On Tue, Feb 17, 2004 at 01:23:24AM -0500, Chris Pickett wrote: > Erik de Castro Lopo wrote: > What about support for offline LADSPA plugin processing, e.g. > command-line through ecasound or from within a full-blown GUI thing like > Rosegarden? > I'm not an expert on this, but first there are plenty of applications that do particular jobs in non-real time - all the MP3 and Ogg Vorbis tools, for example, and sox has already meen mentioned. Audacity has plugin support and various effects which are applied in non-real time. The default action of Audacity with multiple tracks (i.e. more than a simple stereo pair) is to mix them to stereo. While it does this in real time when you press the play button, it does the same thing when you select "export as WAV". In fact I'd be surprised to find any audio processing application that can't be persuaded to run effectively as a good old-fashioned stdin->stdout filter. I'm not familiar with ecasound, but I thought it could perform all of its functions from file to file if you wanted it to. > From what I can tell, things were built to do this from the ground up, > e.g. in the JACK design document there is a picture of jackd and it says > "ALSA backend client and clock driver". I don't think Jack is what you need: as I understand it Jack is all about realtime audio. I could be very wrong... -- Anahata anahata@xxxxxxxxxxxxxx Tel: 01638 720444 http://www.treewind.co.uk Mob: 07976 263827
