all sound relation commands in my config
snd_flushasync
snd_mixahead "0.1"
snd_async_fullyasync "0"
snd_digital_surround "1"
dsp_enhance_stereo "0"
dsp_slow_cpu "1"
dsp_spatial "40"
dsp_speaker "50"
dsp_volume "2"
hud_centerid "1"
cl_downloadfilter "all"
snd_profile "0"
volume "0.15"
sv_voiceenable "1"
voice_scale "1"
voice_modenable "0"
voice_enable "1"