Re: audioqueue change sample rate
Re: audioqueue change sample rate
- Subject: Re: audioqueue change sample rate
- From: tahome izwah <email@hidden>
- Date: Sat, 14 May 2011 15:46:42 +0200
You could use their EAFRead class for this. It takes an output sample
rate and handles the conversion internally. It doesn't use Dirac so
you should be able to use it rightaway.
Let me know if you need any help, I've used their code in my own
projects so I think I can help.
--th
2011/5/14 Robert Carroll <email@hidden>:
> Thanks for your reply.
> The Dirac material looks impressive. Unfortunately, I need to process stereo
> source files (phase-locked) which falls outside of their free version.
> I'm just looking for a static pitch change. It could be done off-line if the
> process is fast enough, but my preference would be to be able to change to
> sample rate of the audioqueue in the context of my existing code. Currently
> I'm doing this with time-scaling the audio segment in Quicktime, but the
> whole point of moving into audioqueue was to avoid further use of Quicktime.
> rob
>
> On May 13, 2011, at 3:04 PM, email@hidden wrote:
>
> Not sure if this helps but the DiracLE SDK has a varispeed example in
> the iOS realtime example folder: http://dirac.dspdimension.com
>
> If you don't need full scale time stretching but just a SRC pitch
> change you can simply use their EAFRead class which takes an output
> sample rate parameter...
>
> HTH
> --th
>
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