[linux-audio-dev] Utility for recording audio track with midi clock

Hi, A friend of mine owns a Roland vs-1680 harddiskrecorder. It has a feature that allows for recording and playing back a midi clock signal alongside the audio tracks. This makes it possible to create a tempo map with a (hardware) sequencer, record it on the vs-1680, and use it to keep the sequencer in sync with subsequently recorded audio tracks . We work together on a project, and i would like to be able to record and play back the audio mix from the vs-1680 to my computer together with the midi clock data (he takes his machine home to work on the audio part). That way i can work on the sequences on my mpc1000, and play back the audio whith the sequences synced midi clock slave. I believe there is currently no linux app that can do that, so i am considering to try to create a utility for it. But i have little programming experience and none regarding alsa and jack, so i would like feedback on my ideas. My plan is to write a little program that opens 2 midi ports (in and out) and 2 jack ports (in and out). The program wil monitor the midi input port for midi clock messages. It will write zero's to the jack output port but when it recieves a midi clock message it will write a value of 1 to the jack port. This way i can store the midi clock signal in a audio file, for example with ecasound. I know, this is ugly! For playback i would have the program monitor the jack input port and output a midi clock message when a sample value of 1 passes by. I hope this explains my plan clear enough. I have looked at the example programs for alsa and jack and to me it looks like i could copy and paste something together, that could be my lack of experience. What do you think? Is this possebly going to work or do i overlook major difficulties? Any advice would be very welcome! -- Greetings, Gerrit