Subject: Re: [ecasound] Installing LADSPA for use with ecasound
From: Kai Vehmanen (kai.vehmanen_AT_wakkanet.fi)
Date: Thu Apr 10 2003 - 15:31:53 EEST
On Thu, 10 Apr 2003, Roel de Wit wrote:
> I need to do something similar to what I did in the windows application
> soundforge.. Below is a link with a small .gif picture which shows the EQ
> settings:
> http://sparc.eternalsin.com/eq.gif
Hmm, you could also ask about this on linux-audio-user, how to I get
<insert-link-to-eq.gif> with LADSPA plugins.
> Is there any way I could do something similar with the default 'ecasound
> package' ?
Ecasound only provides filtering primitives, so it might require some
tuning to get the results right, but yes, you can do things like:
ecasound -a:1,2 -i foo.wav -o bar.wav -a:1 -efb:80,160 -ea:100
By adjusting the last '100' you can control how much emphasis you want.
Replace bar.wav with /dev/dsp if you want to test in real-time.
Whether this is good enough depends on your quality requirements.
> I don't have the knowledge to recompile a LADSPA plugin to a native ecasound
> plugin I fear. I've not yet decided on any specific plugin since I was too
> busy trying to get 'any' LADSPA plugin to work. Basically any plugin that
> should allow me to set EQ settings like in the above picture will do.
I might have time to help with this. Certain plugins should be quite
easily portable and I guess ecasound could use a good parameteric-eq
natively. One catch is that some of the LADSPA plugins use FFT, and thus
need the FFTW libraries, which I don't think (not 100% sure) are available
on Windows. For instance the mbqe plugin (multiband-EQ) uses that.
-- http://www.eca.cx Audio software for Linux!
This archive was generated by hypermail 2b28 : Thu Apr 10 2003 - 15:31:56 EEST
