[pulseaudio-discuss] Setting latency of module-loopback

Lennart Poettering lennart at poettering.net
Tue Sep 29 10:46:26 PDT 2009


On Thu, 24.09.09 16:18, Tor-björn Claesson (tclaesson at gmail.com) wrote:

> Hello!
> 
> My soundcard (terratec phase 26) doesn't automatically echo any input. Since
> I wan't to be able to hear what I play, I want to rout the mic-in to the
> phone-out.
> This works:
> 
> pactl load-module module-loopback
> source=alsa_input.usb-TerraTec_PHASE_26_USB_24_96rec__11001-00.analog-stereo
> sink=alsa_output.usb-TerraTec_PHASE_26_USB_16_48__11001-00.analog-surround-41
> 
> but has a rather high latency by default. According to the docs i should be
> able to set a lower latency, but
> 
> pactl load-module module-loopback
> source=alsa_input.usb-TerraTec_PHASE_26_USB_24_96rec__11001-00.analog-stereo
> sink=alsa_output.usb-TerraTec_PHASE_26_USB_16_48__11001-00.analog-surround-41
> latency_msec=1
> 
> fails.

Fails? Please elaborate? What's the log output PA generates when you
do this? Something like this should work, though 1ms is probably a bit
too low.

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/           GnuPG 0x1A015CC4



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