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Re: Audio Buffers
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Re: Audio Buffers


  • Subject: Re: Audio Buffers
  • From: Daniel Todd Currie <email@hidden>
  • Date: Fri, 10 Oct 2003 17:47:36 -0700

Ok, so I have this audio buffer and I need to convert it to a double array to read it into my FFT. I know that most of you know the answer to this, and it's not listed anywhere in the docs, so please just take 30 seconds to help me out... All I need is to convert an Audio Buffer into a double array. Thanks.

// Daniel Currie


Message: 2
Date: Tue, 7 Oct 2003 04:28:22 -0700
Subject: Audio Buffers
From: Daniel Todd Currie <email@hidden>
To: email@hidden

Hi, I'm new to this, so I hope you don't mine some newbie questions...

I've just finished setting up an audio recorder, based on Kurt Revis's
example on the CoreAudio Swiki
(http://www.mat.ucsb.edu:8000/CoreAudio/13). In the IOProc I end up
with an AudioBufferList, inInputData. So I guess I can get the buffer
by using inInputData and mBuffers[0], and then I want to get the mData
from the buffer, I think... Would &inInputData->mBuffers[0].mData be
the right syntax? What sort of format is this data in? Can I just
read it into an NSData object? NSArray?

Thanks in advance for your help/time.

// Daniel Currie
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