Would someone provide some guidance on how you can take an audio file and speed it up without changing the pitch. I was working yesterday and I added AVAudioUnitVarispeed unit to my engine and increased the speed by 2. It worked, however I found output to have the chipmunk sound. Would you use a AVAudioUnitTimePitch unit to lower the pitch to compensate or is there a better way to achieve this outcome?
I would like to increase the speed by more than a rate of 2. Is there a reason why I couldn't daisy chain two AVAudioUnitVarispeed units together? Lastly, is there a way to know how many audio frames were produced after the effect completed. Since I have a change in time, the number of frames coming in are not the same number going out. Thank you, W.
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