I used it for my game and it works on both the emulator and a real
G1. Just follow my example.
On Oct 14, 4:07 pm, TjerkW <[EMAIL PROTECTED]> wrote:
> I also wanted to use the soundpool, but lack of documentation made it
> impossible to use.
> I tried it they way i would think it would work, but it didn't.
>
> I am using mediaplayers now, i cannot play the same sound multiple
> times concurrently, Too bad.
>
> On 12 okt, 19:32, Robert Green <[EMAIL PROTECTED]> wrote:
>
> > I have a few more comments on this class.
>
> > 1) Is it going to be officially supported?
>
> > 2) Here are some problems I've found with it and workarounds I used:
>
> > Bug #1) Looping an mp3 crashes around the 8th loop but looping waves
> > seems to work fine.
> > Bug #2) SoundPool.stop(streamId) immediately crashes the app.
> > Bug #3) setRate() with a rate over 1.5 either doesn't work or also
> > crashes the VM with no exception.
>
> > My new workaround for lack of stop():
>
> > to stop a stream, call setLoop(streamId, 0) then setVolume(streamId,
> > 0f, 0f). This will stop a loop after it's done but drop the volume so
> > it seems to the user to have quit right then. After that, you don't
> > need to call stop() because the stream will clean itself up from the
> > loop stopping. This worked for me.
>
> > Even if they haven't readied it for public use, it's the only suitable
> > API forsoundin games. I looked into using MediaPlayers but if you
> > have more than a couple of sounds and you need to be able to play the
> > samesounda few times concurrently, it's just not a feasible
> > solution.
>
> > I'm really surprised that there is no access to the audio buffer. How
> > are we supposed to write dynamic audio generation apps?
>
> > Androidreally needs 2 things to be competitive with the audio side:
>
> > 1) Public access to the media decoders (so a dev can decode an mp3
> > into raw)
> > 2) Public access to asoundstream output buffer (so a dev can pipe in
> > rawsounddata)
>
> > On Oct 11, 5:30 pm, Robert Green <[EMAIL PROTECTED]> wrote:
>
> > > Problem solved. Here's how I did it:
>
> > > This only loads onesoundbut you can load as many as you want. I have
> > > an mp3 in my res/raw directory called explosion.mp3.
>
> > > Java:
>
> > > public static final int SOUND_EXPLOSION = 1;
> > > public static final int SOUND_YOU_WIN = 2;
> > > public static final int SOUND_YOU_LOSE = 3;
>
> > > private SoundPool soundPool;
> > > private HashMap<Integer, Integer> soundPoolMap;
>
> > > private void initSounds() {
> > > soundPool = new SoundPool(4, AudioManager.STREAM_MUSIC,
> > > 100);
> > > soundPoolMap = new HashMap<Integer, Integer>();
> > > soundPoolMap.put(SOUND_EXPLOSION,
> > > soundPool.load(getContext(), R.raw.explosion, 1));
> > > }
>
> > > public void playSound(intsound) {
> > > AudioManager mgr = (AudioManager)
> > > getContext().getSystemService(Context.AUDIO_SERVICE);
> > > int streamVolume =
> > > mgr.getStreamVolume(AudioManager.STREAM_MUSIC);
> > > soundPool.play(soundPoolMap.get(sound), streamVolume,
> > > streamVolume, 1, 0, 1f);
> > > }
>
> > > public void update() {
> > > if (isExploding()) {
> > > playSound(SOUND_EXPLOSION);
> > > }
> > > }
>
> > > On Oct 11, 12:11 pm, Robert Green <[EMAIL PROTECTED]> wrote:
>
> > > > I'm addingsoundinto my game now and need the ability to havesound
> > > > effects concurrent (like 2 of the same explosion playing at the same
> > > > time, etc) so using the MediaPlayer is less than optimal for me. I was
> > > > thinking of just adding a traditionalsoundupdate into the main loop
> > > > which would probably work and isn't _that_ hard to write but I don't
> > > > think I have access to the decoder andsoundbuffer.
>
> > > > I found a class called SoundPool that appears to be suited for exactly
> > > > what I'm trying to do however the documentation is very weak
> > > > -http://code.google.com/android/reference/android/media/SoundPool.html
>
> > > > Has anyone used this with success? If so, could I see a little code
> > > > snippet?
>
> > > > I tried this:
> > > > Java:
>
> > > > private void initSounds() {
> > > > // 4 streams
> > > > // stream type 3 is music
> > > > soundPool = new SoundPool(4, 3, 100);
> > > > int explosionSound = soundPool.load(getContext(),
> > > > R.raw.explosion, 1);
> > > > soundPool.play(explosionSound, 100, 100, 1, 0, 1);
> > > > }
>
> > > > but it didn't appear to do anything. I didn't get errors but I also
> > > > heard nosound. Perhaps I need to configure something for the emulator
> > > > to work like that?
>
>
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