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

--- steve_the_composer <smw-mail@...> wrote:
> "The extremely flexible yet easy to use 4 layer instrument 
> structure . . . ." would work well in the intro.

Actually, an "instrument" is almost synonymous with "voice".  A
"4-layer *preset* structure" is what the line should read.  Each preset
has up to four instruments (if you don't count links).  Each instrument
takes 1 voice for mono, 2 voices for stereo/chorus, 2 voices for 12th
order, and 4 voices for 12th order stereo/chorus.

> Preset chorus on all 4 layers of 1 preset + 12th order filters
> on all 4 layers of 1 preset ===> 16 voice polyphony.

16 *NOTE* polyphony.  Voice = one of 128 audio channels.  Note = a key
hit on the keyboard.  But while we're at it, why stop there?

All four layers chorus and 12th order, with two linked presets or
4-layer chorused and 12th order filters...  5 note polyphony!


> Now that were all smiley, some serious questions remain:  (1) where 
> do I find out which samples/rom instruments are stereo samples and 
> therefore cut polyphony in half and (2) what if any polyphonic 
> reduction occurs with the use of multi-samples such as kits?

Nowhere, and none.  =)  VERY few, if any of the samples in the XL-7 are
stereo, and I believe that goes for most of the other ROMs as well.  I
think the 16 Vln string sections in the Virtuoso might be stereo...

And, since polyphony is only used by voices actually sounding, having
lots of samples spread out in a drum keymap does not use extra
polyphony.

> And on a different subject:  remote control via sysex seems 
> incomplete--that is, most but not all buttons seem to be 
> controllable.  (1) Am I right? (2) If I am, any possibility that all 
> of the buttons will be controllable in a revised OS--particularly 
> those related to the sequencer, eg. trnasport, pattern selection, 
> looping functions, etc. (3) If I'm wrong, where can I get the 
> complete list of commands?  (The latest sysex manual I have is 2.2.)

(1) I can't remember  (2) if they're not already, doubtful  (3) try
turning on transmit front panel commands, hooking the XL-7 up to an
external sequencer or MIDI analyzer (like MIDI-Ox or SendSX), and
pressing each button in turn.  You should be able to see if it
transmits any sysex and if so, what it is.

-Aaron

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