Using module-ladspa-sink - what LADSPA plugin exactly do I need to install?

[Sergei Steshenko]

Doron,

if you need an equalizer which is not necessarily a LADSPA plugin, have 
a look at https://github.com/wwmm/easyeffects/blob/master/README.md . 
There is a version of EasyEffects not only for PipeWire, but for 
PulseAudio too, it is called PulseEffects. 
https://flathub.org/apps/com.github.wwmm.pulseeffects probably would be 
a good start.

--Sergei.

On 09/06/2024 1:07, Doron Behar wrote:
> Sorry for the late reply :) (I'm not used to mailing lists)
>
> On Mon, Jun 03, 2024 at 09:19:50PM -0700, Sean Greenslade wrote:
>> On Mon, Jun 03, 2024 at 06:17:59PM +0300, Doron Behar wrote:
>>> I found this program I'd like to use:
>>>
>>> https://github.com/pulseaudio-equalizer-ladspa/equalizer
>>>
>>> I managed to compile and run it, but I don't hear it makes a difference
>>> in the sound. Do I need to enable the `module-ladspa-sink` module? Link:
>>>
>>> https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules/#module-ladspa-sink
>>>
>>> What makes it difficult for me to figure this out myself, is the
>>> [LADSPA](http://www.ladspa.org/) link, which seems to general, because
>>> this group develop many projects, or which I'm not sure which I should
>>> compile as a pulseaudio plugin (some of which are available in my
>>> distribution.
>>>
>>> Thanks for any help in advance.
>> What distro of Linux are you running?
>>
>> Eyeballing the Arch package for this equalizer, it looks like it needs
>> the swh-plugins package for the actual LADSPA plugin itself. It might be
>> named differently on your distro.
> So I'm using NixOS and our `ladspaPlugins` package distributes the files
> distributed by Arch Linux' `swh-plugins` package.
>
>> You shouldn't need to manually load any modules in pulse; this equalizer
>> script seems to do all the module loading automagically.
> OK, sounds promising. I'm still a bit confused how it won't output any
> error if it doesn't find these plugins at all. Perhaps I'll continue to
> discuss this with upstream at:
>
> https://github.com/pulseaudio-equalizer-ladspa/equalizer/issues/58
>
> I will reply again to this thread if I'll learn something new after
> discussing there.
>
> Thanks anyway.