Re: [Jack-Devel] Hook for master volume

PrevNext  Index
DateSun, 13 Jul 2014 09:29:08 -0400
From Paul Davis <[hidden] at linuxaudiosystems dot com>
To[hidden] at marzen dot de
CcJACK <[hidden] at lists dot jackaudio dot org>
In-Reply-ToHolger Marzen [Jack-Devel] Hook for master volume 
On Sun, Jul 13, 2014 at 9:05 AM, Holger Marzen <[hidden]> wrote:

> Hi all,
>
> a master volume fader is missing in JACK. Some audio interfaces don't
> offer a volume knob. Many clients automatically connect to
> system/playback, some only when playing (Clementine audio player).
>
> What's needed is a hook within system where a master volume fader can be
> inserted.
>


JACK does not interact with the settings of the hardware mixer, and
likewise doesn't offer any global controls. If you want a "master volume"
you need to route via something other than system. Clients that have their
connection behaviour hard-coded are incorrectly designed.

The new metadata API was designed in part to allow users to specify "roles"
for particular ports to address this sort of thing, but since the metadata
API hasn't landed in Jack2 yet, it seems it is still not time to promote
its usage for this purpose.
PrevNext  Index

1405289435.15356_0.ltw:2, <CAFa_cKnNFkCkOMQU9gEu2UFpYpBUmDiNGpy3Z1hBzP5TZu6h4w at mail dot gmail dot com>