ref #9 - verbindung zwischen watch und app geht

- watch startet automatisch auch app
- bpm kommen in hoher geschwindigkeit an
ref #19 - rückweisunsklasse etwas verbessert
- fehlnde files hochgeladen für die bpm estimation

android/ConductorsPhone/app/.gitignore

@@ -0,0 +1 @@
+/build

android/ConductorsPhone/app/build.gradle

@@ -0,0 +1,35 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 26
+    defaultConfig {
+        applicationId "de.tonifetzer.conductorswatch"
+        minSdkVersion 23
+        targetSdkVersion 26
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+    implementation 'com.google.android.support:wearable:2.1.0'
+    implementation 'com.google.android.gms:play-services-wearable:11.8.0'
+    implementation 'com.android.support:percent:26.1.0'
+    implementation 'com.android.support:animated-vector-drawable:26.1.0'
+    implementation 'com.android.support:appcompat-v7:26.1.0'
+    implementation 'com.android.support:support-v4:26.1.0'
+    implementation 'com.android.support:recyclerview-v7:26.1.0'
+    compileOnly 'com.google.android.wearable:wearable:2.1.0'
+}

android/ConductorsPhone/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

android/ConductorsPhone/app/src/androidTest/java/de/tonifetzer/conductorswatch/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package de.tonifetzer.conductorswatch;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("de.tonifetzer.conductorsphone", appContext.getPackageName());
+    }
+}

android/ConductorsPhone/app/src/main/AndroidManifest.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="de.tonifetzer.conductorswatch">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+
+        <meta-data android:name="com.google.android.gms.version"
+            android:value="@integer/google_play_services_version" />
+
+        <service android:name=".DataLayerListenerService">
+            <intent-filter>
+                <action android:name="com.google.android.gms.wearable.MESSAGE_RECEIVED" />
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/start-activity"/>
+            </intent-filter>
+        </service>
+
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name">
+            >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

android/ConductorsPhone/app/src/main/java/de/tonifetzer/conductorswatch/DataLayerListenerService.java

@@ -0,0 +1,46 @@
+package de.tonifetzer.conductorswatch;
+
+import android.content.Intent;
+import android.util.Log;
+import com.google.android.gms.common.api.GoogleApiClient;
+import com.google.android.gms.wearable.MessageEvent;
+import com.google.android.gms.wearable.Wearable;
+import com.google.android.gms.wearable.WearableListenerService;
+
+/**
+ * Listens to DataItems and Messages from the local node.
+ */
+public class DataLayerListenerService extends WearableListenerService {
+
+    private static final String TAG = "DataLayerService";
+    private static final String START_ACTIVITY_PATH = "/start-activity";
+
+    GoogleApiClient mGoogleApiClient;
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        mGoogleApiClient = new GoogleApiClient.Builder(this)
+                .addApi(Wearable.API)
+                .build();
+        mGoogleApiClient.connect();
+    }
+
+    @Override
+    public void onMessageReceived(MessageEvent messageEvent) {
+        LOGD(TAG, "onMessageReceived: " + messageEvent);
+
+        // Check to see if the message is to start an activity
+        if (messageEvent.getPath().equals(START_ACTIVITY_PATH)) {
+            Intent startIntent = new Intent(this, MainActivity.class);
+            startIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            startActivity(startIntent);
+        }
+    }
+
+    public static void LOGD(final String tag, String message) {
+        if (Log.isLoggable(tag, Log.DEBUG)) {
+            Log.d(tag, message);
+        }
+    }
+}

android/ConductorsPhone/app/src/main/java/de/tonifetzer/conductorswatch/MainActivity.java

@@ -0,0 +1,57 @@
+package de.tonifetzer.conductorswatch;
+
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.widget.TextView;
+
+import com.google.android.gms.tasks.Task;
+import com.google.android.gms.wearable.MessageEvent;
+import com.google.android.gms.wearable.MessageClient;
+import com.google.android.gms.wearable.Wearable;
+
+public class MainActivity extends AppCompatActivity implements MessageClient.OnMessageReceivedListener{
+
+    private TextView mTextView;
+    private String mCurBPM;
+
+    private static final String TAG = "DataLayerService";
+    private static final String START_ACTIVITY_PATH = "/start-activity";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        mTextView = (TextView) findViewById(R.id.bpmText);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        Wearable.getMessageClient(this).addListener(this);
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        Wearable.getMessageClient(this).removeListener(this);
+    }
+
+
+    @Override
+    public void onMessageReceived(MessageEvent messageEvent) {
+        // Check to see if the message is to start an activity
+        if (messageEvent.getPath().equals(START_ACTIVITY_PATH)) {
+            Log.d(TAG, "onStartReceived: " + messageEvent);
+        }
+        else{
+            //update bpm
+            Log.d(TAG, "onBPMReceived: " + messageEvent);
+            //mTextView.setText(messageEvent.getPath());
+        }
+    }
+}

android/ConductorsPhone/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>

android/ConductorsPhone/app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillColor="#26A69A"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+</vector>

android/ConductorsPhone/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="de.tonifetzer.conductorswatch.MainActivity">
+
+    <TextView
+        android:id="@+id/bpmText"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        android:text="240"
+        android:textStyle="bold"
+        android:textColor="#158b69"
+        android:textSize="100sp"/>
+
+</android.support.constraint.ConstraintLayout>

android/ConductorsPhone/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

android/ConductorsPhone/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

android/ConductorsPhone/app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

android/ConductorsPhone/app/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">Conductor\'s Phone</string>
+</resources>

android/ConductorsPhone/app/src/main/res/values/styles.xml

@@ -0,0 +1,11 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>

android/ConductorsPhone/app/src/test/java/de/tonifetzer/conductorswatch/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package de.tonifetzer.conductorswatch;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}

android/ConductorsPhone/build.gradle

@@ -0,0 +1,27 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.0.1'
+        
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

android/ConductorsPhone/gradle.properties

@@ -0,0 +1,17 @@
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true

android/ConductorsPhone/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Tue Dec 19 11:59:51 CET 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip

android/ConductorsPhone/gradlew

@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

android/ConductorsPhone/gradlew.bat

@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

android/ConductorsPhone/settings.gradle

@@ -0,0 +1 @@
+include ':app'

android/ConductorsWatch/.gitignore

@@ -0,0 +1,9 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild

android/ConductorsWatch/app/src/main/java/de/tonifetzer/conductorswatch/bpmEstimation/AccelerometerData.java

@@ -0,0 +1,31 @@
+package de.tonifetzer.conductorswatch.bpmEstimation;
+
+/**
+ * Created by toni on 15/12/17.
+ */
+public class AccelerometerData {
+
+    public double x,y,z;
+    public long ts;
+
+    public AccelerometerData(long ts, double x, double y, double z){
+        this.ts = ts;
+        this.x = x;
+        this.y = y;
+        this.z = z;
+    }
+
+    @Override
+    public boolean equals(Object other){
+
+        if (this == other)
+            return true;
+
+        if (!(other instanceof AccelerometerData)) {
+            return false;
+        }
+
+        AccelerometerData ad = (AccelerometerData) other;
+        return ts == ad.ts;
+    }
+}

android/ConductorsWatch/app/src/main/java/de/tonifetzer/conductorswatch/bpmEstimation/AccelerometerInterpolator.java

@@ -0,0 +1,108 @@
+package de.tonifetzer.conductorswatch.bpmEstimation;
+
+import java.util.Arrays;
+
+/**
+ * Created by toni on 16/12/17.
+ */
+public class AccelerometerInterpolator {
+
+    private double[] mX;
+    private double[] mY;
+    private double[] mZ;
+    private long[] mTsInterp;
+
+    public AccelerometerInterpolator(AccelerometerWindowBuffer ab, double sampleRate_ms){
+
+        long size = (ab.getYongest().ts - (ab.getOldest().ts - (long) sampleRate_ms)) / (long) sampleRate_ms;
+        mTsInterp = new long[(int)size];
+        int j = 0;
+        for(long i = ab.getOldest().ts; i <= ab.getYongest().ts; i += sampleRate_ms){
+            mTsInterp[j++] = i;
+        }
+
+        mX = interpLinear(ab.getTs(), ab.getX(), mTsInterp);
+        mY = interpLinear(ab.getTs(), ab.getY(), mTsInterp);
+        mZ = interpLinear(ab.getTs(), ab.getZ(), mTsInterp);
+    }
+
+    public long[] getTs(){
+        return mTsInterp;
+    }
+
+    public double[] getX(){
+        return mX;
+    }
+
+    public double[] getY(){
+        return mY;
+    }
+
+    public double[] getZ(){
+        return mZ;
+    }
+
+    private static double[] interpLinear(double[] x, double[] y, double[] xi) throws IllegalArgumentException {
+        if (x.length != y.length) {
+            throw new IllegalArgumentException("X and Y must be the same length");
+        }
+        if (x.length == 1) {
+            throw new IllegalArgumentException("X must contain more than one value");
+        }
+        double[] dx = new double[x.length - 1];
+        double[] dy = new double[x.length - 1];
+        double[] slope = new double[x.length - 1];
+        double[] intercept = new double[x.length - 1];
+
+        // Calculate the line equation (i.e. slope and intercept) between each point
+        for (int i = 0; i < x.length - 1; i++) {
+            dx[i] = x[i + 1] - x[i];
+            if (dx[i] == 0) {
+                throw new IllegalArgumentException("X must be montotonic. A duplicate " + "x-value was found");
+            }
+            if (dx[i] < 0) {
+                throw new IllegalArgumentException("X must be sorted");
+            }
+            dy[i] = y[i + 1] - y[i];
+            slope[i] = dy[i] / dx[i];
+            intercept[i] = y[i] - x[i] * slope[i];
+        }
+
+        // Perform the interpolation here
+        double[] yi = new double[xi.length];
+        for (int i = 0; i < xi.length; i++) {
+            if ((xi[i] > x[x.length - 1]) || (xi[i] < x[0])) {
+                yi[i] = Double.NaN;
+            }
+            else {
+                int loc = Arrays.binarySearch(x, xi[i]);
+                if (loc < -1) {
+                    loc = -loc - 2;
+                    yi[i] = slope[loc] * xi[i] + intercept[loc];
+                }
+                else {
+                    yi[i] = y[loc];
+                }
+            }
+        }
+
+        return yi;
+    }
+
+    private static double[] interpLinear(long[] x, double[] y, long[] xi) throws IllegalArgumentException {
+
+        double[] xd = new double[x.length];
+        for (int i = 0; i < x.length; i++) {
+            xd[i] = x[i];
+        }
+
+        double[] xid = new double[xi.length];
+        for (int i = 0; i < xi.length; i++) {
+            xid[i] = xi[i];
+        }
+
+        return interpLinear(xd, y, xid);
+    }
+
+
+}

android/ConductorsWatch/app/src/main/java/de/tonifetzer/conductorswatch/bpmEstimation/AccelerometerWindowBuffer.java

@@ -0,0 +1,74 @@
+package de.tonifetzer.conductorswatch.bpmEstimation;
+
+import de.tonifetzer.conductorswatch.utilities.Utils;
+import java.util.ArrayList;
+
+/**
+ * Created by toni on 15/12/17.
+ */
+public class AccelerometerWindowBuffer extends ArrayList<AccelerometerData> {
+
+    private int mWindowSize;
+    private int mOverlapSize;
+    private int mOverlapCounter;
+
+    public AccelerometerWindowBuffer(int windowSize, int overlap){
+        mWindowSize = windowSize;
+        mOverlapSize = overlap;
+        mOverlapCounter = 1;
+    }
+
+    //TODO: add exception handling. falseArgument if ad has no numeric x,y,z
+    public boolean add(AccelerometerData ad){
+
+        //do not add duplicates!
+        if(!isEmpty() && getYongest().equals(ad)){
+            return false;
+        }
+
+        boolean r = super.add(ad);
+        if (size() > mWindowSize){
+            removeRange(0, size() - mWindowSize);
+        }
+
+        ++mOverlapCounter;
+        return r;
+    }
+
+    public boolean isNextWindowReady(){
+        if((size() > mWindowSize / 2) && mOverlapCounter > mOverlapSize){
+            mOverlapCounter = 1;
+
+            return true;
+        }
+        return false;
+    }
+
+    public AccelerometerData getYongest() {
+        return get(size() - 1);
+    }
+
+    public AccelerometerData getOldest() {
+        return get(0);
+    }
+
+    public double[] getX(){
+        return this.stream().mapToDouble(d -> d.x).toArray();
+    }
+
+    public double[] getY(){
+        return this.stream().mapToDouble(d -> d.y).toArray();
+    }
+
+    public double[] getZ(){
+        return this.stream().mapToDouble(d -> d.z).toArray();
+    }
+
+    public long[] getTs(){
+        return this.stream().mapToLong(d -> d.ts).toArray();
+    }
+
+    public int getOverlapSize(){
+        return mOverlapSize;
+    }
+}

android/ConductorsWatch/app/src/main/java/de/tonifetzer/conductorswatch/bpmEstimation/AutoCorrelation.java

@@ -0,0 +1,79 @@
+package de.tonifetzer.conductorswatch.bpmEstimation;
+
+import org.jtransforms.fft.DoubleFFT_1D;
+import de.tonifetzer.conductorswatch.utilities.Utils;
+import java.util.Arrays;
+
+/**
+ * Created by toni on 15/12/17.
+ */
+public class AutoCorrelation {
+
+    private int mMaxLag;
+    private double[] mCorr;
+
+    public AutoCorrelation(double[] data, int maxLag){
+
+        mMaxLag = maxLag;
+        mCorr = fft(data);
+    }
+
+    public double[] getCorr(){
+        return mCorr;
+    }
+
+    private double[] fft(double[] data) {
+
+        if(mMaxLag < 1){
+            throw new RuntimeException("maxlag has to be greater 1");
+        }
+
+        int n = data.length;
+        double[] x = Arrays.copyOf(data, n);
+        int mxl = Math.min(mMaxLag, n - 1);
+        int ceilLog2 = Utils.nextPow2(2*n -1);
+        int n2 = (int) Math.pow(2,ceilLog2);
+
+        // x - mean(x) (pointwise)
+        double x_mean = Utils.mean(x);
+        for(int i = 0; i < x.length; ++i){
+            x[i] -= x_mean;
+        }
+
+        // double the size of x and fill up with zeros. if x is not even, add additional 0
+        double[] x2 = new double[n2 * 2]; //need double the size for fft.realForwardFull (look into method description)
+        Arrays.fill(x2, 0);
+        System.arraycopy(x,0, x2, 0, x.length);
+
+        // x_fft calculate fft 1D
+        DoubleFFT_1D fft = new DoubleFFT_1D(n2);
+        fft.realForwardFull(x2);
+
+        // Cr = abs(x_fft).^2 (absolute with complex numbers is (r^2) + (i^2)
+        double[] Cr = new double[n2 * 2];
+        int j = 0;
+        for(int i = 0; i < x2.length; ++i){
+            Cr[j++] = Utils.sqr(x2[i]) + Utils.sqr(x2[i+1]);
+            ++i;  //skip the complex part
+        }
+
+        // ifft(Cr,[],1)
+        DoubleFFT_1D ifft = new DoubleFFT_1D(n2);
+        ifft.realInverseFull(Cr, true);
+
+        // remove complex part and scale/normalize
+        double[] c1 = new double[n2];
+        j = 0;
+        for(int i = 0; i < Cr.length; ++i){
+            c1[j++] = Cr[i] / Cr[0];
+            ++i;  //skip the complex part
+        }
+
+        // Keep only the lags we want and move negative lags before positive lags.
+        double[] c = new double[(mxl * 2) + 1];
+        System.arraycopy(c1, 0, c, mxl, mxl + 1); // +1 to place the 1.0 in the middle of correlation
+        System.arraycopy(c1, n2 - mxl, c, 0, mxl);
+
+        return c;
+    }
+}

android/ConductorsWatch/app/src/main/java/de/tonifetzer/conductorswatch/bpmEstimation/BpmEstimator.java

@@ -0,0 +1,199 @@
+package de.tonifetzer.conductorswatch.bpmEstimation;
+
+import de.tonifetzer.conductorswatch.utilities.MovingFilter;
+import de.tonifetzer.conductorswatch.utilities.SimpleKalman;
+import de.tonifetzer.conductorswatch.utilities.Utils;
+
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+
+/**
+ * Created by toni on 17/12/17.
+ */
+public class BpmEstimator {
+
+    private AccelerometerWindowBuffer mBuffer;
+    private double mSampleRate_ms;
+
+    private LinkedList<Double> mBpmHistory_X;
+    private LinkedList<Double> mBpmHistory_Y;
+    private LinkedList<Double> mBpmHistory_Z;
+
+    private LinkedList<Double> mBpmHistory;
+    private int mResetCounter;
+    private int mResetLimit_ms;
+
+    private MovingFilter mMvg;
+    //private SimpleKalman mKalman;
+
+
+    public BpmEstimator(AccelerometerWindowBuffer windowBuffer, double sampleRate_ms, int resetAfter_ms){
+        mBuffer = windowBuffer;
+        mSampleRate_ms = sampleRate_ms;
+
+        mBpmHistory_X = new LinkedList<>();
+        mBpmHistory_Y = new LinkedList<>();
+        mBpmHistory_Z = new LinkedList<>();
+
+        mBpmHistory = new LinkedList<>();
+        mResetCounter = 0;
+        mResetLimit_ms = resetAfter_ms;
+
+        mMvg = new MovingFilter(2);
+        //mKalman = new SimpleKalman();
+    }
+
+    public double estimate(){
+
+        double sampleRate = mSampleRate_ms;
+        if(sampleRate <= 0){
+            sampleRate = Math.round(Utils.mean(Utils.diff(mBuffer.getTs())));
+        }
+
+        AccelerometerInterpolator interp = new AccelerometerInterpolator(mBuffer, sampleRate);
+
+        //are we conducting?
+        //just look at the newest 512 samples
+        //List<AccelerometerData> subBuffer =  mBuffer.subList(mBuffer.size() - 512, mBuffer.size());
+
+        double[] xAutoCorr = new AutoCorrelation(interp.getX(), 512).getCorr();
+        double[] yAutoCorr = new AutoCorrelation(interp.getY(), 512).getCorr();
+        double[] zAutoCorr = new AutoCorrelation(interp.getZ(), 512).getCorr();
+
+        Peaks pX = new Peaks(xAutoCorr, 50, 0.1f, 0, false);
+        Peaks pY = new Peaks(yAutoCorr, 50, 0.1f, 0, false);
+        Peaks pZ = new Peaks(zAutoCorr, 50, 0.1f, 0, false);
+
+        mBpmHistory_X.add(pX.getBPM(sampleRate));
+        mBpmHistory_Y.add(pY.getBPM(sampleRate));
+        mBpmHistory_Z.add(pZ.getBPM(sampleRate));
+
+        double estimatedBPM = getBestBpmEstimation(pX, pY, pZ);
+        if(estimatedBPM != -1){
+
+            //moving avg (lohnt dann, wenn wir viele daten haben)
+            mMvg.add(estimatedBPM);
+            mBpmHistory.add(mMvg.getAverage());
+
+            //moving median (lohnt nur bei konstantem tempo, da wir nur ein tempo damit gut halten können.)
+            //mMvg.add(estimatedBPM);
+            //mBpmHistory.add(mMvg.getMedian());
+
+            //kalman filter (lohnt dann, wenn wir konstantes tempo haben, mit startangabe!)
+
+            //standard last element
+            //mBpmHistory.add(estimatedBPM);
+            //mResetCounter = 0;
+        }
+        else {
+            int resetAfter = (int) Math.round(mResetLimit_ms / (mBuffer.getOverlapSize() * sampleRate));
+            if(++mResetCounter > resetAfter){
+                mBpmHistory.clear();
+                mBuffer.clear();
+                mMvg.clear();
+                mResetCounter = 0;
+            }
+            return -1;
+        }
+
+        //last element
+        return mBpmHistory.getLast();
+    }
+
+    public double getMeanBpm(){
+        return Utils.mean(mBpmHistory);
+    }
+
+    public double getMedianBPM(){
+        return Utils.median(mBpmHistory);
+    }
+
+    private double getBestBpmEstimation(Peaks peaksX, Peaks peaksY, Peaks peaksZ) throws IllegalArgumentException {
+
+        int cntNumAxis = 0;
+        double sumCorr = 0; //to prevent division by zero
+        double sumRms = 0;
+        double sumNumInter = 0;
+
+        double corrMeanX = 0, corrRmsX = 0;
+        int corrNumInterX = 0;
+        if(peaksX.hasPeaks()){
+            corrMeanX = Utils.geometricMean(peaksX.getPeaksValueWithoutZeroIdxAndNegativeValues());
+            corrRmsX = Utils.rms(peaksX.getPeaksValueWithoutZeroIdx());
+            corrNumInterX = Utils.intersectionNumber(peaksX.getData(), 0.2f);
+
+            ++cntNumAxis;
+            sumCorr += corrMeanX;
+            sumRms += corrRmsX;
+            sumNumInter += corrNumInterX;
+        }
+
+        double corrMeanY = 0, corrRmsY = 0;
+        int corrNumInterY = 0;
+        if(peaksY.hasPeaks()){
+            corrMeanY = Utils.geometricMean(peaksY.getPeaksValueWithoutZeroIdxAndNegativeValues());
+            corrRmsY = Utils.rms(peaksY.getPeaksValueWithoutZeroIdx());
+            corrNumInterY = Utils.intersectionNumber(peaksY.getData(), 0.2f);
+
+            ++cntNumAxis;
+            sumCorr += corrMeanY;
+            sumRms += corrRmsY;
+            sumNumInter += corrNumInterY;
+        }
+
+        double corrMeanZ = 0, corrRmsZ = 0;
+        int corrNumInterZ = 0;
+        if(peaksZ.hasPeaks()){
+            corrMeanZ = Utils.geometricMean(peaksZ.getPeaksValueWithoutZeroIdxAndNegativeValues());
+            corrRmsZ = Utils.rms(peaksZ.getPeaksValueWithoutZeroIdx());
+            corrNumInterZ = Utils.intersectionNumber(peaksZ.getData(), 0.2f);
+
+            ++cntNumAxis;
+            sumCorr += corrMeanZ;
+            sumRms += corrRmsZ;
+            sumNumInter += corrNumInterZ;
+        }
+
+        //no peaks, reject
+        if(cntNumAxis == 0){
+            //throw new IllegalArgumentException("All Peaks are empty! -> Reject Estimation");
+            return -1;
+        }
+
+        /*
+        System.out.println("RMS-X: " + corrRmsX);
+        System.out.println("GEO-X: " + corrMeanX);
+        System.out.println("INTER-X: " + corrNumInterX);
+
+        System.out.println("RMS-Y: " + corrRmsY);
+        System.out.println("GEO-Y: " + corrMeanY);
+        System.out.println("INTER-Y: " + corrNumInterY);
+
+        System.out.println("RMS-Z: " + corrRmsZ);
+        System.out.println("GEO-Z: " + corrMeanZ);
+        System.out.println("INTER-Z: " + corrNumInterZ);
+        */
+
+        //values to low, reject
+        //TODO: this is a pretty simple assumption. first shot!
+        if(corrRmsX < 0.25 && corrRmsY < 0.25 && corrRmsZ < 0.25){
+           return -1;
+        }
+
+        double quantityX = ((corrMeanX / sumCorr) + (corrRmsX / sumRms) + (corrNumInterX / sumNumInter)) / cntNumAxis;
+        double quantityY  = ((corrMeanY / sumCorr) + (corrRmsY / sumRms) + (corrNumInterY / sumNumInter)) / cntNumAxis;
+        double quantityZ = ((corrMeanZ / sumCorr) + (corrRmsZ / sumRms) + (corrNumInterZ / sumNumInter)) / cntNumAxis;
+
+        //get best axis by quantity and estimate bpm
+        if(quantityX > quantityY && quantityX > quantityZ){
+            return mBpmHistory_X.getLast();
+        }
+        else if(quantityY > quantityZ){
+            return mBpmHistory_Y.getLast();
+        }
+        else {
+            return mBpmHistory_Z.getLast();
+        }
+    }
+}

android/ConductorsWatch/app/src/main/java/de/tonifetzer/conductorswatch/bpmEstimation/Peaks.java

@@ -0,0 +1,206 @@
+package de.tonifetzer.conductorswatch.bpmEstimation;
+
+import de.tonifetzer.conductorswatch.utilities.Utils;
+
+import java.util.LinkedList;
+
+/**
+ * Created by toni on 15/12/17.
+ */
+public class Peaks {
+
+    private LinkedList<Integer> mPeaksIdx; //provide the idx within the given data array
+    private LinkedList<Integer> mPeaksPos; //the real position within the data-rang e.g. lag -1024 to 1024
+    private LinkedList<Double> mPeaksValue; //the value at mPeaksPos
+
+    private double[] mData;
+
+    /**
+     * Simple method for finding local maxima in an array
+     * @param data  input
+     * @param width minimum distance between peaks
+     * @param threshold minimum value of peaks
+     * @param decayRate how quickly previous peaks are forgotten
+     * @param isRelative minimum value of peaks is relative to local average
+     * @return array of peaks
+     */
+    public Peaks(double[] data, int width, double threshold, double decayRate, boolean isRelative){
+
+        this.mData = data;
+        this.mPeaksIdx = new LinkedList<>();
+        this.mPeaksPos = new LinkedList<>();
+        this.mPeaksValue = new LinkedList<>();
+
+        //create the peaks
+        simplePeakFinder(data, width, threshold, decayRate, isRelative);
+
+        updateLists();
+    }
+
+    public LinkedList<Integer> getPeaksIdx() {
+        return mPeaksIdx;
+    }
+
+    public int[] getPeaksIdxAsArray() {
+        return mPeaksIdx.stream().mapToInt(i->i).toArray();
+    }
+
+    public LinkedList<Integer> getPeaksPos() {
+        return mPeaksPos;
+    }
+
+    public double[] getPeaksPosAsArray() {
+        return mPeaksPos.stream().mapToDouble(i -> i).toArray();
+    }
+
+    public LinkedList<Double> getPeaksValue() {
+        return mPeaksValue;
+    }
+
+    public double[] getPeaksValueAsArray() {
+        return mPeaksValue.stream().mapToDouble(i -> i).toArray();
+    }
+
+    public double[] getData(){
+        return mData;
+    }
+
+    //TODO: implement findFalseDetectedPeaks
+    public void improveResults(double[] data){
+
+        updateLists();
+    }
+
+    public double[] getPeaksValueWithoutZeroIdx() {
+
+        double[] values = new double[mPeaksIdx.size() - 1];
+        int mid = (mData.length / 2);
+        int j = 0;
+        for(int i = 0; i < mPeaksIdx.size(); ++i){
+            if(!(mPeaksIdx.get(i) == mid)){
+                values[j] = mPeaksValue.get(i);
+                ++j;
+            }
+        }
+        return values;
+    }
+
+    public double[] getPeaksValueWithoutNegativeValues() {
+
+        double[] values = new double[mPeaksIdx.size() - 1];
+        int i = 0;
+        for(Integer idx : mPeaksIdx) {
+            double curVal = mPeaksValue.get(idx);
+            if(curVal > 0){
+                values[i] = curVal;
+                ++i;
+            }
+        }
+
+        return values;
+    }
+
+    public double[] getPeaksValueWithoutZeroIdxAndNegativeValues(){
+        double[] values = new double[mPeaksIdx.size() - 1];
+        int mid = (mData.length / 2);
+        int j = 0;
+        for(int i = 0; i < mPeaksIdx.size(); ++i){
+            double curVal = mPeaksValue.get(i);
+            if(!(mPeaksIdx.get(i) == mid) && curVal > 0){
+                values[j] = curVal;
+                ++j;
+            }
+        }
+        return values;
+    }
+
+    public boolean hasPeaks() {
+        return mPeaksIdx.size() > 1;
+    }
+
+    /**
+     * Provides an estimation of beats per minute given a samplerate in milliseconds
+     * @param sampleRate_ms
+     * @return bpm if peaks found and conducting activity recognized, else -1
+     */
+    public double getBPM(double sampleRate_ms){
+
+        //todo: rückweisungsklasse kann auch hier mit rein.
+        if(hasPeaks()){
+
+            //todo diff and mean method for linkedlists for speed
+            //return 60000 / Utils.mean(Utils.diff(mPeaksPos.stream().mapToDouble(i -> i * sampleRate_ms).toArray()));
+            return 60000 / (sampleRate_ms * Utils.mean(Utils.diff(mPeaksPos.stream().mapToDouble(i -> i).toArray())));
+        }
+
+        return -1;
+    }
+
+    /**
+     * updates the position and values of the found peaks.
+     * call this if peaks are somewhat changed.
+     */
+    private void updateLists(){
+        //fill the position and the value lists
+        for(Integer idx : mPeaksIdx){
+            int mid = (mData.length / 2);
+            mPeaksPos.add(idx - mid);
+
+            mPeaksValue.add(mData[idx]);
+        }
+    }
+
+    //TODO: findPeaks method identical to Matlab... with PeakProminence
+
+    private void simplePeakFinder(double[] data, int width, double threshold, double decayRate, boolean isRelative) {
+        int maxp;
+        int mid = 0;
+        int end = data.length;
+        double av = data[0];
+        while (mid < end) {
+            av = decayRate * av + (1 - decayRate) * data[mid];
+            if (av < data[mid])
+                av = data[mid];
+            int i = mid - width;
+            if (i < 0)
+                i = 0;
+            int stop = mid + width + 1;
+            if (stop > data.length)
+                stop = data.length;
+            maxp = i;
+            for (i++; i < stop; i++)
+                if (data[i] > data[maxp])
+                    maxp = i;
+            if (maxp == mid) {
+                if (overThreshold(data, maxp, width, threshold, isRelative, av)){
+                    this.mPeaksIdx.add(new Integer(maxp));
+                }
+            }
+            mid++;
+        }
+    }
+
+    private boolean overThreshold(double[] data, int index, int width,
+                                         double threshold, boolean isRelative,
+                                         double av) {
+        int pre = 3;
+        int post = 1;
+
+        if (data[index] < av)
+            return false;
+        if (isRelative) {
+            int iStart = index - pre * width;
+            if (iStart < 0)
+                iStart = 0;
+            int iStop = index + post * width;
+            if (iStop > data.length)
+                iStop = data.length;
+            double sum = 0;
+            int count = iStop - iStart;
+            while (iStart < iStop)
+                sum += data[iStart++];
+            return (data[index] > sum / count + threshold);
+        } else
+            return (data[index] > threshold);
+    }
+}

android/ConductorsWatch/app/src/main/java/de/tonifetzer/conductorswatch/utilities/MovingFilter.java

@@ -0,0 +1,37 @@
+package de.tonifetzer.conductorswatch.utilities;
+
+import java.util.LinkedList;
+
+/**
+ * Created by toni on 18/12/17.
+ */
+public class MovingFilter {
+
+    private int mSize;
+    private double mTotal = 0d;
+    private LinkedList<Double> mSamples = new LinkedList<>();
+
+    public MovingFilter(int size) {
+        this.mSize = size;
+    }
+
+    public void add(double x) {
+        mTotal += x;
+        mSamples.add(x);
+        if(mSamples.size() > mSize){
+            mTotal -= mSamples.remove();
+        }
+    }
+
+    public double getAverage() {
+        return mTotal / mSamples.size();
+    }
+
+    public double getMedian() {
+        return Utils.median(mSamples);
+    }
+
+    public void clear(){
+        mSamples.clear();
+    }
+}

android/ConductorsWatch/app/src/main/java/de/tonifetzer/conductorswatch/utilities/SimpleKalman.java

@@ -0,0 +1,33 @@
+package de.tonifetzer.conductorswatch.utilities;
+
+/**
+ * Created by toni on 18/12/17.
+ */
+public class SimpleKalman {
+
+    private double mSigmaUpdate;
+    private double mSigmaPrediction;
+    private double mMu;
+    private double mSigma;
+
+    SimpleKalman(double initialMu, double initialSigma, double sigmaUpdate, double sigmaPrediction){
+        mSigmaUpdate = sigmaUpdate;
+        mSigmaPrediction = sigmaPrediction;
+        mMu = initialMu;
+        mSigma = initialSigma;
+    }
+
+    public double update(double data){
+
+        //prediction
+        mMu = mMu;
+        mSigma += mSigmaPrediction;
+
+        //update
+        double k = mSigma / (mSigma + mSigmaUpdate);
+        mMu = mMu + k * (data - mMu);
+        mSigma = (1 - k) * mSigma;
+
+        return mMu;
+    }
+}