[wdmaudiodev] Re: Msvad pcmex, audio channel mask

  • From: Kim Therkelsen <kim_t26@xxxxxxxxxxx>
  • To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Mon, 4 Feb 2013 10:28:36 +0000

Hi Rob,
Thank you for the answer. I was afraid of that. It is important for me to 
perform the downmix myself. Is there a way to accomplish this by for instance 
making a LFX instead?
I also find the behaviour suboptimal in some cases. An example of this is when 
connecting a PC to a surround receiver using HDMI, in that case you would want 
the surround receiver to decide if an upmix should be performed and perform it 
if needed. Ideally it should know if the audio material is stereo or true 7.1 
surround material. Even though Windows would not upmix the stereo content to 
7.1, the surround receiver would not know this as it receives 8 channels (6 
containing silence). I realize that it becomes a problem when playing back 
multiple audio tracks (both stereo and 7.1) at the same time on a PC but in 
that case it should default to the highest common number of channels, 8.


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