[pulseaudio-discuss] Remapped sinks: Descriptions and disadvantages?

[Lennart Poettering]

On Sat, 27.06.09 13:13, Timothy J Massey (tmassey at obscorp.com) wrote:

> The only disadvantage of this that I can see is that pavucontrol shows 
> both sinks when you go to move a stream to a different sink, and the name 
> of the remapped sink is not very helpful:
> 
>         Intel 82801BA-ICH2 - Intel 82801BA-ICH2
>         Remapped Intel 82801BA-ICH2 - Intel 82801BA-ICH2
> 
> Especially for now, I can live with it, but is it possible to control the 
> device.description of a remapped sink?
> 
> Also, while I'm asking, are there disadvantages (especially performance) 
> to remapping a sink like this?  For example, in comparing the sink 
> information between the original and remapped sink, it seems that the 
> remapped sink does not have HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL like the 
> original sink does.  Will this affect CPU usage or audio quality?

This should not have any ill efects. If it has, then it is a bug. CPU
consumption should not increase measurably.

> Finally, my last question is this:  is there a way to control the actual 
> name and description given to the original sink?  Especially in the 
> short-term, I don't mind having to statically configure the devices in, 
> say, default.pa, even if that means I can't hot-plug new devices.  I would 
> certainly do this if there are CPU or quality advantages to not doing the 
> module-remap-sink.

As already mentioned by other folks, just use sink_name= as argument
on the alsa-card line, and use sink_properties= for the sink
description (only on 0.9.16) or set-sink-property.

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/           GnuPG 0x1A015CC4