https://github.com/rusefi/web_backend/issues/96

android/app/src/main/AndroidManifest.xml

@@ -29,5 +29,6 @@
         </activity>
     </application>
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
 
 </manifest>

android/app/src/main/java/com/rusefi/app/rusEFI.java

@@ -63,6 +63,8 @@ public class rusEFI extends Activity {
 
     private UsbManager usbManager;
     private DfuUpload dfuUpload;
+    private SoundBroadcast soundBroadcast = new SoundBroadcast();
+
 
     @SuppressLint("SetTextI18n")
     @Override
@@ -202,7 +204,7 @@ public class rusEFI extends Activity {
         if (view.getId() == R.id.button) {
             handleButton();
         } else if (view.getId() == R.id.buttonSound) {
-
+            soundBroadcast.start();
 
         }
     }

java_console/shared_ui/src/com/rusefi/ts_plugin/AudioPlayback.java

@@ -0,0 +1,86 @@
+package com.rusefi.ts_plugin;
+
+import javax.sound.sampled.*;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+public class AudioPlayback {
+    private static final int sampleRate = 16000;
+
+    private static final AudioFormat format = new AudioFormat(sampleRate, 16, 1, true, false);
+
+    public AudioPlayback() throws IOException {
+        ServerSocket serverSocket = new ServerSocket(16000);
+
+        while (true) {
+
+            Socket clientSocket = serverSocket.accept();
+            new Thread(() -> {
+                try {
+                    playSound(clientSocket.getInputStream());
+                } catch (IOException e) {
+                    throw new IllegalStateException(e);
+                }
+            }).start();
+        }
+    }
+
+    public static void start() {
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    new AudioPlayback();
+                } catch (IOException e) {
+                    throw new IllegalStateException(e);
+                }
+            }
+        }).start();
+    }
+
+
+    private static void playSound(InputStream stream) throws IOException {
+        while (true) {
+            byte[] buffer = new byte[30000];
+            int got = stream.read(buffer);
+
+            byte copy[] = new byte[got];
+            System.arraycopy(buffer, 0, copy, 0, got);
+            new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    toSpeaker(copy);
+                }
+            }).start();
+        }
+    }
+
+    public static void toSpeaker(byte soundbytes[]) {
+        try {
+            DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class, format);
+            SourceDataLine sourceDataLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo);
+
+            sourceDataLine.open(format);
+
+            FloatControl volumeControl = (FloatControl) sourceDataLine.getControl(FloatControl.Type.MASTER_GAIN);
+            volumeControl.setValue(100.0f);
+
+            sourceDataLine.start();
+            sourceDataLine.open(format);
+
+            sourceDataLine.start();
+
+            System.out.println("format? :" + sourceDataLine.getFormat());
+
+            sourceDataLine.write(soundbytes, 0, soundbytes.length);
+            System.out.println("Playing " + soundbytes.toString());
+            sourceDataLine.drain();
+            sourceDataLine.close();
+        } catch (Exception e) {
+            System.out.println("Not working in speakers...");
+            e.printStackTrace();
+        }
+    }
+}

java_console/ui/src/main/java/com/rusefi/ConsoleUI.java

@@ -33,6 +33,9 @@ import static com.rusefi.StartupFrame.setFrameIcon;
 import static com.rusefi.rusEFIVersion.CONSOLE_VERSION;
 import static com.rusefi.ui.storage.PersistentConfiguration.getConfig;
 
+/**
+ * @see StartupFrame
+ */
 public class ConsoleUI {
     private static final int DEFAULT_TAB_INDEX = 0;
     public String port;