EML 400 sequencer in the midi world

[Rob]

----- Original Message -----
From: Paul Perry <pfperry at melbpc.org.au>
To: <synth-diy at mailhost.bpa.nl>
Sent: Friday, February 25, 2000 3:50 AM
Subject: Re: EML 400 sequencer in the midi world


> At 09:11 PM 25/02/00 PST, danial stocks wrote:
>
> >MIDI clock = 24 pulses per quater.. so if a drum sound etc triggs off the
> >midi clock pulse, when 24 such events have occoured, the midi dev will
have
> >advanced 1/4 note thru its sequence.. getting the midi dev to step to the
> >next actual program note on each trig would be very tricky, but just to
send
> >clock pulse on trig should be easy - esp if you dont want to send any
otrher
> >midi codes - the clock code = 1111110000 [incl start+ end bit] - which in
> >effect is a 128 us low pulse - easy to produce..
>
> If you just send the 1111110000 code 24 times in succession (with a little
gap)
> between them) then you will have advanced your midi device by one quarter
note.
> For some applications, I expect this will work fine, you dont always need
your
> F8s to be evenly spaced.
>

Err, unless you are trying to sync some cheaper roland and boss drum
machines. The tr505 and some of the boss units are very picky and will have
a noticeable lag if the F8s dont churn out at a fairly constant interal.
Depending on the program, the sync could have "groove" or totally lose a
16th after a few measures.
Give it a try sometime. I was using Vision for Windows, and for some reason
the roland/boss machines were just terrible, but for some reason everything
else syncd just fine.

Rob