Re: Audio Input with HALOutputUnit
Re: Audio Input with HALOutputUnit
- Subject: Re: Audio Input with HALOutputUnit
- From: Robert Grant <email@hidden>
- Date: Sun, 13 Jun 2004 13:49:26 -0400
Hi James,
On Jun 13, 2004, at 1:38 PM, James Coker wrote:
MOTU 868 MkII is just giving input on channels 1 & 2 - the others are
all dead.
You mean the 828 MkII, right?
Yeah - d'oh!
It works fine for me (in Numerology), but your description of only
seeing 2 channels
looks familiar. Looking at the code, I see that I check the number of
channels on
the stream format of the Input side of bus 1 of the HAL Output Unit to
see how many channels
the device has, then SET the stream format on bus 1 of the Output side
of the HAL Output
Unit to that number of channels. The default number of channels on
the Output side
of bus 1 was always 2 for the 828.
I'm talking about input channels on the input bus (AFAIK there is a
maximum of 1 input and 1 output bus on the HALOutputUnit) - the user
sees multiple input channels so I'm getting a bunch of channels back
from the ChannelMap - but the user only gets audio on the first two
channels - the others are dead. The way the user found this out was by
plugging a guitar into the front inputs (which they don't normally
use).
Stereo output is working just fine. :-)
By contrast an M-Audio Delta 1010 is delivering input on all its
channels - no problem.
Robert.
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