On Fri, Mar 14, 2014 at 7:34 PM, Fons Adriaensen <fons@xxxxxxxxxxxxxx> wrote: > On Fri, Mar 14, 2014 at 07:16:47PM +0530, Rustom Mody wrote: > >> No jack (to start with at least when the hiss sound starts) >> I am using debian -- which meant that there was no pulse until recently >> Of late I see occasionally some pulse related messages. >> eg I get these messages when I start audacity: >> >> ---------------------------------- >> ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear >> ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe >> ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side >> ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: >> Connection refused >> >> ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: >> Connection refused >> >> Expression 'stream->playback.pcm' failed in >> 'src/hostapi/alsa/pa_linux_alsa.c', line: 4611 >> Expression 'stream->playback.pcm' failed in >> 'src/hostapi/alsa/pa_linux_alsa.c', line: 4611 >> Expression 'stream->playback.pcm' failed in >> 'src/hostapi/alsa/pa_linux_alsa.c', line: 4611 >> Expression 'stream->playback.pcm' failed in >> 'src/hostapi/alsa/pa_linux_alsa.c', line: 4611 >> --------------------------------- > > First of all disable Pulse, or get rid of it. Don't know how to > do that on Debian. > >> Hardware: There is only one connection -- the speaker into the soundcard. >> No mic, no line. >> For now, I checked with xfce4-mixer. >> If I turn down master or front-mic the hiss reduces > > So you are sending the mic signal (which will be lots of hiss when no > mic is connected) to the speakers. Yes But how am 'I' sending that signal? I dont have any .asoundrc Is there some other place to look for configs? > >> However then musescore (my main use right now) also becomes too soft > > That should not depend on any 'Mic' settings, only on 'PCM' and > 'Master'. If it does, that means the upgrade botched your ALSA setup. > Try turning down (or switching off) anything 'Mic'. When I turn off Mic my playback shuts off _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
