Reverb Algorithm [closed]

Answer 1

You can use GVerb. Get the code from here.GVerb is a LADSPA plug-in, you can go here if you want to know something about LADSPA.

Here is the wiki for GVerb , including explaining of the parameters and some instant reverb settings.

Also we can use it directly in Objc:

ty_gverb        *_verb;
_verb = gverb_new(16000.f, 41.f, 40.0f, 7.0f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f);
AudioSampleType *samples = (AudioSampleType*)dataBuffer.mBuffers[0].mData;//Audio Data from AudioUnit Render or ExtAuidoFileReader
float lval,rval;
for (int i = 0; i< fileLengthFrames; i++) {
     float value = (float)samples[i] / 32768.f;//from SInt16 to float
     gverb_do(_verb, value, &lval, &rval);
     samples[i] =  (SInt16)(lval * 32767.f);//float to SInt16
}

GVerb is a mono effect but if you want a stereo effect you could run each channel through the effect separately and then pan and mix the processed signals with the dry signals as required