Comment obtenez-vous/définissez le volume de médias (spotify) et TTS dans Android?

Question

Diminuer le volume du flux et augmenter le volume TTS en même temps

J'avais cette application Android qui parle avec TTS à chaque fois et utilise la musique en streaming (spotify). Donc, j'ai besoin de diminuer le volume et augmenter le TTS

J'utilise ce code mais cela diminue aussi les tts.

AudioManager audioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE); 

audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,[int value],[if desired a flag]); 

Toute manière de diminuer seulement spotify comme musique de flux.

dans Java/android.

Answer 1

Ce que vous voulez faire est de savoir que 'audio ducking'

Voici quelques exemples de code:

/** 
    * Our {@link AudioManager.OnAudioFocusChangeListener} 
    */ 
    private static AudioManager.OnAudioFocusChangeListener audioFocus = new AudioManager.OnAudioFocusChangeListener() { 

     @Override 
     public void onAudioFocusChange(final int focusChange) { 
      if (DEBUG) { 
       MyLog.i(CLS_NAME, "AudioManager focusChange: " + focusChange); 
      } 

      switch (focusChange) { 

       case AudioManager.AUDIOFOCUS_GAIN: 
        if (DEBUG) { 
         MyLog.i(CLS_NAME, "AudioManager focusChange: AUDIOFOCUS_GAIN"); 
        } 
        break; 
       case AudioManager.AUDIOFOCUS_LOSS: 
        if (DEBUG) { 
         MyLog.i(CLS_NAME, "AudioManager focusChange: AUDIOFOCUS_LOSS"); 
        } 
        break; 
       case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT: 
        if (DEBUG) { 
         MyLog.i(CLS_NAME, "AudioManager focusChange: AUDIOFOCUS_LOSS_TRANSIENT"); 
        } 
        break; 
       case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK: 
        if (DEBUG) { 
         MyLog.i(CLS_NAME, "AudioManager focusChange: AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK"); 
        } 
        break; 
       default: 
        if (DEBUG) { 
         MyLog.i(CLS_NAME, "AudioManager focusChange: AUDIOFOCUS default"); 
        } 
        break; 
      } 
     } 
    }; 

    /** 
    * Duck the audio 
    * 
    * @param ctx the application context 
    */ 
    public static void duckAudioMedia(final Context ctx) { 
     if (DEBUG) { 
      MyLog.i(CLS_NAME, "duckAudioMedia"); 
     } 

     try { 

      final AudioManager audioManager = (AudioManager) ctx.getSystemService(Context.AUDIO_SERVICE); 

      switch (audioManager.requestAudioFocus(audioFocus, AudioManager.STREAM_MUSIC, 
        AudioManager.AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK)) { 

       case AudioManager.AUDIOFOCUS_REQUEST_FAILED: 
        if (DEBUG) { 
         MyLog.w(CLS_NAME, "AudioManager duckAudioMedia AUDIOFOCUS_REQUEST_FAILED"); 
        } 
        break; 
       case AudioManager.AUDIOFOCUS_REQUEST_GRANTED: 
        if (DEBUG) { 
         MyLog.i(CLS_NAME, "AudioManager duckAudioMedia AUDIOFOCUS_REQUEST_GRANTED"); 
        } 
        break; 
       default: 
        if (DEBUG) { 
         MyLog.i(CLS_NAME, "AudioManager duckAudioMedia AUDIOFOCUS default"); 
        } 
        break; 
      } 
     } catch (final NullPointerException e) { 
      if (DEBUG) { 
       MyLog.w(CLS_NAME, "duckAudioMedia: NullPointerException"); 
       e.printStackTrace(); 
      } 
     } catch (final Exception e) { 
      if (DEBUG) { 
       MyLog.w(CLS_NAME, "duckAudioMedia: Exception"); 
       e.printStackTrace(); 
      } 
     } 
    } 

    /** 
    * Notify the System that any previous condition requiring to duck or pause audio is now complete. 
    * 
    * @param ctx the application context 
    */ 
    public static void abandonAudioMedia(final Context ctx) { 
     if (DEBUG) { 
      MyLog.i(CLS_NAME, "abandonAudioMedia"); 
     } 

     try { 

      final AudioManager audioManager = (AudioManager) ctx.getSystemService(Context.AUDIO_SERVICE); 

      switch (audioManager.abandonAudioFocus(audioFocus)) { 

       case AudioManager.AUDIOFOCUS_REQUEST_FAILED: 
        if (DEBUG) { 
         MyLog.w(CLS_NAME, "AudioManager abandonAudioMedia AUDIOFOCUS_REQUEST_FAILED"); 
        } 
        break; 
       case AudioManager.AUDIOFOCUS_REQUEST_GRANTED: 
        if (DEBUG) { 
         MyLog.i(CLS_NAME, "AudioManager abandonAudioMedia AUDIOFOCUS_REQUEST_GRANTED"); 
        } 
        break; 
       default: 
        if (DEBUG) { 
         MyLog.i(CLS_NAME, "AudioManager abandonAudioMedia AUDIOFOCUS default"); 
        } 
        break; 
      } 
     } catch (final NullPointerException e) { 
      if (DEBUG) { 
       MyLog.w(CLS_NAME, "abandonAudioMedia: NullPointerException"); 
       e.printStackTrace(); 
      } 
     } catch (final Exception e) { 
      if (DEBUG) { 
       MyLog.w(CLS_NAME, "abandonAudioMedia: Exception"); 
       e.printStackTrace(); 
      } 
     } 
    } 

Vous devez supprimer mon journalisation personnalisé.

Appelez duckAudioMedia lorsque le TTS démarre et abandonAudioMedia lorsque l'énoncé est terminé.