Re: DirectSound Capture bug at 4GBytes

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"Chris P. [MVP]" <msdn@xxxxxxxxxxxx> wrote in message
news:1hh1m9dnadjhi$.7xgi1p7ifpp9$.dlg@xxxxxxxxxxxxx
> On Tue, 3 Jan 2006 22:58:57 +1300, Kit Adams wrote:
>
>> Hi,
>> It appears that one can work around this bug by forcing the capture
>> buffer
>> size in bytes to be a power of 2. However this means you have to force
>> the
>> number of sampling channels to also be a power of 2 (otherwise the
>> capture
>> buffer will not be a multiple of the nBlockAlign size). This is not very
>> convenient if you have, say, a 10 channel M-Audio sound card and want to
>> sample on 10 channels rather than 8.
>
> Interesting. I wonder if it's unique to the M-Audio or a general
> DirectSound problem.
>
> BTW with other sound cards I do multi-channel through the WinMM interface
> without issue. I've tested MOTU, Echo Audio, and some others.

Thanks for that information.
I will try again with WinMM - I might have missed something. I will also try
DirectSound with some other cards to see if the bug still occurs (I'm going
away for 10 days so it won't be until after that).


.

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