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Re: Resampling

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Re: Resampling

Subject: Re: Resampling
From: Jens Alfke <email@hidden>
Date: Fri, 13 Mar 2009 11:30:44 -0700


On Mar 13, 2009, at 11:18 AM, email@hidden wrote:

If the device has a 44.1KHz sampling rate, and I want to play 16KHz audio (a WAVE file), the number of frames from the audio file that I need to convert for each callback is not an integer (because 44100/16000 is not a whole number). How do I deal with this problem?

You should probably be letting an AudioConverter do the sample-rate conversion for you. I don't know the details; but I have been told by those who do, that the interpolation isn't as straightforward as you'd think.

Even better, use ExtAudioFile, which will do all the I/O, format decoding, and conversion to any sample rate you want.

—Jens _______________________________________________
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