Develop Reference

Play sound with my volume settings

I'm developing an app that plays some sound according to specific intervals. And I'm letting the user control those sounds volume levels. Tell now it's OK and the sound volume level is as the user selected before. But the problem here that the device volume levels changed too.
The QUESTION is: How to play my sounds at my volume level without affecting the device sound levels?
defaultSharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
AudioManager mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
int streamMaxVolume = mAudioManager.getStreamMaxVolume(3);
vol = defaultSharedPreferences.getInt("vol_one", streamMaxVolume);
mAudioManager.setStreamVolume(3, vol, 0);
playsound();
Update: according to Biraj solution
to get the max allowed volume for each device use the int streamMaxVolume instead of the MAX_VOLUME variable.
so the full answer is:
AudioManager mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
int streamMaxVolume = mAudioManager.getStreamMaxVolume(3);
vol = defaultSharedPreferences.getInt("vol_one", streamMaxVolume);
setVolume(vol);
*
*
*
public void setVolume(int soundVolume){
final float volume = (float) (1 - (Math.log(streamMaxVolume- soundVolume) / Math.log(streamMaxVolume)));
mediaPlayer.setVolume(volume, volume);
}

Don't use AudioManager to setVolume. Use MediaPlayer.setVoume()
private final static int MAX_VOLUME = 100;
public void setVolume(int soundVolume){
final float volume = (float) (1 - (Math.log(MAX_VOLUME - soundVolume) / Math.log(MAX_VOLUME)));
mediaPlayer.setVolume(volume, volume);
}
EXPLANATION :
setVolume (float leftVolume, float rightVolume)
Sets the volume on this player. This API is recommended for balancing the output of audio streams within an application. Unless you are writing an application to control user settings, this API should be used in preference to setStreamVolume(int, int, int) which sets the volume of ALL streams of a particular type. Note that the passed volume values are raw scalars in range 0.0 to 1.0. UI controls should be scaled logarithmically.
Parameters
leftVolume left volume scalar
rightVolume right volume scalar
For more information visit HERE

SoundPool play not working

I'm trying to play a .mp3 sound from my raw folder, but somehow the sound doesn't play. The code does execute the play method but it doesn't produce sound. Here's my code:
public SoundPlayer(Context context) {
this.context = context;
AudioManager audioManager = (AudioManager) context.getSystemService(Service.AUDIO_SERVICE);
soundPool = new SoundPool(3, AudioManager.STREAM_MUSIC, 0);
clickId = soundPool.load(context, R.raw.bubbleclick, -1);
errId = soundPool.load(context, R.raw.bubbleclickerror, 1);
countId = soundPool.load(context, R.raw.countdowntick, 1);
float actualVolume = (float) audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
float maxVolume = (float) audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
volume = actualVolume / maxVolume;
}
public void playBubbleClick() {
if (!isMuted()) {
soundPool.play(clickId, volume, volume, 1, 0, 1);
}
}
I first instantiate the SoundPlayer class (custom class), and then call playBubbleClick()

I didn't solve the issue but I worked around it by calling the play method in the onLoad event (when setting an onLoadListener). This does solve it, but still shouldn't be the way it is done.

Set volume to max in Android [duplicate]

This question already has answers here:
Android: how to play music at maximum possible volume?
(5 answers)
Closed 9 years ago.
In my app, I am trying to set the volume when playing an audio clip to the maximum level but it doesn't appear to have any affect. I have to manually adjust the volume to the maximum level. Here's my code:
MediaPlayer mp = new MediaPlayer();
mp.setVolume(1, 1);

AudioManager
int origionalVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, mAudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC), 0);

Use This
it s for total volume
AudioManager mgr = (AudioManager) appContext.getSystemService(Context.AUDIO_SERVICE);
int valuess = 9;//range(0-15)
mgr.setStreamVolume(AudioManager.STREAM_MUSIC, valuess, 0);
it is for left right while current song is playing...
AudioTrack m = (AudioTrack) appContext.getSystemService(Context.AUDIO_SERVICE);
m.setStereoVolume(leftVolume, rightVolume);
it works for me.

Using AudioManager you can control the volume of media player.
AudioManager audioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 20, 0);
also from MediaPlayer
public void setVolume (float leftVolume, float rightVolume)
for example you can use this method as,
int maxVolume = 100;
float log1=(float)(Math.log(maxVolume-currVolume)/Math.log(maxVolume));
mp.setVolume(1-log1);

Soundpool plays only first 5 secs of file. Why?

I use Soundpool in my app, so far it works good, but I do have a wav file which is 10 secs. Unfortunately, soundpool plays only the first 5 secs. How to make soundpool to play the whole track? I have converted wav to -- ogg and mp3 still the same issue. It plays only the first 5 secs. Any help would be much appreciated.
//set up audio player
mSoundPool = new SoundPool(20, AudioManager.STREAM_MUSIC, 0);
//load fx
mSoundPoolMap.put(RAW_1_1, mSoundPool.load(this, R.raw.loop1, 1));
//playing soundpool
case R.id.button1:
mSoundPool.stop(mStream1);
mStream1= mSoundPool.play(mSoundPoolMap.get(RAW_1_1), streamVolume, streamVolume, 1, LOOP_1_TIME, 1f);
UPD Last: Maybe someone will find it here and read it. Seems soundpool cant play more then 5 secs. It is his maximum, for more longer sounds use MediaPlayer. I hope you will not spend so much of your time like i did)

So I think you reached the 1M limit in SoundPool.
SoundPool is hard code the buffer size as 1M, for all loaded file, store in pcm format.
So it do not care of ogg or wav.

We have solved similar problem by decreasing in our *.ogg effects sample rate. Our initial sample rate was 44 kHz ~ and only 10 sec of sound played, decreasing to 16 kHz increase playability to 30 seconds
Solution was found in this discussion

SoundPool designed to play short sound effects. To play music (big audio files) you need to use MediaPlayer
// R.raw.audio_file - res/raw/audio_file.mp3
mediaPlayer = MediaPlayer.create(this, R.raw.audio_file);
mediaPlayer.start();

This activity is works for me
public class MainActivity extends Activity {
private Integer soundID;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.setVolumeControlStream(AudioManager.STREAM_MUSIC);
// Load the sound
AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
float actualVolume = (float) audioManager
.getStreamVolume(AudioManager.STREAM_MUSIC);
float maxVolume = (float) audioManager
.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
final float volume = actualVolume / maxVolume;
SoundPool soundPool = new SoundPool(10, AudioManager.STREAM_MUSIC, 0);
soundPool.setOnLoadCompleteListener(new OnLoadCompleteListener() {
#Override
public void onLoadComplete(SoundPool soundPool, int sampleId,
int status) {
#Override
public void onLoadComplete(SoundPool soundPool, int sampleId,
int status) {
soundPool.play(soundID, volume, volume, 1, 0, 1f);
try {
Thread.sleep(5000); // play twice
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
soundPool.play(soundID, volume, volume, 1, 0, 1f);
}
});
}
});
soundID = soundPool.load(this, R.raw.sound2, 1);
//load fx
//playing soundpool
}
}
You must load you sound asynchrony and check audio cache - it can be overflow.
Read this article
http://www.google.by/url?http://www.vogella.com/articles/AndroidMedia/article.html
Its very heedful

Your file is probably too large. Try to change from stereo to mono, if you do not need stereo anyway.
Or try to downsample your file.
Reducing the filesice worked in my case.

Android play music in a random amount of time

Now I can play a music in android. But I want to play this sound in a random amount of time between 2 to 8 seconds.How Can I randomly play it that for example the first time, it plays for 2 seconds, the next time 7 sec and so on? Can anybody help me?

Go through these links:
Random number Generation
Media Player
Timer
you will get an idea.

Sound in android is played like this :
AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
int mSoundID = mSoundPool.load(this, R.raw.sound1, 1);
float lActualVolume = (float) audioManager
.getStreamVolume(AudioManager.STREAM_MUSIC);
float lMaxVolume = (float) audioManager
.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
float lVolume = lActualVolume / lMaxVolume;
// Is the sound loaded already?
if (mSoundIsLoaded) {
mSoundPool.play(mSoundID, lVolume, lVolume, 1, 0, 1f);
I think you have been given plenty of help to figure the random number part out.
You will have to put the sound file in your assets/raw directory.
edit:
I forgot to mention where the mSoundIsLoaded parameter came from.
I set it when my sound has been loaded. I do this in my onCreate method. when the sound is loaded I set the boolean field called mSoundIsLoaded. I do this to prevent NullPointerExceptions when playing the sound
the loading of the sound looks like this:
mSoundPool = new SoundPool(10, AudioManager.STREAM_MUSIC, 0);
mSoundPool.setOnLoadCompleteListener(new OnLoadCompleteListener() {
#Override
public void onLoadComplete(SoundPool soundPool, int sampleId,
int status) {
mSoundIsLoaded = true;
}
});
mSoundID = mSoundPool.load(this, R.raw.sound1, 1);