On Tue, Jan 31, 2017 at 07:24:29AM +0100, Peter Nabbefeld wrote: > > Hello, > > semms I'm missing some basic parts of the sound system. I've been told, ALSA > is for the hardware, pulseaudio is for the infrastructure, and bluez > provides for virtual bluetooth devices, so I understand it should look like > this (ASCII graphics, please use monospaced font for viewing): > > > > +------------+ +-----------+ > | Rosegarden | | Totem | > +------------+ +-----------+ +-----------------+ > | Jack | | GStreamer | | Appl. using PA | > +------------+---+-----------+---+-----------------+ > | Pulseaudio (PA) | > +--------------------+---+-------------------------+ > | ALSA | | Bluez | > +--------------------+ +-------------------------+ > > > This would imply, that ALSA cannot "see" Bluetooth devices, but that seems > not to be the fact, so there's probably a misconfiguration on my laptop. > There's a bridge (bluez-alsa-git) in the AUR, but I haven't installed it, so > why can ALSA see my headset? ALSA "sees" audio devices as reported by the kernel. If the kernel / udev registers your bluetooth headset as an audio device, you should be able to control it through ALSA. This is similar to USB network adapters, for example. Cheers, -- Leonid Isaev