-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Fons Adriaensen wrote: > Hello all, > > Would there be a simple way to import plugin > automation data into an Ardour session ? > > 'Simple' may include writing some software, but > not any major project :-)
both ardour track and plugin automation data is stored in text files, named after 'projectname-plugin-trackid.automation'. The First line is "version <num>" each line thereafter <type> <timestamp(in samples)> <value> The only valid type is 'g' corresponding to gain_automation_curve() see libs/ardour/io.cc:1715 - it seems like plugin-automation use LADSPA-port numbers as type; but I have not verified that in the source. http://code.google.com/p/noisesmith-linux-audio/downloads/detail?name=ladosc.tar.bz2 offers both an OSC input and output as LADSPA plugin. > The situation I want to handle is this: > > We have a Csound, SC3, PD, program generating > a number of audio signals, and also simple > OSC commands that would control external > processing of these signals, e.g. surround > panning or movement implemented by an > external system. Last June I set up a system like this; http://mir.dnsalias.com/oss/panjack/ is a small JACK c-program that processes external input (either MIDI or OSC) to pan audio sources. I had 6 audio-inputs to 10 speakers and up to 12 parameters for panning (either angle and width or X/Y coordinates) - PD did not manage to run that in realtime but I'm sure I could have optimized the sqrt()s. Since we had live audio sources and not only playback, I eventually ended up mixing it live (with a BCF2000 and panjack) rather than automating it with ardour. > The signals each become a mono track in Ardour, > while the OSC controlled parameters are stored > as automation data for a LADSPA plugin in each > track. On playback, the plugin just sends this > data to the external application. yes, works like a charm with a little random latency due to UDP. There are a few minor issues to consider: when moving the playhead in ardour you can skip over OSC commands and a badly designed receiving application may end up in a wrong state. > The whole point is to combine a number of such > compositions into a single Ardour session that > can be looped without any user intervention. so you're looking for an OSC-sequencer with jack-transport control. maybe turn it around: have PD control ardour ?! 2c, robin -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkkHMHwACgkQeVUk8U+VK0KMSwCfepXCsT0CfOqN6Q+Pe+OHT3Qy y5YAnjaotL4xTfR3LIOuJndufNK3yo9f =lzXg -----END PGP SIGNATURE----- _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev