The TINYSIZER Midi to Cv, gate and sync analog modular synthesizer module
The TINYSIZER Midi Section is a MIDI-CV / SYNC Interface, with which you can control
any module which has CV and gate / trigger input sockets by MIDI.
It provides a pc editor, 4 CV outs, CV 1 MIX IN to mix pitchbend or other signals to the CV 1, 6 GATE outputs
(4 gates for controller funktion)
The interface also has a clock output, controlled by MIDI clock. This can be divided down
to provide a variety of clock outputs, and enable older sequencers or drum machines to
be synced to Midi with
GATE 5 start and stop trigger,
GATE 6 for the midi clock signal.
The red LED show
all the receiving Midi data and the
incomming gates,sync or trigger signals. Midi channels
can be learn by touching the
pushbutton switch.
Midi knowledge base from Wikipedia.
Use the back button  in your browser to navigate in Wiki.
Features:
(The firmware v2.71 is the Basic in the Tinysizer.)
4 CV outputs + 6 Gate/Trigger outputs assignable to MIDI messages
Voltage range CV 0/+10V - Gate =0/+5V TTL logic
1V/Oct Pitch CV or Table of 48 independantly tunable notes
Midi Clock integrated with divide by N and sequencer Start/Stop/Continue Gate/Trigger
Trigger /Gate mode with adjustable pulse time for all Gate ouptuts
All parameters are editables by System Exclusive messages
"MIDI Learn" to setup quickly MIDI channel, reference note & controler
Flash Memory to keep config setup when power is off.
Config software (PC) available to edit MCV876's setup by SysEx messages
Downloadlink to the MCV 876 PC-EDITOR v 2.71 from Marc Bareille
The picture below schow up the Tinysizer basic CV and Gate options.
Realtime controller test and midi device configuration.
Note table "draw" editor.
The Led
It is a multi purpose led! At the first power on the led blink
3 times short + 2 long . It means "All is ok" ," no config found in Flash memory"
and "config by default is loaded instead". It is an easy first boot feature.
When config parameters are already set into the Flash RAM, the led blink just
3 time at power on. Then the led will monitor all incoming recognised MIDI status
bytes.The led also blink 3 long times if the interface receive the "Write To Flash"
sysex message.
When this message is received, all MCV876 parameters are writen into
the flash RAM. So the MCV876 can recall setup even after a long power off ... When the
interface is in MIDI Learn mode, the led stay on, until a MIDI message has been received and learned by the interface.
The firmware V3.03 allow to exit the learn mode by pressing again the learn button .
"MIDI learn" switch
The most simple way to setup the interface MIDI channel and reference note /controler
number
Here is how it works:
When you push the MIDI Learn switch , the led stay on and the MCV876 is in Learn Mode
waiting to receive a MIDI message containing MIDI channel information. When a message
arrive ( you play a note on the master keyboard for example) , the MIdI channel is
extracted , compared to the actual interface MIDI channel and set to this new value
if different.
If the MIDI channel of the message is identical to the interface one,
and if the message received is a MIDI note ON message, the interface extract the
MIDI number of the note played and set this value as the reference ( base) note.
This allow to transpose the MCV876 to any note on the keyboard. The reference note
is the Lowest note the interface can play ( digital zero).
If the interface receive a MIDI controler message in "Learn Mode" instead of a Note
message , the controler number is assigned to CV3 ( DAC2) output and writen to Flash
RAM...
PlayMode
The firmware v2.71 PIC16F876 is mono-channel = all messages are received on an unique channel .The interface "Play-mode" define the CV/Gate 1 to 4 output setup and associated MIDI messages.
MIDI Clock & Sequencer Start/Stop
Gate outputs 5 & 6 are independant of the "Play" mode :
Gate5 is the MIDI Start/Stop output ( assignable to Controller,
velocity with the firmware v2.72 only )
Gate6 is the MIDI Clock ouptut ( assignable to Controller, velocity with the firmware
v2.72 only )
The MCV876 receive real time MIDI clock messages (0xF8) and Sequencer Sart/Stop/Continue
messages . MIDI clock and Start/Stop are assigned to Gate outputs 5 and 6. The MCV876 also
include a MIDI clock divider with a divide range comprised between 1 and 255. Pulses length
are tunable for compatibility with most of analog drumboxes, sequencers ...
Pitch Bend
The Pitch bend is implemented :
Independantly assignable by software and sysex message to CV2,CV3 or CV4
Pitch bend is centered on digital data value 0x2000 = +5V ( half scale in 0..10V mode ).
If Pitch Bend is assigned to a CV output , this DAC do not receive MIDI controlers anymore
Pitch bend and Velocity can be combined freely one CV output
Pitch Bend DAC range is 0..10V by default.
All MCV876 parameters are editable by MIDI exclusive system messages.
They can be send by the PC config software or written/recorded into patterns on your
favorite sequencer/midi editor sofware ( Mac User's...) . Sysex messages are also used by
the MCV876 MIDI Remote Control Unit .
Special thanks to Marc Barreille, the inventor of the Midiface.
Plaese look at his web for more details...
Why TINYSIZER?
I Think, It´s One Of The Smallest Patchable Mini Analog Modular Synthesizer In The World!
- analog Tommy -
The maker of:
SEMTEX XL INSEQT MEGAPOLE FILTERBOX CLOXBOX GROOVE GENERATOR SIMPLESIZER ...
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