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POandroid environmentalreverb doesn't do anything
 

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  1. POandroid environmentalreverb doesn't do anything
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    <p>I'm trying to apply a reverb effect to a sine wave that I'm generating using AudioTrack. I tried presetReverb and applied it to audiosession 0 like the docs said, since doing the getAudioSessionId() method brought an error, but that didn't apply a reverb at all. So I tried EnvironmentalReverb and tried audiosession 0, and also using getAudioSessionId(), both of which didn't create a reverb.</p> <p>Here's my code:</p> <pre><code>t = new Thread() { public void run() { setPriority(Thread.MAX_PRIORITY); int buffsize = AudioTrack.getMinBufferSize(sr, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT); AudioTrack audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sr, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT, buffsize, AudioTrack.MODE_STREAM); EnvironmentalReverb reverb = new EnvironmentalReverb(1,0); audioTrack.attachAuxEffect(reverb.getId()); reverb.setDiffusion((short) 1000); reverb.setReverbLevel((short) 1000); reverb.setDecayTime(10000); reverb.setReverbDelay(100); reverb.setDensity((short) 1000); audioTrack.setAuxEffectSendLevel(1.0f); reverb.setEnabled(true); short samples[] = new short[buffsize]; int amp = 32767; double twopi = 2*Math.PI; double fr = 262.f; double ph = 0.0; audioTrack.play(); while(isRunning) { fr = 262; for(int i=0; i &lt; buffsize; i++) { samples[i] = (short) (amp*Math.sin(ph)); ph += twopi*fr/sr; } audioTrack.write(samples, 0, buffsize); } audioTrack.stop(); audioTrack.release(); } }; t.start(); </code></pre> <p>I have the modify audio settings permission in my manifest, so why doesn't this create the reverb effect?</p>
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    1. COI know this question has been asked before, and no one answered it after five months, so I thought I'd ask it again, since I am having the same problem. Is no one going to answer this question?
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