Increasing speed without increasing pitch
Increasing speed without increasing pitch
- Subject: Increasing speed without increasing pitch
- From: Waverly Edwards <email@hidden>
- Date: Fri, 18 Aug 2017 12:41:19 +0000
- Thread-topic: Increasing speed without increasing pitch
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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