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Emu XL-7 & MP-7 User's Group

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Message

Re: CC# or sysex string needed to Play/Stop the CS?

2005-05-27 by steve_the_composer

Everyone is right!!! And let me add one more piece:

Midi Time Clock (0xF8) accounts for the synchronization betweeen the 
keyboard and the E-Mu.

The keyboard sends out an FA byte to start the clock which starts 
the E-Mu sequencer.  If you have OS2.0 and the E-Mu is set to 
external time clock, it slaves in sync to the midi clock master 
because the keyboard is sending out a stream of F8 bytes. When you 
press STOP, the synth then sends out and FC byte to stop the E-Mu 
sequencer.

The more F8 bytes in the midi stream, the faster the clock. (And 
vice versa: the fast the clock, the more F8 bytes placed into the 
midi stream.)

Midi also includes commands for song select and song position 
pointer, but the E-Mu does not implement those.

If you have two pieces of gear that implement midi time code, both 
should have the ability to be either master or slave. 

As for MMC [Midi Machine Control], I think I tried that (generating 
code from Cakewalk software) and the E-Mu did not respond.  I don't 
know anything about a "25's" (whether it uses MMC or MTC).

Hope this helps.

--Steve

--- In xl7@yahoogroups.com, Aaron Eppolito <synthesis77@y...> wrote:
> Right, but Szonyi was illustrating the MMC stop command (which I 
don't
> think the XL-7 supports).  All you need is:
> MIDI Song Start (0xFA) - Play from beginning
> MIDI Song Continue (0xFB) - Play from current location
> MIDI Song Stop (0xFC) - Stop at current location
> 
> There's a screen in the MIDI menu to enable/disable the reception 
of
> start/stop that you'll need to enable if it's not already.
> 
> -Aaron
> 
> --- Greg Waltzer <egwaltzer@c...> wrote:
> > Please note that the sysex start and stop bytes are for 
delineating
> > the 
> > beginning and end of the sysex message.
> > They are not the same thing as MIDI sequencer start and stop
> > commands.
> > The XL-7 sends MIDI start and stop when you press the "play" or
> > "stop" 
> > buttons.
> > 
> > Szonyi Andras wrote:
> > 
> > >Command Stations can receive and transmit the general 
start/stop 
> > >MIDI messages. (I have a keyboard with built in basic MIDI
> > functions,
> > >like START/STOP, and it can controll the XX-7 without any
> > synchronizing.)
> > >
> > >
> > >Searched for a description for general midi sysex commands, I 
found
> > this:
> > >
> > >SysEx Command [Type : String] : SysEx Command to send.
> > >Usage : The SysEx Command string must not contain the SysEx 
Start
> > (F0) and 
> > >SysEx Stop (F7) bytes which will be automatically added by the 
MxM.
> > >Hexadecimal characters of the SysEx message must be preceded by 
the
> > '!' 
> > >character. For example, to send the MIDI Machine Control "Stop"
> > command 
> > >for device 1(F0 7F 00 06 01 F7), type the following string 
> > >:"!7F!00!06!01".
> > >
> > >
> > >Other way is to midimonitoring that device's output which should
> > controll
> > >the command station.
> > >
> > >
> > >
> > >On Fri, 27 May 2005, funkjunke wrote:
> > >
> > >  
> > >
> > >>Just wondering if anyone knows the commands for play and stop 
on
> > the
> > >>CS. I'm setting up for a live configuration, and am trying to
> > program
> > >>my remote 25's Play and Stop buttons to control the XL7. It's
> > really
> > >>strange though, I even tried different midi monitors, and can't
> > seem
> > >>to find the code needed to do this?
> > >>Thanks,
> > >>ByronIV

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