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Re: AU output buses
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Re: AU output buses


  • Subject: Re: AU output buses
  • From: Robert Grant <email@hidden>
  • Date: Wed, 12 Nov 2003 08:04:25 -0500

Hi Urs,

Thanks for that clarification - but I think the problem may be on both sides... I'm sure I read that the bus specified in the kAudioUnitProperty_SetRenderCallback was the output bus but now everything is pointing to it being the input bus - which makes more sense. I probably got tangled between the callback proc and the AudioUnitRender proc - their APIs are very similar.

However - I've now switched over to the "right" way of doing it. And I'm using a different AUInstrument (PhatMATIK Pro) which has 8 output buses. But now if I connect any of the additional buses I get an AudioUnitRender error of -1. Connecting Bus 0 works just fine....

-1 seems like a pretty fundamental error - but I'm not sure what it means...

Robert.


On Nov 12, 2003, at 2:39 AM, Urs Heckmann wrote:


Am Mittwoch, 12.11.03, um 02:40 Uhr (Europe/Berlin) schrieb Robert Grant:
Zebra (for example) is returning 2 buses but if I try to connect bus 1 (the second bus) to the mixer I get kAudioUnitErr_InvalidElement. And most AU instruments are returning more than one output bus.

Sorry, I had it set to 1, but then, after having difficulties with Input, I tried 2 and forgot setting it back.

Since Zebra doesn't make use of busses, the next release will have 1 bus only again.

What am I missing?

Nothing. You are correct, I (we?) were wrong.

Cheers,

;) Urs

urs heckmann
email@hidden
www.u-he.com <- Zebra Audio Unit comming soon
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References: 
 >Re: AU output buses (From: Urs Heckmann <email@hidden>)

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