dolby digital EX

[GoogleCodeExporter]

It would be great to have a possibility to decode dolby digital EX format with 
a correct matrix of rear channels in 7.1 system.

Original issue reported on code.google.com by lemayve...@gmail.com on 5 Mar 2012 at 9:47

• Merged into: #122

[GoogleCodeExporter]

While not really a duplicate, i'll still mark it as one for Dolby Surround 
decoding. Its basically the same concept, Stereo -> 5.1 and 5.1 -> 6.1

Dolby Surround EX might be supported as well, if documentation exists how the 
matrixing is done.

Original comment by h.lepp...@gmail.com on 5 Mar 2012 at 3:43

• Changed state: Duplicate

[GoogleCodeExporter]

Hi,

"This process produces three 'matrixed' rear audio channels"

I found this information on the bottom of this page:

http://www.spannerworks.net/reference/10_9a.asp

Original comment by lemayve...@gmail.com on 6 Mar 2012 at 8:59

[GoogleCodeExporter]

Dolby Pro Logic matrix (2:4)

source:

http://en.wikipedia.org/wiki/Matrix_decoder

The extra surround channel is matrix encoded onto the discrete Left Surround 
and Right Surround channels of the 5.1 mix, much like the front center channel 
on Dolby Pro Logic encoded stereo soundtracks. The result can be played without 
loss of information on standard 5.1 systems, or played in 6.1 or 7.1 on systems 
with Surround EX decoding and additional speakers.

source:

http://en.wikipedia.org/wiki/Dolby_Digital#Dolby_Digital_Surround_EX

I hope it can help.

cheers

Original comment by lemayve...@gmail.com on 6 Mar 2012 at 3:43