Re: [LAU] Synchronization of audio with MIDI file

that is a good find and maybe answers a thread from earlier today "software communication with acoustic instruments" there were some discussions about this recently in our project studio: making a linux application, configured with an idealized MIDI drum score, that listens via MIDI to electronic drums (or acoustic kit with triggers) and tries to calculate the "real-time" tempo based on the incoming drum notes - and then updating jack transport with fine-grained tempo changes - in theory then any jack transport-aware looper or sequencer could play along with the band but we never got beyond the "talk over beers" stage and were unsure if it would work: how would sequencers react to continuous tempo changes? on a deeper level: how hard is the calculation of tempo when you have an "ideal" score vs noisy MIDI data coming from the drums? I see now that IRCAM have spent decades researching the "score following" problem: http://repmus.ircam.fr/antescofo/videos#score-following-history-in-video (also I notice their sample human player is not a drunk rock and roll drummer... and thus that part might be a bit "idealized" as well..) so we would also be curious about experience with this or other similar software. it also would be interesting if there's any open-source code that could be "borrowed" for a jack-centric system as described above.. On 10/07/2013 02:34 PM, Angel de Vicente wrote: