Re: [iphone] audio units connecting to multi-mixer
Re: [iphone] audio units connecting to multi-mixer
- Subject: Re: [iphone] audio units connecting to multi-mixer
- From: Doug Wyatt <email@hidden>
- Date: Wed, 27 Jan 2010 09:02:47 -0800
On Jan 27, 2010, at 2:45 , steph ohara wrote:
> when each gen is connected on its own, all is well. but when both are connected the audio is corrupted, a little bit like ring-modulation, distortion.
>
> CAShow :
> Member Nodes:
> node 1: 'auou' 'rioc' 'appl', instance 0x3c22b90 O I
> node 2: 'aumx' 'mcmx' 'appl', instance 0x3c24600 O I
> node 3: 'aumx' 'mcmx' 'appl', instance 0x3c249e0 O I
> node 4: 'aumx' 'mcmx' 'appl', instance 0x3c249c0 O I
> Connections:
> node 2 bus 0 => node 1 bus 0 [2 ch, 44100 Hz]
> node 3 bus 0 => node 2 bus 0 [2 ch, 44100 Hz]
> node 4 bus 0 => node 2 bus 1 [2 ch, 44100 Hz]
> Input Callbacks:
> {0x3a52, 0x3c24430} => node 3 bus 0 [2 ch, 44100 Hz]
> {0x3a52, 0x3c24580} => node 4 bus 0 [2 ch, 44100 Hz]
>
> is this the correct way to connect everything up? what are the likely causes of the problem?
Usually these kinds of corruptions are due to a format mismatch somewhere. int 16 and 8.24 fixed have enough bits in common that the original signal will be discernable.
Ideally CAShow would show the bit depths so we could see this immediately if it were the case.
What formats are you specifying when setting everything up? If you change the submixers' outputs from int16 to 8.24 or back, does it change the behavior?
Doug
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