#1 2018-02-20 09:07:33

brontosaurusrex

Middle Office

Registered: 2015-09-29

Posts: 2,755

Alsa, loudnorm filter on master channel?

I have been using ffmpeg loudnorm filter with mpv for a while now
http://k.ylo.ph/2016/04/04/loudnorm.html
and would like to have the same on the system level (master channel or 'browser' channel), I imagine something like
https://packages.debian.org/stretch/libavdevice57
might be handy? How would I go with this, an example for any audio filter on alsa master? And a way for a user to switch the filter on/off easily.

Edit: Got an eq working as example, but unclear how to enable/disable easily, other than deleting .asoundrc.

Last edited by brontosaurusrex (2018-02-20 11:13:55)

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brontosaurusrex

Middle Office

Registered: 2015-09-29

Posts: 2,755

Re: Alsa, loudnorm filter on master channel?

Right, ladspa loudnorm plug would do it I guess, but can't really google one. Jack seems to be ladspa oriented as well. For a serious pipeline work i'd expect a wonderful node oriented gui, but most of the time I don't have such high needs.
http://www.kxproject.com/images/p16v_route.gif

Last edited by brontosaurusrex (2018-02-20 14:26:12)

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