Author Topic: Downmix multi-channel  (Read 2360 times)

SmartOne

  • Posts: 216
Downmix multi-channel
« on: 4 Jan '14 - 05:31 »
What does this actually do?  What's the matrix for 5.1 to 2.0, for example?

r

  • Posts: 202
Re: Downmix multi-channel
« Reply #1 on: 8 Nov '21 - 00:28 »
Sorry to bump an old post, but I was looking for how XMPlay downmixes multi-channel tracks, and am also interested in the matrix or downmix algorithm.

This was the closest thread I could find. Apologies if I should have just started a new thread.

Ian @ un4seen

  • Administrator
  • Posts: 23983
Re: Downmix multi-channel
« Reply #2 on: 8 Nov '21 - 15:08 »
The 5.1 to 2.0 matrix would look like this:


    L   R   C   LFE LS  RS
L = 1.0 0.0 0.7 0.7 1.0 0.0
R = 0.0 1.0 0.7 0.7 0.0 1.0


If the "Adjust level" option is enabled then the values would all be lowered to avoid/reduce clipping.