Removing Last Buffer Played From Memory

Question

I have an Objective-C audio app based on audio unit and my problem is when I play a sound then stop it then play another sound I hear the last buffer from the first sound. I think I should just free the ioData or something but all my tries have failed.

static OSStatus playbackCallback(void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames,  AudioBufferList *ioData)
{
    RemoteIOPlayer *remoteIOplayer = (__bridge RemoteIOPlayer *)inRefCon;

    for (int i = 0 ; i < ioData->mNumberBuffers; i++)
    {
        AudioBuffer buffer = ioData->mBuffers[i];
        UInt32 *frameBuffer = buffer.mData;

        for (int j = 0; j < inNumberFrames; j++)
        {
             frameBuffer[j]= [[remoteIOplayer inMemoryAudioFile] getNextPacket:inBusNumber];
        }
    }
    return noErr;
}

Please help :) Thanks.

score 0 · Accepted Answer · answered Jun 13 '12 at 12:47

0

Ok its just about UNintializing the augraph and initializing it again after the user stops

answered Jun 13 '12 at 12:47

Moataz Hossam

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Removing Last Buffer Played From Memory

1 Answers1