home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.music
- Path: sparky!uunet!spool.mu.edu!agate!doc.ic.ac.uk!daresbury!mrccrc!crc.ac.uk!pgardner
- From: pgardner@crc.ac.uk (Phil Gardner x3289)
- Subject: MIDI sustain problems
- Message-ID: <1993Jan22.095139.24777@crc.ac.uk>
- Sender: news@crc.ac.uk
- Nntp-Posting-Host: magnesium
- Reply-To: pgardner@crc.ac.uk (Phil Gardner x3289)
- Organization: MRC, UK
- Date: Fri, 22 Jan 1993 09:51:39 GMT
- Lines: 45
-
- I have encountered a mysterious problem with MIDI sustain, and
- I am currently unable to work out what is happening...!
-
- I have a Roland RD300S digital piano, and a Yamaha SY85 'synth'.
- MIDI out on the RD is connected to MIDI in on the SY. The SY
- responds correctly to MIDI bytes from the RD (note on, note off,
- note number, velocity, patch change, MIDI volume, channel number,
- etc.).
-
- In fact, the SY responds to everything from the RD *except*:
-
- --> SUSTAIN <--
-
- After re-making the appropriate connections, I find that:
-
- 1) the SY sustains the RD
-
- 2) the SY sustains a borrowed DX7
-
- 3) the DX7 sustains the RD
-
- 4) the DX7 sustains the SY
-
- ...and most infuriatingly:
-
- 5) the RD sustains the DX7
-
- Everything sustains everything else except RD sustaining SY.
-
- Swapping MIDI cables makes no difference.
-
- I have looked at the MIDI byte stream via a program running on my
- Atari - each MIDI byte from the RD looks correct, and is *identical*
- to the byte stream out of the DX7 (on/off controller 64, 0=off,
- 127=on).
-
- This is driving me mad! Could it be something weird that appears at
- first sight to be unrelated (e.g. something to do with active sensing
- bytes, running status bytes, or the fact that the RD sends
- zero-velocity-note-on instead of a 'true' note-off) ??
-
- Does anyone have any helpful ideas?!
-
- Phil Gardner
-
-