Android is the fastest way to download and play sound in an application

Question

I am working on a project in which I have to load 6 different sounds in one action and play all the sound at the click of a button. The sound file is not so big, but the problem is that maybe they will be more. So my question is what is the fastest way to load sound files into one asset. For testing purposes, I used a res / raw folder for storing audio files and tried using two different ways to play the files, but the result did not satisfy me. Here are two different types of code:

Method 1:

Button first = (Button) findViewById(R.id.one); Button second = (Button) findViewById(R.id.two); first.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { MediaPlayer mp = MediaPlayer.create(SoundFXActivity.this, R.raw.drumtwo); mp.start(); mp.setOnCompletionListener(new OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { // TODO Auto-generated method stub mp.release(); } }); } }); second.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { MediaPlayer mp = MediaPlayer.create(SoundFXActivity.this, R.raw.drumone); mp.start(); mp.setOnCompletionListener(new OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { // TODO Auto-generated method stub mp.release(); } }); } }); 

Method 2:

  private SoundPool spool; private int soundID,soundID2; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); this.setVolumeControlStream(AudioManager.STREAM_MUSIC); spool = new SoundPool(10, AudioManager.STREAM_MUSIC, 0); soundID = spool.load(this, R.raw.drumone, 1); soundID2 = spool.load(this, R.raw.drumtwo, 1); Button three = (Button) findViewById(R.id.three); three.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Sound(); } }); } public void Sound(){ AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE); float volume = (float) audioManager.getStreamVolume(AudioManager.STREAM_MUSIC); spool.play(soundID, volume, volume, 1, 0, 1f); }; 

But the problem is that both methods are slow. I need to find a way for a faster way to play sounds ... but now, like after almost a second, I press a button to play the sound.

Can you give me some tips on how to play sounda faster. Should I load them into the cache when the application starts or saves them in a database or somewhere else (I don't think the database is a good option as a fact, but I want to hear some suggestions). Maybe download them from the resources folder, but I think it will still be slow.

So any ideas or suggestions? Thanks in advance!

Answer 1

You can create media players in your onCreate , and then the buttons just make them play. I would say that would be the easiest solution.

Alternatively, depending on how important it is for you and how much work you want to do, you can use JetPlayer:

here is the Android development page for the media:
http://developer.android.com/guide/topics/media/index.html

Page in the JetPlayer class:
http://developer.android.com/reference/android/media/JetPlayer.html

and the page for creating JET files:
http://developer.android.com/guide/topics/media/jet/jetcreator_manual.html

If you implemented this, it will most likely work best, but it will certainly work more.

JetPlayer basically lets you have one audio file (I think it's a MIDI file) with several tracks that you turn off and on as you please. I have no personal experience and I just read some documents, but it looks like it would be very useful for any situation with more than one sound.

Edit: It is also worth mentioning this mailing list if the link ever modifies this google search in case anyone is interested in Android themes.

Answer 2

If you want to have less latency, you should use OpenSL in C ++, From jelly bean is a faster sound player

Answer 3

SoundPool is working fine, you can see an example with the Hexiano project. However, you must preload the sounds into SoundPool because it takes a long time to decode the file and store them in memory before you can use them. But as soon as sounds are loaded, there is no noticeable delay between pressing a key and the sound output.