Re: [Alsa-user] broken digital sound again
At Thu, 29 Jan 2009 18:27:09 -0500, James wrote: Clemens Ladisch wrote: James wrote: $ speaker-test -D iec958 -c 6 ... Channels count (6) not available for playbacks: Invalid argument S/PDIF does not support uncompressed surround sound; you have to play stereo data (use -c 2) or AC-3/DTS-compressed data. Best regards, Clemens Speaker-test used to output to all my speakers. -c 2 DOES output to my left and right front speakers but I can't get anything out of the others in my 5.1 SPDIF supports basically only 2-channel PCM. 5.1 is implemented in a compress format such as AC3 or DTS, which is transmitted as if a two-channel PCM stream, and the receiver expands the compressed stream again to 5.1. $ aplay -D iec958 -c 2 /storage/music/goodbye3.wav Playing WAVE '/storage/music/goodbye3.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Mono aplay: set_params:966: Channels count non available It's because you're trying to play a mono sample on a 2-ch stereo device without the conversion plugin. Wrap with plug:, e.g. aplay -D plug:iec958 -c 2 /storage/music/goodbye3.wav (But, this doesn't mean that it'll be converted to 5.1 compressed format, though.) Takashi -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] broken digital sound again
James wrote: Clemens Ladisch wrote: James wrote: $ speaker-test -D iec958 -c 6 ... Channels count (6) not available for playbacks: Invalid argument S/PDIF does not support uncompressed surround sound; you have to play stereo data (use -c 2) or AC-3/DTS-compressed data. Best regards, Clemens Speaker-test used to output to all my speakers. -c 2 DOES output to my left and right front speakers but I can't get anything out of the others in my 5.1 $ aplay -D iec958 -c 2 /storage/music/goodbye3.wav Playing WAVE '/storage/music/goodbye3.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Mono aplay: set_params:966: Channels count non available Grrr, Amarok just randomly started working. Still no KDE system sounds but I care more about digital Amarok. -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] broken digital sound again
Clemens Ladisch wrote: James wrote: $ speaker-test -D iec958 -c 6 ... Channels count (6) not available for playbacks: Invalid argument S/PDIF does not support uncompressed surround sound; you have to play stereo data (use -c 2) or AC-3/DTS-compressed data. Best regards, Clemens Speaker-test used to output to all my speakers. -c 2 DOES output to my left and right front speakers but I can't get anything out of the others in my 5.1 $ aplay -D iec958 -c 2 /storage/music/goodbye3.wav Playing WAVE '/storage/music/goodbye3.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Mono aplay: set_params:966: Channels count non available -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] broken digital sound again
James wrote: $ speaker-test -D iec958 -c 6 ... Channels count (6) not available for playbacks: Invalid argument S/PDIF does not support uncompressed surround sound; you have to play stereo data (use -c 2) or AC-3/DTS-compressed data. Best regards, Clemens -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
