| 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 |
I think this question may have been posed before, but I never remember getting a clear idea. Is sustain (as in sustain or hold pedal) a function of note-on? Or is it a separate control? I say this because I know of at least two keyboards that will not transmit sustain pedal info. Yet I was looking at my CZ101 MIDI implementation chart and didn't see any option for sustain reception. (This may have been because it doesn't have a hold pedal jack). Will all MIDI keyboards recieve sustain pedal data, but only some will transmit it? My purpose in asking is that I'm looking at an additional keyboard to drive the CZ, but I want to know whether sustain pedal will be recieved by it. Dan
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 608.1 | not in note on. | GNERIC::ROSS | untitled | Tue Dec 16 1986 15:38 | 14 |
sustain pedal transmitted in 'controller change' message
packet.
Status
controller #
controller value
Looks like de-facto controller number is 40 hex and values
0,127 (off, on) have been accepted for sustain.
My CZ drives yamaha and roland boxes....thats one direction...
rr
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| 608.2 | Yeah, well, um, what does that mean... ? | AKOV68::EATON | Impressionable Youth | Tue Dec 16 1986 16:05 | 0 |
| 608.3 | Hey, hold that note! | BARNUM::RHODES | Tue Dec 16 1986 16:45 | 8 | |
I thought that in MIDI, sustain is the lack of note-off generation/transmission when a finger is removed from a key. When the sustain pedal is lifted, an 'all notes off' message is generated/sent. Am I all wet? Todd. | |||||
| 608.5 | two ways | SAUTER::SAUTER | John Sauter | Tue Dec 16 1986 17:52 | 20 |
There are two ways to do sustain in MIDI: either defer transmitting
note-offs or use a separate controller. The sustain controller was not
defined in the original MIDI spec, so old keyboards and sound modules
won't implement it. (Lots of new devices won't implement it either, of
course, particularly if they don't have a sustain pedal.)
If it is implemented in the keyboard by deferring the transmission of
note-offs, then all MIDI sound modules will support it. However, with
this implementation using the sustain pedal cannot be distinguished
from holding down the keys. If your sound module also doesn't
distinguish then there is no problem; I think the sustain control was
added in anticipation that some sound modules may wish to treat these
cases differently.
You can't ever "just send all-notes-off", because sound modules
aren't obligated to pay any attention to this message. Instead
you must send specific note-off messages for every note that is
being sustained when the pedal is released (and which is not still
being depressed, of course).
John Sauter
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