[FFmpeg-user] DTS 7.1 to AC3 5.1

[Mark Filipak]

Hi, All,

I've tried every trick in the documentation but I can't persuade FFmpeg CLI to convert DTS 7.1 to 
AC3 5.1.

The best I get is AC3 5.0(side).

Handbrake does it, and it uses the same libraries! I went ahead and made a minimal-resolution, MPEG2 
copy just to get at the AC3 5.1.

Do you do DTS 7.1 to AC3 5.1 via FFmpeg? How do you do it?


       silent = 3,214,906,938 bytes
with DTS 7.1 = 8,623,235,367 bytes
with AC3 5.1 = 3,968,811,052 bytes