Software History - Alesis quadraverb Service Manual

10.0 Software History

DATE VERSION
1/15/89 1.00
1/23/89 1.01
2/22/89 1.02
3/8/89 1.03
11/30/89 1.05
3/8/90 1.07
8/10/90 2.00
Alesis QuadraVerb Service Manual------
COMMENTS
1) First production release
1) Added test routines for production testing, including RAM, ROM, LEDs, MIDI, and
CLIP tests.
1) Fixed bug that caused a gated effect to be heard on graphic EQ and delay mode
programs if the previously selected program was a gated program.
2) Fixed bug that caused a volume drop in the mid band EQ if the frequency was
9874Hz, amplitude +14.00 dB, and bandwidth of 2.55 octaves.
3) Default setting for direct signal level changed to 50 from 99.
4) Default setting for reverb level changed to 99 from 50.
5) Fixed bug that caused the bypass level of lezlie programs to be unpredictable. Now,
the bypass level will be the same as the lezlie level.
6) All 90 factory programs updated to newer versions.
1) Changed bypass level of direct signal so that the master effect level would be used
to scale the bypass level if the current program did not have any direct signal in it.
2) Changed default mix settings of the last 10 programs (90-99) so that direct level is
50 (instead of 99), delay is 50 (instead of 40), and reverb is 99 ( instead of 40).
3) All 90 factory programs updated to newer versions.
1) Software version accommodates new hardware in which VCA after DAC is
removed. This means that the master effects level is controlled by scaling the
amplitude of each effect in software, instead of changing the VCA level. If this
software is used with older hardware, the VCA will be left full open, so that the
operation will be the same as with the newer hardware.
2) When changing programs with bypass on, the dry level will now change with each
program to reflect the level of the dry signal in that program.
3) When a program is stored, the display now reads "PROGRAM STORED" instead
of "PROGAM STORED".
1) The 11 band graphic EQ algorithm has been modified to decrease the noise present
when one of the bands between 250Hz and 16KHz was set to a few dB of cut.
2) The duty cycle of the EQ cursor flashing has been changed to improve its visibility.
1) Quadraverb Plus first release. Too many features to describe.
16 08/13/04