Question

I am making a game for android which needs to play a small beep whenever a user touches a certain object.

To do this I have this simple code to create the media player. beep is a small .ogg file of ~1.5 sec length.

MediaPlayer mp = MediaPlayer.create(getContext(), R.raw.beep);
mp.setVolume(0.5f, 0.5f);

and use it like this

mp.start();

The problem I am having is that my game uses the android canvas, and the thread which draws to the canvas also calls mp.start(). I have discovered that playing the sound is taking quite a lot of time, and it is very varied in how long it takes. Sometimes 1ms, sometimes 15ms. This appears to be causing my game to noticeably lag a little bit, as the android canvas is pretty slow anyway.

I’ve had a look at the logs and I don’t appear to having garbage collection causing the delay. I’m wondering if anyone can give me some advice to reduce this delay

EDIT – I’ve just discovered that MediaPlayer is designed for longer sound files, and SoundPool is better for shorter audio files. However, I load the file into the mediaPlayer only once, so I don’t see how it should make any difference. I will test it out though

Answer 1

sorry for my english

Use SoundPool instead of MediaPlayer cause MediaPlayer need releasing memory after each call or call method mp.release() after each call of player

SoundPool tutorial here