At 02:17 AM 3/11/99 -0800, you wrote: >How do you control such features in the upgrade? Multitrack looping takes >a >lot of user interface, and the Jamman was pretty spartan even for the >features that it had in the first place. Do you need lots of midi >controllers, then? And how do you tell what it's doing with hardly any >display? Multitrack looping doesn't require much more of an interface, actually. The same set of 20 MIDI program changes control the various aspects of recording and overdubbing: Here is the MIDI program change controller layout that I proposed to Bob Sellon: The first 10 functions operate on a page or global basis: 0 TAP 1 RESET 2 BYPASS 3 LOOP/DELAY MODE 4 START/STOP 5 FADE ALL 6 SELECT PAGE 1 (LOOP 1) 7 SELECT PAGE 2 (LOOP 2) 8 SELECT PAGE 3 (LOOP 3) 9 SELECT PAGE 4 (LOOP 4) The next 10 functions operate on a per channel basis: 10 CLICK ON/OFF 11 SLAPBACK DELAY ON/OFF 12 REVERSE 13 REPLACE 14 LAYER 15 CHANNEL FADE (Individual track fade) 16 SELECT/MUTE CHANNEL 1 (TRACK 1) 17 SELECT/MUTE CHANNEL 2 (TRACK 2) 18 SELECT/MUTE CHANNEL 3 (TRACK 3) 19 SELECT/MUTE CHANNEL 4 (TRACK 4) In addition, the functionality of the right knob, which used to select the time base of the loop, (and used to dump the contents of the memory if it were adjusted while running), has ben significantly changed: Label Description MIDI Channel Selects the MIDI channel to which the system will respond Audio Threshold This sets the signal level at which the system will trigger (start recording, restart playback) if the Operating Mode is set for Sampler. Output Level This a soft controllable output level control. This can be stored if the EEPROM is installed and can also be controlled via MIDI Controller Dry Level This sets the signal level of the dry input signal through the DSP. This is useful if you are using the system "in line" and want to have MIDI control of the dry signal. If used in an effects loop, this is usually set to 0. (note- the dry signal in this mode is summed to mono.)(also note that Mix knob needs to be set for 100% Wet to use the Dry Level control effectively. Slap Time This sets the delay time of the built in slap delay Slap Level This sets the signal level of the built in slap delay. Click Level This sets the signal level of the "Click" (Metronome) Level This sets the signal level of the "Active" Channel Pan This sets the "Pan" (left/right position) of the signal in the stereo output image Echo Divide This defines how the loop size is divided up when the Function is set for Delay. Feedback This sets the amount of the output that is fed back into the input when the Function is set for Delay. Function This defines which "Function" will become active when the TAP button is pressed (after the initial loop is "tapped" in). Operating Mode This defines the global Operating Mode of the system. Num Beats This defines the number of beats that will be assigned to the loop. This effects the "Click" and MIDI clock in and out. Page This selects the current page for editing (pressing TAP makes it "Active"). Channel This selects the current channel for editing (pressing TAP makes it "Active"). ........................................................................... But they are useless. They can only give you answers. -Picasso, on computers.