• Status Closed
  • Percent Complete
  • Task Type Bugs
  • Category Music playback
  • Assigned To No-one
  • Operating System iPod 5G
  • Severity Low
  • Priority Very Low
  • Reported Version Release 3.4
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: Rockbox
Opened by MadRat - 2010-04-07
Last edited by stripwax - 2010-05-14

FS#11183 - Multichannel Ogg Vorbis not playing with Rockbox

I’ve tested several 6 channels Vorbis files with Rockbox. The file info (tags, bitrate, etc) are read, the player pauses for a while then tries to load the next file in the list. Here is one example:

“The samples are taken from a japanese war/naval movie (Lorelei), since what we normally do isn’t music, it’s movie soundtracks.

60 seconds Ogg Vorbis sample. ( (2.7 MB) Q4, channel order FL, C, FR, SL, SR, LFE (this is the besweet default and what Winamp’s Vorbis decoder claims is the right order). Encoded with libvorbis.dll using libvorbis 1.1.2, downloaded from (this one: and BeSweetGUI 0.7b8/BeSweet 1.5b30.

BeSweet commandline: “C:\Program\BeSweet\BeSweet.exe” -core( -input “c:\lorelei\VTS_02_1 - 0×80 - Audio - AC3 - 6ch - 48kHz - DRC - Japanese - DELAY 0ms.ac3” -output “c:\lorelei\6ch.Vorbis.Q4.ogg” ) -azid( –maximize ) -split( -start 570 -end 630 ) -ogg( -q 0.400 -6ch 1 )”

Closed by  stripwax
2010-05-14 22:27
Reason for closing:  Not a Bug

The vorbis decoder for rockbox supports at most 2 channels. It does not support mixing multichannel audio down to 2 channels.
Out of interest, what would you expect to happen, when you play a multichannel audio file on a device with only 2 channels?

Closing. Reopen if you have more information to support this being a bug, rather than an unimplemented feature.


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