并再次的Soundpool关于内存的问题 [英] and again about memory issues with SoundPool
问题描述
我知道的Soundpool旨在处理小FX一样的声音，我确信，我想一定顺序播放一个个都足够小我4声音剪辑。
I am aware that SoundPool was intended to handle small fx like sounds and I made sure my 4 sound clips which I want to play one by one in some sequence are small enough.
我用OGG质量0和剪辑是35KB，14KB，21KB和23KB共计COM pressed音频92KB。我不知道如何来估计uncom pressed大小会是什么，但它不应该有很多吧？
I used ogg quality 0 and clips are 35kb, 14kb, 21kb and 23kb totaling 92kb of compressed audio. I have no idea how to estimate what the uncompressed size would be, but it should not be a lot, right?
所以，当我按顺序播放4的声音，它可以很好地用于第9次（9序列×4的声音），但开始引起对声音的一个花枝招展序列内存问题。它始终是序列9时，我开始看到错误。
So when I play 4 sounds in sequence, it works well for first 9 times (9 sequences x 4 sounds) but starts to cause memory issues on the nines sequence for one of the sounds. It is always sequence 9 when I start to see error.
什么是处理，最好的方法是什么？我有几个想法：
What is the best way to handle that? I have a few ideas:
1）COM preSS的声音就更（OGG质量-1和单声道，而不是立体声）
1) compress sounds even more (ogg quality -1 and mono instead of stereo)
2）卸载和装载声音不断采用SoundPool.load和SoundPool.unload
2) unload and load sounds constantly using SoundPool.load and SoundPool.unload
3）释放和不时重建的Soundpool实例时
3) release and recreate soundPool instance time from time
还有什么我能做什么？这是令人尴尬的是Android的API无法处理这么小的片段。我不知道人们如何创造了很多的声音效果游戏...
Is there anything else I can do? It is embarrassing that android api cannot handle so small clips. I wonder how people create games with a lot of sound effects...
错误看起来像：
ERROR / AudioFlinger（35）：没有足够的内存AudioTrack大小= 1048640
DEBUG / MemoryDealer（35）：AudioTrack（0x25018，大小= 1048576）
ERROR/AudioFlinger(35): not enough memory for AudioTrack size=1048640 DEBUG/MemoryDealer(35): AudioTrack (0x25018,size=1048576)
推荐答案
看来我还是能后解决我的问题：
It seems I was able to resolve my issue after:
1）下采样我的声音剪辑，从44到22kHz的。 Uncom pressed大小减少了一半（我想通了如何估算uncom pressed声音大小 - 您的剪辑导出到uncom pressed WAV）。我用漂亮的开源工具无畏
1) downsampled my sound clips from 44 to 22khz. Uncompressed size was cut in half (I figured how to estimate uncompressed sound size - export your clip to uncompressed wav). I used nice open source tool Audacity
2）修剪声音更加减少持续时间
2) trim the sounds more to reduce duration
3）把try /周围追赶（）以防万一（它捕获错误时，尝试播放声音，但不能）
3) put try/catch around play() just in case (it does catch errors when it try to play the sound but cannot)
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