soundpool

问题 I'm creating an Android app that involves multiple short sound clips. At the moment, I'm using SoundPool to load my sound clips once a 2nd activity is begun by the menu activity. The problem I seem to be having is that once this secondary activity begins, the loading of the sound clips causes multiple heap size overflows and then after a bit the activity actually loads (the emulator never gives an error or a force quit). Would using the MediaPlayer help me here and keep these heap size

问题 When using Android soundpool/audioTrack, I keep getting the following error: AudioFlinger could not create track, status: -12 Error creating AudioTrack Can anyone explain what -12 is? Is it the value of some enum from the source code? I've seen other questions that deal with error -12 but nowhere conclusively do I see what that constant actually stands for. Does someone know the list of the possible statuses for AudioFlinger? I've also seen error -22 around, but I don't know what that means

问题 I setup my SoundPool , and load a sound resource as this in onCreate() : soundPool = new SoundPool(4, AudioManager.STREAM_MUSIC, 0); soundId = soundPool.load(this, R.raw.edible_underwear, 1); And then I try to play this sound twice in a onClick() , one slow mostly in left speaker, and one fast mostly in the right speaker: soundPool.play(soundId, 0.9f, 0.1f, 0, -1, 0.7f); soundPool.play(soundId, 0.1f, 0.1f, 0, -1, 1.5f); No sound can be heard. I have fiddled with the volumes, priorities and

问题 Please, have a look at those pieces of code: private SoundPool soundPool; private int soundID; soundPool = new SoundPool(10, AudioManager.STREAM_MUSIC, 0); soundID = soundPool.load(this, R.raw.batimanbailedosenxutos, 1); and when I press the button: soundPool.play(soundID, volume, volume, 1, 0, 1f); if I press this button twice in the same time, it plays the sound togheter, I want to stop the sound and play again if the user press the button while playing I tryed puting an soundPool.stop

问题 I am trying to load a sound from android. The sound is under res/raw/myownsound.wav . I know that I can already load the sound using: soundPool.load(context, R.raw.myownsound, 1) For customization purposes, I would like to load it using: soundPool.load("res/raw/myownsound", 1) ... but I get the following error : error loading res/raw/myownsound . I also tried the following : soundPool.loadSound("android.resource://upg.GraphismeBase/raw/myownsound", 1) .. but I get an error as well : error

问题 I am trying to load a sound from android. The sound is under res/raw/myownsound.wav . I know that I can already load the sound using: soundPool.load(context, R.raw.myownsound, 1) For customization purposes, I would like to load it using: soundPool.load("res/raw/myownsound", 1) ... but I get the following error : error loading res/raw/myownsound . I also tried the following : soundPool.loadSound("android.resource://upg.GraphismeBase/raw/myownsound", 1) .. but I get an error as well : error

问题 Is it possible to record the internal sound generated by the app? My app allows you to create and play back musical sequences. soundPool.play(soundIds[i], 1f, 1f, 1, 0, Constants.TIME_RATE); I'd like to be able to record the sequence and export to mp3. I've looked into Audio Capture but setAudioSource (int audio_source) only seems to accept MIC recording. Thanks 回答1: No, there's no API for getting the audio output, even for your own app (actually that's not entirely true, because you can get

问题 I'm trying to develop an Android aplication that uses some sounds and mix them together for creating music compositions. At the beggining I tried just to reproduce sounds at the same time, but when I was doing that, they got disinchronized, and after several hours reading forums I realized that the best way to reproduce several sounds at the same time in loop mode is just to merge the audio files in one and then reproduce them as a single file. Here is the code I'm using: //Oppening file 1

问题 I've built a simple music sequencer Android app that plays multiple audio files. Originally I was using SoundPool to play mp3 files and it worked perfectly on 2.3.4 with an old HTC Droid Incredible. Then I tested it on a Galaxy Nexus running 4.3 and the performance was horrendous. The audio timing all over the place and there were glitches/clicks/pops. So I spent several days making a player using AudioTrack including an mp3 decoder and got it working perfectly on both the Galaxy and the HTC.

问题 I'm having troubles with the soundpool class. Here it goes: In my game app (music app btw) I need to reproduce at least 32 short sounds at the same time, so I declare my soundpool like that: private SoundPool sp; sp = new SoundPool(128, AudioManager.STREAM_MUSIC, 0); After that I load all the MP3 sounds needed, about 80 sound of 55KB each. I have no troubles loading all the sounds, but its slow! Well it's no the problem. The real trouble is when I play about 20 sounds at the same time, there