| Title: | * * Computer Music, MIDI, and Related Topics * * |
| Notice: | Conference has been write-locked. Use new version. |
| Moderator: | DYPSS1::SCHAFER |
| Created: | Thu Feb 20 1986 |
| Last Modified: | Mon Aug 29 1994 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 2852 |
| Total number of notes: | 33157 |
Occasionally I have a problem with my Prophet 2000 playing notes
or chords slightly out of time when running sequences from my
MC500. It seems to occur at random spots in the songs, and is
a case of the note/chord sounding a 16th or 8th note later than
it should. The few times that I have run sequences with different
keyboards, I have not noticed the problem occuring. Therefore, I
believe it is a problem with the Prophet and it's receiving of
the note information.
Any theories as to what might cause this?
Ross
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 2134.1 | Maybe try another cable? | FULMER::ROBSONB | Fri Nov 03 1989 09:00 | 19 | |
I had a similar problem running a DX7 with an ordinary audio
Five-Pin-DIN cable instead of a "proper" MIDI cable connected to
my sequencer.
The poblem was cured when I replaced the cable, which maybe had
a high resistance conductor and couldn't cope with the MIDI throughput,
especially when there was lots of controller data.
Incidently, I find reasonable quality Five-Pin-DIN audio cables
usually serve as MIDI cables quite well, and I have a STAR Network
using a Phillip Rees' 1X10 MIDI THRU box which eliminates the need
to Daisychain.
Maybe try another cable Ross?
Regards, Brian
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| 2134.2 | Complex Interactions of R, C and L | DRUMS::FEHSKENS | Fri Nov 03 1989 09:45 | 12 | |
The problem isn't resistance (wire is pretty much wire, and resistance
is not the sole determining factor in a cable's bandwidth; capacitance
and inductance are probably more important) as much as it is shielding,
which determines noise susceptibility. Capacitance might be an
issue, but MIDI's 32Kbit/sec data rate is not really that far out
of the audio range.
But the bottom line is, just because the connector's the same doesn't
mean the cable will work.
len.
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