Re: How to do stereo?
Re: How to do stereo?
- Subject: Re: How to do stereo?
- From: Bill Stewart <email@hidden>
- Date: Thu, 17 Oct 2002 11:00:51 -0700
on 17/10/02 7:03 AM, Ben Dyer wrote:
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Hi All!,
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Well I'm at the stage now where I've ported a VST plug-in to AU and the
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right noises are
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coming out. It's a music device (soft synth).
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I'm slightly confused about rendering in stereo. So, I have some
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questions for you good people out there ..
Simple:)
You use one bus on output, but that bus has two channels of
mono-deinterleaved data in them (the cannonical format of the V2 unit)
So, as a synth you're generatnig output buffers... You have the single
AudioBufferList for the single bus that you output:
That BufferList has two AudioBuffers in it (one for each channel) - first
buffer is left, second right.
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1) Should a stereo AU have two outputs or a single interleaved out? As
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far as I can see interleaved is for V1 not V2?
That's true...
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2) When I instantiate an AU with nOutputs set to 2 it still shows up in
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Logic 5.4 as a mono AU what else needs to be done?
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Set the properties of the audio stream?
Logic is only looking for a single output bus, but that bus can carry
multiple channels of data
Bill
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Any examples would be much appreciated.
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Thanks very much,
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Ben.
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