Electronic Music 411 - i've built two more drum machines

@pierlu001:
autodrummer is at the moment controlled by ableton live via a small proxy program that converts midi data to serial data that is sent to the arduino controlling the robot. note-on messages. the pitch determines the position. that is also the main problem. because the turning starts at note-on so notes that are farther away come too late. i am planning to remove the computer and build some analog sequencer style interface.

and yes the rotodrummer doesn't have enough torque at slower speeds.

pierre bastien is great. we just played at a festival in austria where he did a very cute performance with only small machines. very beautiful.

Recent blogs: institute for transacoustic research live video, vegetable orchestra video nominated for youtube award, my $20 midi synth

11/13/07 + pierlu001

thanks for the explanation: it makes clear why i had the feeling the robot was "stressed" about reaching the right note on time.
if i understand correctly,you could do the following: midi in arrives-> note on and pitch are desumed from the incoming message-> note on is delayed while pitch goes straight ahead -> note on arrives to the machine.
a pure data patch to do that is quite easy to program (even tho i have not studied the midi part of pd yet)... i assume that it's easy also to send midi from ableton live into pd and then to the serial program... some midi patching program is avalaible for almost all platforms... have you thought about it? i reckon it would put some delay onto the execution of the robot, but some delay it's already into the mechanism so alittle more could be tolerated.

i saw him live too: he was really amazing, it was one of the most interesting live show i had the chance to see in years

Recent blogs: first blog!

11/13/07 + jp

it would be quite a long delay. maybe 1/8 note or at least 1/16 note depending on the distance to the next position. to be really on time the robot would need to look ahead which is impossible with midi. a quick solution would be to use the pitch information of the previous note to turn after the note on. but this would be quite counter intuitive. another solution would be to introduce ghost notes that determine the position without actually playing (just movement).
but i think i'd rather go for the hardware way. i want to get rid of the computer as a controller anyway. a hardware sequencer designed for the robot could do the look ahead easily.

Recent blogs: institute for transacoustic research live video, vegetable orchestra video nominated for youtube award, my $20 midi synth

11/13/07 + celibacyclub

you need an arm per note

Recent blogs: em411 vimeo group, cc's monome, quixit in irc soon

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