Re: [LAU] Convolver?

Wow - thank you! This sounds amazing indeed! I really look forward to
trying out Aella! For now I will be trying jconv at a tme where there is
some time:-)

Best regards
Ketil
Fons Adriaensen skrev:
> On Fri, Dec 14, 2007 at 02:06:22PM +0100, Ketil Thorgersen wrote:
>
>
>> I have been browsing for convolver/impulse respons plugins for linux and
>> have found a few: brutefir, jace, jack-convolve and dssi-convolve. The
>> only ones with guis are the two later ones which is also the simplest,
>> and which seem to be discontinued. I have not tried jace, but brutefir
>> seems to be quite complicated to use. Does anyone know if someone is
>> worling on an easy to use (for a beginner) convolve plugin for linux -
>> preferably as a ladspa plugin??
>>
>
> Like Brutefir, Jace uses a text format config file, but it is somewhat
> easier to set up. Jace will be phased out, and replaced by Jconv which
> takes the same config files but can be much more efficient if you want
> small or zero processing delay.
>
> There will be a new release of Jconv probably next week. The convolution
> engine now has been factored out into a separate shared library with a
> clean API, and that will also be the core of Aella. This is a JACK app
> with a GUI, and optimised for reverb.
>
> The work required to finish Aella (which has been in development for
> a long time) is not related to the convolution code, but to the need
> to simplify the rather complex configuration that is required to use
> some impulse responses.
>
> The IRs that are available on the web are all in different formats,
> and they all need some preprocessing in order to be used: finding
> the exact position of the direct sound and removing it (to be mixed
> in separately), separating the early reflections and the reverb tail,
> amplitude normalisation, additional delays, cleaning up noisy reverb
> tails, equalisation, resampling, etc.
>
> All of this should be done off-line, with a 'standardised' IR file as
> the result, otherwise Aella, even with a GUI, would be as difficult to
> use as a basic convolution engine like Jconv. And even after all that
> preprocessing, some 'metadata' needs to be preserved to enable efficient
> multichannel use, and also in order to allow the user to modify the
> reverbs (within some limits) in Aella.
>
> Since it would be impossible for me to copy all available IRs on my
> own website (both for copyright reasons, and because it takes a lot
> of space), the way I'll try to organise this is to provide scripts
> that perform the required preprocessing on the raw files downloaded
> by the end user.
>
>
>

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Received on Wed Dec 19 00:15:13 2007