Arch Linux

Mrcoe1989

Member

Registered: 2016-06-23

Posts: 9

Configure high quality re sampling and 5.1 surround sound in asound

Hello All

New to the arch forum, im looking to configure my asound.conf file to allow for 5.1 sound and high quality re sampling as shown in the arch wiki, however the wiki doesn't explain where the lines of code your asked to add need to be to be switched on. here is my current asound.conf file:

"# Use PulseAudio by default
pcm.!default
pcm.!default "plug:upmix51"
{
  type pulse
  fallback "sysdefault"
  hint {
    show on
    description "Default ALSA Output (currently PulseAudio Sound Server)"
  }
}

ctl.!default {
  type pulse
  fallback "sysdefault"
}

# vim:set ft=alsaconf:
defaults.pcm.rate_converter "speexrate_best"
pcm.upmix51 {
    type upmix
    slave.pcm "surround51"
    delay 15
    channels 5
}"

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,676

Re: Configure high quality re sampling and 5.1 surround sound in asound

You use pulseaudio, don't try to upmix in asound.conf, set pulseaudio to the correct profile  (remove your modifications to /etc/asound.conf, install pavucontrol and switch to the 5.1 profile of your card in the configuration tab). Adjust the resampler pulseaudio will use in /etc/pulse/daemon.conf (libsamplerate has been disabled there, because testing had shown not to have any benefit over the default speex resampler) you can increase the speex-resamplers quality setting by adjusting the number at the end from 1 to 10, remove the leading ; to make the setting be used on the next start of pulseaudio)

If that didn't help post

sudo fuser -v /dev/snd/*
aplay -lL
pacmd list-cards
pacmd list-sinks

Last edited by V1del (2016-07-25 08:49:24)