Hello all, First a small introduction: I use Alsa as a proxy to synchronize volume/mixer levels across a number of audio applications and my hifi amplifier. In the past I had pcm and mixer data send to different alsa-devices from the audio applications, the former going to a usb-dac, the latter going to snd_dummy. One advantage of that is that the dummy card is always available contrary to the usb-dac which may be on or off. However, now I have an application that doesn't allow sending mixer data to different devices (and I can't change that either, closed source), so I created a dummy mixer device for my usb-dac in the file asound.state. This works well, but when the dac is powered off, the mixer device doesn't exist. This creates a problem, most applications don't care if the pcm device is not there while not being used. The mixer device is expected to always be there.
Hence, my question: is it possible to create a virtual mixer device that binds a set of mixer devices which might be there at one point or not? In essence, I would like to have a mixer device that is always there and is synchronized with the mixer of my usb-dac when it's there but doesn't complain if it isn't. Preferably I would like to create a sort of binding between a number of usb-dac already defined in the asound.state file (including snd-dummy). Unfortunately I haven't found a basis to work from online. I do find info on slave/binding different pcm devices, but these leave the ctl devices empty. Can anyone point me in the right direction here? Is this possible at all? Thanks in advance and kind regards, Maarten ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
