android - How can I make TextToSpeech to speak a text with max volume and restore original volume after speak end? -

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i save current volume both stream_ring , stream_music before stts.get().speak(s, texttospeech.queue_add, null), hope texttospeech can speak text max volume, in fact find texttospeech speak text current volume, seems stts.get().speak asynchronous.

how can make texttospeech speak text max volume , 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 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); }

}

edit

  1. is following code right? fixed original code thinking.

  2. i can't understand why code need add hashmap, think stts.get().setonutteranceprogresslistener , stts.get().setonutterancecompletedlistener don't need hashmap, right?

    hashmap ttsparameters = new hashmap(); ttsparameters.put(texttospeech.engine.key_param_utterance_id,"stringid");

package bll;
public class speechtxt { private static softreference 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);                  final int currentring=publicparfun.getcurrentvol(context, audiomanager.stream_ring);                 final int currentplay=publicparfun.getcurrentvol(context, audiomanager.stream_music);                  publicparfun.setringvol(context, 0);                 publicparfun.setplayvol(context,1000000);                  final context mycontext=context;                  hashmap<string, string> ttsparameters = new hashmap<string, string>();                 ttsparameters.put(texttospeech.engine.key_param_utterance_id,"stringid");                  if (android.os.build.version.sdk_int >=15){                     stts.get().setonutteranceprogresslistener(new utteranceprogresslistener()                     {                         @override                         public void ondone(string utteranceid)                         {                             publicparfun.setringvol(mycontext, currentring);                              publicparfun.setplayvol(mycontext,currentplay);                         }                          @override                         public void onerror(string utteranceid)                         {                             //also, set volume                         }                          @override                         public void onstart(string utteranceid)                         {                            // set volume max                         }                     });                  }else{                                     stts.get().setonutterancecompletedlistener(new onutterancecompletedlistener() {                       @override                       public void onutterancecompleted(string utteranceid) {                          publicparfun.setringvol(mycontext, currentring);                          publicparfun.setplayvol(mycontext,currentplay);                     }                    });                 }                 stts.get().speak(s, texttospeech.queue_add, ttsparameters);                 break;             }             case texttospeech.lang_missing_data: {                 break;             }             case texttospeech.lang_not_supported: // not here             }         }     }

}

edit again

i test many times, when stts.get().speak(s, texttospeech.queue_add, ttsparameters) speak short string, stts.get().setonutterancecompletedlistener(new onutterancecompletedlistener() invoked correctly.

but if stts.get().speak(s, texttospeech.queue_add, ttsparameters) speak long string (about 15 seconds), seems stts.get().setonutterancecompletedlistener(new onutterancecompletedlistener() not invoked. why?

        stts.get().setonutterancecompletedlistener(new onutterancecompletedlistener() {               @override               public void onutterancecompleted(string utteranceid) {                  publicparfun.setringvol(mycontext, currentring);                  publicparfun.setplayvol(mycontext,currentplay);             }            });

the problem be, set currentringvolume directly safter started tts. code not wait until speech has ended. setting volume current volume, after speech has finished utteranceprogresslistener (or onutterancecompletetlistener < api 15. depends on api developing):

   //first set hashmap tts    hashmap<string, string> ttsparameters = new hashmap<string, string>();    ttsparameters.put(texttospeech.engine.key_param_utterance_id,"stringid");    tts.speak("say hello",texttospeech.queue_flush, ttsparameters );

set onutteranceprogresslistener:

   int result = tts.setonutteranceprogresslistener(new utteranceprogresslistener()         {             @override             public void ondone(string utteranceid)             {                 //here set volume             }              @override             public void onerror(string utteranceid)             {                 //also, set volume             }              @override             public void onstart(string utteranceid)             {                // set volume max             }         });

edit

and api < 15:

   tts.setonutterancecompletedlistener(new onutterancecompletedlistener() {      @override     public void onutterancecompleted(string utteranceid) {          //set volume     }    });

to find out version installed:

   if (android.os.build.version.sdk_int >=8){       }

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