I save the current volume both STREAM_RING and STREAM_MUSIC before sTts.get().speak(s, TextToSpeech.QUEUE_ADD, null), I hope the TextToSpeech can speak a text with max volume,
but in fact I find the TextToSpeech speak the text with current volume, it seems that sTts.get().speak is asynchronous.
How can I make TextToSpeech to speak a text with max volume and restore original volume after speak end? Thanks!
public class SpeechTxt {
private static SoftReference<TextToSpeech> sTts;
public static void SpeakOut(final Context context, final String s) {
final Context appContext = context.getApplicationContext();
if (sTts == null) {
sTts = new SoftReference<TextToSpeech>(new TextToSpeech(appContext,
new TextToSpeech.OnInitListener() {
@Override
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) {
speak(appContext, s);
} else {
}
}
}));
} else {
speak(appContext, s);
}
}
private static void speak(Context context, String s) {
if (sTts != null) {
switch (sTts.get().setLanguage(Locale.getDefault())) {
case TextToSpeech.LANG_COUNTRY_AVAILABLE:
case TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE:
case TextToSpeech.LANG_AVAILABLE: {
sTts.get().setPitch((float) 0.6);
sTts.get().setSpeechRate((float) 0.8);
int currentRing=PublicParFun.GetCurrentVol(context, AudioManager.STREAM_RING);
int currentPlay=PublicParFun.GetCurrentVol(context, AudioManager.STREAM_MUSIC);
PublicParFun.SetRingVol(context, 0);
PublicParFun.SetPlayVol(context,1000000);
sTts.get().speak(s, TextToSpeech.QUEUE_ADD, null);
PublicParFun.SetRingVol(context, currentRing);
PublicParFun.SetPlayVol(context,currentPlay);
break;
}
case TextToSpeech.LANG_MISSING_DATA: {
break;
}
case TextToSpeech.LANG_NOT_SUPPORTED: // not much to do here
}
}
}
public static int GetCurrentVol(Context myContext,int streamType){
AudioManager mAudioManager = (AudioManager)myContext.getSystemService(Context.AUDIO_SERVICE);
int current = mAudioManager.getStreamVolume( streamType);
return current;
}
public static void SetRingVol(Context myContext,int vol){
SetVol(myContext,AudioManager.STREAM_RING, vol);
}
public static void SetPlayVol(Context myContext,int vol){
SetVol(myContext,AudioManager.STREAM_MUSIC, vol);
}
private static void SetVol(Context myContext,int streamType,int vol){
AudioManager mAudioManager = (AudioManager)myContext.getSystemService(Context.AUDIO_SERVICE);
int max = mAudioManager.getStreamMaxVolume(streamType);
if (vol>max){
vol=max;
}
mAudioManager.setStreamVolume(streamType,vol, 0);
}
}
