[wdmaudiodev] Re: Mono recording from a stereo endpoint on Windows 7
- From: "Jeff Pages" <jeff@xxxxxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 19 Apr 2011 09:17:18 +1000
Matthew wrote:
>What formats does your device support... in particular, in the Sound
control panel, what are the entries on the Advanced tab under "Default
Format" for your device? And which is selected?
The device supports 2-channel (stereo) recording at the usual range of
sampling rates, with 16-bit or 24-bit resolution, with the default format
set to 2-channel, 24-bit, 48kHz. The same thing happens when I set the
default to 16-bit.
I've also noticed the same thing with the inbuilt HD sound port on the
motherboard - when an application records in a mono format, only the left
channel is recorded, not (L+R)/2 which you'd normally expect and which
happens on XP.
Jeff
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Jeff Pages
Sent: Thursday, April 14, 2011 11:12 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Mono recording from a stereo endpoint on Windows 7
I've just noticed in Windows 7 that when an application opens a stereo
capture endpoint in mono, it only receives the left channel instead of the
expected L+R mix which happened in XP. Is this by design, and if so, is
there any way of making the audio engine do an L+R mix when recording mono?
Or do I have to create a virtual mono-mix endpoint in my driver?
Jeff
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