digital bitperfect stream with snd_uaudio and offsite DAC

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digital bitperfect stream with snd_uaudio and offsite DAC

Jakub Lach
am I correct in my reasoning, that by setting-

dev.pcm.0.play.vchans=0
dev.pcm.0.bitperfect=1

and using snd_uaudio I could practically offload
"sound mixing" (and making) from operating system?

Of course there would be USB audio class
DAC device connected based on Tenor TE7022L
UAC1.
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Re: digital bitperfect stream with snd_uaudio and offsite DAC

Jakub Lach
Thanks FreeBSD!

All works really fine-

Feb  4 14:00:20 Thinkpad kernel: ugen5.2: <Binary Audio> at usbus5
Feb  4 14:00:20 Thinkpad kernel: uaudio0: <ODAC > on usbus5
Feb  4 14:00:20 Thinkpad kernel: uaudio0: Play: 96000 Hz, 2 ch, 24-bit S-LE PCM format, 2x8ms buffer.
Feb  4 14:00:20 Thinkpad kernel: uaudio0: Record: 96000 Hz, 2 ch, 24-bit S-LE PCM format, 2x8ms buffer.
Feb  4 14:00:20 Thinkpad kernel: uaudio0: No midi sequencer.
Feb  4 14:00:20 Thinkpad kernel: pcm0: <USB audio> on uaudio0

uhci an snd_uaudio module, nothing more. O2+ODAC combo
(http://nwavguy.blogspot.com/)

Recommended!