[vlc-devel] audio convolver for vlc

Kaarlo Räihä kaarlo.raiha at gmail.com
Wed Jan 25 07:12:07 CET 2012

2012/1/24 August Winkelman <A.J.M.Winkelman at tudelft.nl>

>  VLC developers,
> I would like to try and implement audio convolution (FIR filtering) with
> VLC (Ubuntu) much like 'convolver' that is available for the windows
> platform (addon for windowsmediaplayer etc). It seems there is no such
> simple add-on for any audioplayer in Ubuntu.
> I suppose your equalizer module is a good starting point to try and
> implement audio convolution.
> I'm not a c-programmer (I use Matlab, Labview etc) but I had a look at the
> source-code equalizer.c and I think I understand more than 50% ;)
> One thing I definitely do not understand is how the graphical interface is
> created in the module.

The GUI modules create them separately (you have to build GUI via them if
you want it in e.g. QT4 interface). So equalizer.c doesn't have any GUI
related code.

> Questions:
> do you agree that convolution might be easily implemented in the equalizer
> module?

It should be a quite easy thing to do.

> Would there be c wizards in the VLC project willing to help?
> Many thanks for your time,
> August Winkelman
> Delft
> The Netherlands
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