From Robin Whittle Sent Fri, Nov 28th 2003, 14:49
From Robin Whittle Sent Fri, Nov 28th 2003, 14:49
Colin f wrote: > But if you buffer clock bytes, and interpolate with a moving average of > their period, you are going to introduce timing errors even in a rock stable > midi clock where there is a sudden change in tempo. This may even be > audible. My use of the term "buffering" may have been misleading. I wasn't suggesting any interpolation etc. My suggestion is not to send out Clock cycles any faster than a particular limit, and if MIDI Clock bytes arrive faster than this, then to keep a count of them and send the Sync Clock cycles as fast as possible until the right number has been sent. While it may be sloppy programming in a sequencer sending out clock bytes faster than is musically needed, it could happen due to the program not getting all the CPU time it needs when it needs it. In any event, that is beyond our control, and a MIDI sequencer will stay in time with the erroneously timed MIDI Clock codes, so a Sync converter should try to do the same. - Robin http://www.firstpr.com.au/rwi/dfish/ Devil Fish mods for the TB-303