Rodolfo Medina <rodolfo.medina@xxxxxxxxx> writes: > Jeremy Nicoll - ml sox users <jn.ml.sxu.88@xxxxxxxxxxxxxxxxxxxx> writes: > >> On 2018-03-06 09:08, Rodolfo Medina wrote: >>> Hi all sox users. >>> >>> I have a multichannel audio file: suppose three channels. What I want is >>> to listen to that file by listening to each of those channels through a >>> different loud speaker. In order to do so, I imagine > > ...though I may be wrong... > > >>> each channel being sent to a different sound card. Can sox perform that, >>> and how? In sox manual I couldn't find an answer. >> >> What sound hardware does your computer have? Do you actually have more than >> one soundcard? >> >> Since you posted on Debian-Users, is there a way in Debian to list what these >> separate sound devices' names are? > > Two different soundcards, and three devices, seem to be detected: > > $ arecord -l > **** List of CAPTURE Hardware Devices **** > card 1: Generic [HD-Audio Generic], device 0: ALC662 rev3 Analog [ALC662 rev3 > Analog] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: Generic [HD-Audio Generic], device 2: ALC662 rev3 Alt Analog [ALC662 > rev3 Alt Analog] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 2: Device [USB Audio Device], device 0: USB Audio [USB Audio] > Subdevices: 0/1 > Subdevice #0: subdevice #0 > > >> Do you have a way (forgetting your audio file for a moment) of getting sound >> out to three separate places? > > If I could have sox (or any other software) send different channel outputs to > different soundcards, I could think of plugging a loud speaker into each > soundcard and so getting sound out to three separate places... > > >> Do you have any other sound-playing software? > > I normally use mplayer to play sound. Since sox can split a three-channel file into three one-channel files, the problem is virtually solved once we manage to send two audio outputs into two different audio cards. This seems to be done simply with `&&', e.g: $ mplayer -ao alsa:device=hw=2.0 file1.wav && mplayer file2.wav , but unfortunately only one output is heard at a time... Rodolfo ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Sox-users mailing list Sox-users@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/sox-users
