Date: Sun, 24 Sep 1995 03:40:04 -0400 (EDT)
From: Antony Balcerzak <tekpagan@io.org>
Cc: Frederick Pradel <djlace@Direct.CA>, analogue@hyperreal.com
Subject: Re: EL DRUMTRACKS INFERNO

On Sat, 23 Sep 1995, Timothy Pasch wrote:

> 	Here's a question about the drumtraks...can i use it as a Midi/CV 
> interface? There's the midi in, and the clock out, so can someone give me 
> some advice so that I can sync with my ARP sequencer? That would be so 
> great and save me the price of a Pro-2...Thanks-

Well for drumtraks with ALL software versions the answer should be yes.
A clock/synch signal is output  even when the drumtraks has MIDI Clock Input
enabled, so if the ARP will synch to 24/48 ppq and the signal levels are
compatable:

Drumtraks Clock Out
   clock rate:       dc-coupled. For synching to other devices.
                     24/48 ppq.
   clock amplitudeP: 5Vpp

Better yet the Metronome Output is dc-coupled. So it can be used as a low
speed programmable clock output. The metronome will play only on the beat
specified by the time signature (for example, on each quarter note for 4/4).
On the first beat of each loop the metronome is accented and the front panel
blinks. Adjust [METRONOME VOLUME] as desired. This signal is only output in
playback mode (not during record mode).

****************************************************

"HIDDEN FUNCTIONS" Drumtraks software version <= 0_3

****************************************************

MEMORY REMAINING
   Hold [INC] & [DEC] simultaneously.
   Read % remaining in LEFT display.

CLEAR ALL MEMORY
   Hold [7],[8],[9],[INC] & [DEC] simultaneously.

PLAYBACK CLOCK INPUT
   Hold both [TEMPO] switches.
   Press [ENTER].
   To select Clock, use [INC] & [DEC]: ***L***     ***R*** <- LED displays
             Display decimal points:   .     .     .     .
                                       MIDI  96    48    24

PLAYBACK CLOCK OUTPUT
   If there is an external clock input (i.e. not MIDI), clock output is
   disabled. To select 24/48 ppq.

   Hold [ENTER].

   For 24 ppq square wave, press [1].

   For 48 ppq (20 microsecond pulse), press [2].

PROGRAM DUMP REQUEST
   Do the following to send a MIDI program dump request. If a MIDI device
   recognizes the request, it will dump a program ( a set of patterns and
   songs ) to the drumtraks.

   Hold [ENTER].

   Press [3].

MIDI CHANNEL SELECT
   Hold [ENTER].

   Press [0].

   Read current channel number in display.
   To select new channel ( 1-16 ), while holding [ENTER] & [0],
   Use [INC] & [DEC].

ENABLE PADS OUT MIDI
   Hold [ENTER].

   Press [4].

DISABLE PADS OUT MIDI
   Hold [ENTER].

   Press [5].

CLOCK TEST
   For service only. Hold [ENTER] & [8] - connects CLOCK IN to CLOCK OUT.
   Halts if bad.

MIDI TEST
   For service only. Hold [ENTER] & [7] - connects MIDI IN to MIDI OUT.
   Halts if bad.

"May Peace Prevail On Earth"
 
********************    _/\_   "We have sought for firm ground and found none.
* Antony Balcerzak *   _\  /_   The deeper we penetrate, the more restless
* tekpagan@io.org  *   \_  _/   becomes the universe; all is rushing about
********************     ||     and vibrating in a wild dance."       MAX BORN