Tascam 2488 MIDI Control Manual

							2488 Digital Portastudio™
MIDI Parameter Mapping
v0.2 - April 15, 2004
[email protected]
THIS DOCUMENT IS FOR EXPERIENCED MIDI USERS ONLY.  This document is
written under the presumption that the reader has created a MIDI controller maps
in the past, or has the equivalent understanding of MIDI controllers. This allows the
advanced user to cut to the chase on the programming, rather than scan past
pages of minutae on what controllers are, what parameter ranges are, etc.  If you
are a beginner on this subject, rest assured that TASCAM is planning to release a
more detailed document with more explanation at a later time. 
						

							Setting the 2488 for External MIDI Control
MENU > SYNC/MIDI > REMOTE
This menu decides what external control is going to be allowed.  The key
settings for external MIDI control are:
MIDI IN - Selects target for incoming MIDI note messages and control parameters
MODE:
OFF: Ignores messages
TG: Sends all messages to the internal General MIDI Chip
REMOTE: Interprets incoming messages for mixer automation
REMOTE CONTROL - Enables/Disables Specific MIDI Messages
PROGRAM CHANGE SCENE: Allows scene libraries to be recalled
PROGRAM CHANGE EFF: Allows effect presets to be recalled
CONTROL CHANGE: Allows individual parameter control over effects/mixer.
For the purposes of external control for mixer automation, the MIDI IN MODE
should be set to REMOTE, and all of the REMOTE CONTROL settings should be ON. 
						

							2488 Parameter Banking
One of the challenges in the 2488 was to overcome the mismatch between
mixer channels and MIDI channels.  The 2488 actually has 32 channels, and there
are only 16 MIDI channels.  The engineers dealt with this by offering a special MIDI
command to shift the target of the MIDI commands in blocks of 8 channels. This
banking concept is used not only with mixer channels, but also with varoious
effect processors, and other functions.  (The various bank switches do not affect
each other though - mixer banks and effect banks are independent.)
---------:---------------:---------------:---------------:---------------:
MIXER CH :               :  1 1 1 1 1 1 1:1 1 1 2 2 2 2 2:               :
         :1 2 3 4 5 6 7 8:9 0 1 2 3 4 5 6:7 8 9 0 1 2 3 4:A B C D E F G H:
---------:---------------:---------------:---------------:---------------:
MIDI CH  :1 2 3 4 5 6 7 8:1 2 3 4 5 6 7 8:1 2 3 4 5 6 7 8:1 2 3 4 5 6 7 8:
---------:---------------:---------------:---------------:---------------:
BANK     :       0       :       1       :       2       :       3       :
---------:---------------:---------------:---------------:---------------:
The same volume control message (parameter 7) on channel 1 can affect
channel 1, 9, 17, or INPUT A.  The destination depends on which bank was last
activated.  (The bank commands does not need to be sent each time.)  Just to
make sure the concept is clear, a chart is given below to offer an example of how
this works.  Youll notice that MIDI channel 15, controller 0 is the controller used to
change between the banks of channels for MIDI control.
:-------:------:------:------:-------------------------------------------:
: SEND  : MIDI : CNTR : VAL  :  RECOGNIZED FUNCTION                      :
: ORDER : CH   : #    :      :                                           :
:-------:------:------:------:-------------------------------------------:
:    1  :  15  :  00  :    0 :  Select Mixer Bank 0 - Channels 1-8       :
:    2  :   1  :  10  :  127 :  Set PAN on CH1 to hard right             :
:    3  :  15  :  00  :    0 :  Select Mixer Bank 1 - Channels 9-16      :
:    4  :   1  :  10  :  127 :  Set PAN on CH9 to hard right             :
:    5  :   4  :  10  :   64 :  Set PAN on CH12 to center                :
:    6  :  15  :  00  :    0 :  Select Mixer Bank 0 - Channels 1-8       :
:    7  :   8  :  07  :  100 :  Set VOLUME on CH8 to nominal (0dB) level :
:-------:------:------:------:-------------------------------------------: 
						

							Mixer Channel Controls
Mixer channels 1-24 and inputs A-H all offer individual control, using the
bank switching method explained previously.  The parameters are listed in the chart
on the next page.  Some key notes on it are below.
Tone Generator - Does Not Bank
You may notice that the Tone Generator mixer channel also offers the same
functions, including the 3-band EQ, effect sends, volume, etc.  The audio channel
for the tone generator will receive MIDI control messages on channel 13 at any
time, independent of bank switching for normal channels.  Keep in mind that this
only affects the mixer channel that is fed by the Tone Generator - TG.  This is not
affecting the individual channels inside the Generator.
The 2488 does not allow you to have external control over every internal
Tone Generator function and the 2488 mixer controls at the same time.  On page 2
of this document, mention is given to set MIDI IN MODE to REMOTE, which routes
MIDI control messages to the mixer, instead of the General MIDI chip.
Stereo Bus & Aux Send Masters - Does Not Bank
Like the TG channel, the Stereo bus has a fader, 3-band EQ, and so on.  For
any functions applicable on the Stereo or Master Effects Send, those will be active
on channel 16.  Like the Tone Generator controls, the Stereo bus controls are
independent of bank switching.  These functions are active at all times on MIDI
channel 16.
In the chart, parameters that will map to the Stereo Bus functions are
labeled ST.  The functions that map as Aux Send masters are labeled MST. 
						

							:-------------:------:-------:---------------------------:-------------:
: PARAMETER   : CONT : RANGE : DESCRIPTION               : APPLIES TO  :
: NAME        : #    :       :                           :  TG  :ST/MST:
:-------------:------:-------:---------------------------:------:------:
: CH BANK     :  00  : 0-  3 : CHANNEL 15 only;  0=1-8,  :      :      :
:             :      :       : 1=9-16, 2=17-24, 3=A-H    :      :      :
:-------------:------:-------:---------------------------:------:------:
: FADER LEVEL :  07  : 0-127 : 0=-oo, 100=0dB, 127=+6dB  :  X   :  ST  :
: PAN         :  10  : 1-127 : 1=L63, 64=C, 127=R63      :  X   :      :
: PAD/GAIN    :  11  : 0-  8 :                           :  X   :      :
: PHASE INV   :  84  : 0-  1 : 0=NORMAL, 1=INVERT        :  X   :      :
:-------------:------:-------:---------------------------:------:------:
: LOW FREQ    :  16  : 0- 31 :                           :  X   :  ST  :
: LOW GAIN    :  17  : 0- 24 : 0=-12dB, 12=0dB, 24=+12dB :  X   :  ST  :
: MID FREQ    :  18  : 0- 63 :                           :  X   :  ST  :
: MID GAIN    :  19  : 0- 24 : 0=-12dB, 12=0dB, 24=+12dB :  X   :  ST  :
: MID Q       :  20  : 0-  6 :                           :  X   :  ST  :
: HI FREQ     :  21  : 32-63 :                           :  X   :  ST  :
: HI GAIN     :  22  : 0- 24 : 0=-12dB, 12=0dB, 24=+12dB :  X   :  ST  :
: EQ IN/OUT   :  80  : 0-  1 : 0=OUT, 1=IN               :  X   :  ST  :
:-------------:------:-------:---------------------------:------:------:
: LOOP FX LVL :  23  : 0-127 :                           :  X   : MST  :
: EFF1 LEVEL  :  24  : 0-127 :                           :  X   : MST  :
: EFF2 LEVEL  :  25  : 0-127 :                           :  X   : MST  :
: LOOP FX POS :  81  : 0-  2 : 0=OFF, 1=PRE, 2=POST      :  X   :      :
: EFF1 POS    :  82  : 0-  2 : 0=OFF, 1=PRE, 2=POST      :  X   :      :
: EFF2 POS    :  83  : 0-  2 : 0=OFF, 1=PRE, 2=POST      :  X   :      :
:-------------:------:-------:---------------------------:------:------:
TG  - TONE GENERATOR AUDIO CHANNEL RECEIVES ON MIDI CH 13
ST  - STEREO BUS RECEIVES ON MIDI CHANNEL 16
MST - AUX MASTER CONTROL RECEIVES ON MIDI CHANNEL 16