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Elektron Musical Instruments

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Timing issue when MD is triggered via MIDI

2007-05-06 by Leo Cavallo

Hi all

To make the timing thread even more interesting I just found out that
when my MD-UW is triggered by my MPC4000 (playing a simple 120 bpm
sequence containing a single MIDI note triggered every quarter note)
it shows a very peculiar timing pattern.

(length in samples between each quarter notes @ 120bpm)
...
22144 x
22016
22017
22016
22144 x
22016
22017
22017
22144 x
22017
22016
22015
22144 x
22016
22016
22017
22144 x
.... 

Can you see the pattern?
Some other tests confirmed that the 128 samples lag is not coming from
the MIDI out of the MPC. 

Considering that in this specific case the MD sequencer is not even
running it looks like the lag comes directly from the MD sound engine. 

Interestingly enough the lag stays the same independently of the type
of sound triggered (synthesized sound or UW sample).

I don't wanna draw any conclusion but this test seems to confirm that
the "magic" factor in the sequencer is only partially responsible for
this whole timing issue. 

The sound engine clearly plays its part as well. 

Best Regards
Leo

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