So do you think I should reinstall the alsa drivers? When I tried to reconfigure it I was told it was not installed. bmike1@c521 ~ $ sudo dpkg-reconfigure alsa dpkg-query: package 'alsa' is not installed and no information is available Use dpkg --info (= dpkg-deb --info) to examine archive files, and dpkg --contents (= dpkg-deb --contents) to list their contents. /usr/sbin/dpkg-reconfigure: alsa is not installed If ALSA *is* the the drivers for the actual soundcard then ALSA needs to be present. On Tue, Dec 22, 2015 at 10:24 PM, Brian Cluff wrote: > On 12/22/2015 06:57 PM, Todd Millecam wrote: > > > In the case of sound, the general chain goes as follows: > > kernel->pci or usb bus->udev rules -> alsa or pulse -> ubuntu config and > application > > > You have this slightly wrong. ALSA is the the drivers for the actual > soundcard. Pulseaudio is an advanced sound server that sits on top of ALSA > to provide extra functionality, like mixing multiple channels of audio > together, and per application volume control, that ALSA doesn't have. > Pulse then exports out it's own ALSA connection so that programs that don't > know how to talk to pulse can still make sound. > > ALSA only programs would do: > *Sound source -> libALSA -> PulseAudio -> *ALSA driver -> hardware > > While pulse programs would do: > *Sound source -> PulseAudio -> **ALSA driver** -> Hardware* > > Pre-pulse was rather grim times for audio with many programs grabbing the > audio card exclusively so that nothing else would be able to make sounds. > > Brian Cluff > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org > To subscribe, unsubscribe, or to change your mail settings: > http://lists.phxlinux.org/mailman/listinfo/plug-discuss > -- :-)~MIKE~(-: