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RE-303 CPU
SONIC-POTIONS
!!! PRELIMINARY DRAFT !!!
v 0.911
WORK IN PROGRESS
RE-303 User Guide 1
RE-303 User Guide 2
Intro
Intro
The RE-303 CPU was developed for the DinSync.info RE-303 replica.
The basic sequencer concept is the same as on the original 303. Pitch and Time information is stored independently. There are time steps that only hold step (note on) tie
(note length) and rest (no note) information. The pitch steps store the note value, accent, slide and transpose information.
Quickstart
The random way
The fastest way to get some sounds out of your new CPU is to use the random pattern generator.
• Make sure you are in Pattern Write mode (rotary mode switch)
• Press FUNCTION to make sure you are in normal mode.
• Hold CLEAR and press the ACCENT button. A random pattern is generated.
• Press RUN and enjoy!
The manual way
• Make sure you are in Pattern Write mode (rotary mode switch)
• Hold FUNCTION and press C2 to set the pattern length to 8 steps
• Press PITCH to enter pitch mode
• Use the note buttons to enter a few notes
• Press TIME to enter time mode
• Use the DOWN , UP and ACCENT buttons to set steps, ties and rests
• Hit RUN and enjoy!
RE-303 User Guide 3
Control scheme
Control scheme
The 303 has four modes:
• Write Track – edit and arrange tracks by chaining up to 64 patterns
• Play Track – play previously created tracks
• Write Pattern - create and edit patterns
• Play Pattern – play previously created patterns and modify them live
Each mode has multiple control layers that give the buttons and LEDs other functions.
These are
• Normal mode
• Pitch mode
• Time mode
• Clear mode
• Config mode
These modes are accessed by pressing or holding the corresponding button. An in depth description of these control layers is given in the next chapters where we take a closer look at the four modes.
Pattern Write Mode
In this mode you create and edit patterns.
Auto Exit
In pitch and time mode the machine will automatically return to normal mode when the end of the pattern is reached.
RE-303 User Guide 4
Pattern Write Mode
Normal Mode
Normal mode is indicated by a lit normal mode LED. You can select the active pattern to edit using the 8 PATTERN BUTTONS and the A/B pattern section using the ACCENT and
SLIDE buttons. This gives access to 16 patterns per pattern group.
When the sequencer is running a chaselight is shown on the pattern button LEDs.
Switching Patterns
The active pattern is indicated by a flashing LED. While the sequencer is stopped, pattern changes are instantaneous. If the sequencer is running, pattern changes are queued until the end of the bar. Queued Patterns are indicated by a constantly lit LED.
Pattern length
There are various ways to set the pattern length (1 to 16 Steps). Length is edited in function mode . This mode is active while the FUNCTION button is held down.
Here are the track length key combos:
Hold FUNCTION = show pattern length
FUNCTION + tap DOWN = tap pattern length (8xDOWN => pattern length 8) like on the original 303
FUNCTION + note buttons = set pattern length directly. white = 1-8/8-16 depending on C# or D#
FUNCTION + BACK/NEXT = decrease/increase pattern length one step at a time
FUNCTION + ACCENT = half pattern length
FUNCTION + SLIDE = double pattern length
RE-303 User Guide 5
Pattern Write Mode
Triplets
Triplet mode is used to create patterns in a 3/4 measure. In the normal 4/4 measure a complete bar has 16 steps with 6 clock pulses used for each step. The gate is on for 3 clocks and off for the other 3 clocks.
In triplet mode a bar has a maximum of 12 steps and uses 8 clock pulses for a step. The gate is on for the first 5 and off for the last 3 clock pulses of the step, so you get a different gate length and tempo compared to the 4/4 mode.
To turn triplet mode on or off press FUNCTION + UP
While the FUNCTION key is held, the UP LED will indicate if the triplet mode is active or not.
Pattern Chain
It is possible to chain up to 8 patterns from the same pattern group and section.
To create a chain:
• hold down the first pattern select button to select chain start
• Press the second pattern button to set the chain end.
All patterns in between will be played one after another. Chained pattern LEDs will light up, playing pattern LED will flash.
This also works for live recording mode!
That is, you can chain up to 8 patterns to record a 8 bar pattern in one go.
Pattern Direction
The pattern playback direction can be changed and is saved with the pattern.
Use the UP and DOWN buttons In normal mode to set the playback direction:
• DOWN = backward, down LED lit
• UP = forward, up LED lit
RE-303 User Guide 6
Pattern Write Mode
• UP + DOWN = pingpong, up and down LED lit
• DOWN + UP = random, up and down LED blinking
Time Mode
Time mode is indicated by a lit time mode LED. Here you can edit the timing information of the pattern. The note LEDs will show the active step number and you can step forward an backward through the sequence with the NEXT and BACK buttons.
The down, up and accent LEDs will show the value of the active step and the respective buttons are used to change the value of a step.
Some notes on editing time sequences
The time sequence is composed of 3 basic values:
• Step ( DOWN ) – A note is played
• Tie ( UP ) – the previous note is sustained
• Rest ( ACCENT ) – silence/pause
It is important to remember the 303 sequencer concept of slit time and note information.
You can think of it as 2 separate sequencers. One holding only the time information about active steps and note durations, the other holding only the note/pitch information.
Only when a Step value is set in the time sequencer, the pitch sequencer is advanced.
Here is an example:
Time sequence
Pitch sequence
STEP
C
REST
D
REST
E
STEP
F
TIE
G
There are only two STEP events in the time sequence. On a classic step sequencer with combined pitch and time information you would expect that the two notes C and F would
RE-303 User Guide 7
Pattern Write Mode play. But since the pitch sequencer on the 303 is only advanced on STEP events in the time sequencer, only the two notes C and D will play.
Active steps, ties and rests are placed like in a ‘normal’ 16 step sequencer grid.
Pitch mode
Pitch mode is indicated by a lit pitch mode LED. Here the pitch information of the pattern can be edited and note attributes (accent, slide and transpose) can be set.
The note buttons show the active step/position in the pattern.
/* - Pitch mode LED lit
* - steps indicate selected pitch of active steps
* - accent, slide, up/down show active attributes
*/
Pitch, accent, slide and transpose are set in the pitch sequencer.
When the seq is stopped, entered notes are played.
Note entry
- Step buttons enter notes
- auto advance
- hold acc,slide,up/down while pressing note to add attributes
Note attributes
- hold next or back to show step information and step through the sequence
- pitch is shown on step buttons
- attributes are shown
- attributes can be toggled with their buttons
RE-303 User Guide 8
Pattern Write Mode
Live Recording Mode
- no mode led lit
- chaselight
Allows to record notes into the running sequencer either by playing the 303s note buttons or a MIDI controller.
To enter live recording mode press the BACK button while the sequencer is running in normal mode. To return to normal mode pres BACK or the FUNCTION button.
Recording with internal buttons
- record notes using note buttons
- add accented or transposed notes by holding acc/up/down before pressing note button
- slides are recorded by playing legato
Recording MIDI
MIDI can be used to input notes. A note on velocity above 65 plays an accented note. To add slides play 2 notes legato.
Classic 303 Tap Time Mode
The TAP button can be used to tap in time information (step and tie events)
live pitch mode
- Pitch led lit
- chaselight
-
- accent slide up down
- hold pitch -> live pitch mode
- acc/slide/up/down can be toggled and viewed via the buttons
RE-303 User Guide 9
Pattern Write Mode
Chain Recording
If a pattern chain is activated before entering live recording mode, sequences up to 8 patterns (128 Steps) can be recorded in realtime.
Clear Mode
Clear mode is active while the CLEAR button is held.
Pattern Randomizer
A random pattern can be generated in the current active slot.
CLEAR + ACCENT = randomize all
CLEAR + TIME + ACCENT = randomize time
CLEAR + PITCH + ACCENT = randomize pitch
Forcing random patterns to a scale
The random patterns generated can be forced to major and minor scales. To select the scale, enter the randomizer config page by holding the FUNCTION key and then pressing the PITCH key. The function and pitch LED will light up while the config page is active.
You can now select if you want a major or minor scale with the UP and DOWN buttons.
UP = Major
DOWN = Minor
The corresponding LED on the buttons will show which mode is currently active.
The 12 NOTE BUTTONS select the base note. The note LEDs will show the currently selected base note.
The SLIDE button is used to turn the force to scale function on and off. If the slide LED is lit, the scale function is active.
RE-303 User Guide 10
Pattern Write Mode
Here is an example how to limit the pattern randomizer to F-Minor scales
• Hold down FUNCTION and press PITCH to enter config page
• check if force to scale is active (slide LED lit)
• if not press SLIDE to activate it
• select MINOR by pressing the DOWN button.
• Down LED lights up to indicate the selected minor mode
• press the F button on the internal keyboard to select the base note F.
• All generated patterns are now forced to F-Minor
To turn the foce to scale function off again, enter the config pasge and press the SLIDE button, so the LED is off again. Patterns will now be generated completely random again.
Clear Pattern
To clear pitch and time information on the selected pattern, press CLEAR + PATTERN
Press CLEAR + TIME + PATTERN to only delete the time information.
Press CLEAR + PITCH + PATTERN to only delete the time information.
Pattern Copy/Paste
A Pattern can be copied to another slot.
CLEAR + C# + PATTERN copies the pattern data from the selected pattern slot.
CLEAR + D# + PATTERN pastes the previously copied data to the selected pattern slot.
CLEAR + D# + Pitch + PATTERN = paste pitch info
CLEAR + D# + Time + PATTERN = paste time info
RE-303 User Guide 11
Pattern Write Mode
Rotate Pattern Steps
CLEAR + UP = rotate all right
CLEAR + DOWN = rotate all left
CLEAR + PITCH + UP = rotate pitch right
CLEAR + PITCH + DOWN = rotate pitch left
CLEAR + TIME + UP = rotate time right
CLEAR + TIME + DOWN = rotate time left
Pattern Play Mode
Normal Mode
/* - Normal Mode LED lit
* - white notes show playing pattern (blinking)
* - light next pattern/chain
- pattern section
*/
Pitch Mode
- led pitch
- steps = transpose
- acc, slide up down
RE-303 User Guide 12
Pattern Play Mode
AllAccent + AllSlide
Pitch + acc = allAccent
Pitch + Slide = All Slide
Transpose pattern up/down
Pitch + up = transpose octave down
Pitch + down = transpose oct up
Pitch + Note buttons = transpose semitones
Pattern Chain
hold down first white note/pattern button to select chain start then press 2nd white note/pattern button to select chain end.
All patterns in between will be played after one another
Chained pattern LEDs will light up, playing pattern will blink
Track Write Mode
Normal Mode
RE-303 User Guide 13
Track Write Mode
- next/back select track step to edit
- note buttons select assigned pattern
- acc/slide select pattern section A/B
- pattern chains can be assigned by holding 1st pattern button and pressing a 2nd one
Pitch Mode
Hold pitch -> pitch mode
- note buttons = semitone transpose (track step transpose, independent of pattern transpose value)
- up/down => octave transpose
Time Mode
Hold Time => time mode
- leds show track step repeats (1-16)
- last step indicator => ACC,SLIDE;UP,DOWN lit
- next/back inc/dec repeats
- down = 1 repeat, up=2, acc=4, slide=8
- time + clear = set current step as last step
- note buttons select repeats (white notes 1-8, black notes = range 1-8 or 9-16)
Clear Mode
Clear Track
- clear + next, then back = clear track
RE-303 User Guide 14
Track Write Mode
Copying tracks
- C# -> track copy
- D# -> track paste
Track Play Mode
############# Track Play ###################
- leds show playing/active pattern
- hold tap/next => show playing track step (realtime update)
- tap+back -> restart track hold pitch -> pitch mode
- all accent, all slide
- LEDs show current transpose value (realtime update) hold time -> time mode
- leds show repeats (realtime update)
- leds show playing/active pattern
- hold tap/next => show playing track step (realtime update)
- tap+back -> restart track
RE-303 User Guide 15
Track Play Mode
Pitch Mode
Pitch mode is active while the PITCH button is held down.
- all accent, all slide
- LEDs show current transpose value (realtime update)
Time Mode
hold time -> time mode
- leds show repeats (realtime update)
MIDI control
While the sequencer is stopped the 303 can be played via MIDI note messages.
Accent
If the MIDI note on velocity >= 65 the note is played accented.
Slide
Legato play of 2 notes causes a slide
SysEx
Pattern SysEx dump
A pattern can be send and received via SysEx to make backups on a computer or sequencer. If a SysEx dump is received while in pattern write mode , the data will be written to the currently active pattern. A pattern SysEx dump always sends the currently active pattern.
To send out a pattern SysEx dump goto Pattern write mode , hold down the CLEAR button and press F# . The pattern data will be send out via the out jack.
RE-303 User Guide 16
SysEx
CLEAR + F# while in Pattern Write Mode = send pattern SysEx dump
Track SysEx dump
Single tracks can be saved and restored via SysEx, too. Similar to the pattern dump above, goto Track Write Mode , hold down CLEAR and push G# to send out the active track. If a SysEx track dump is received while in Track Write Mode , it will be written to the currently active track.
CLEAR + G# while in Track Write Mode = send Track SysEx dump
Bulk SysEx dump
To backup the complete memory of the machine, you can send and receive SysEx Bulk
Dumps. Go either to Track or Pattern Write Mode and press CLEAR + A# to send out a bulk dump.
A bulk dump received while in either Pattern or Track write mode will overwrite the complete memory of the machine (track and pattern data in all banks).
A note on saving received SysEx dumps
A received dump will first be written to the temporary memory of the machine and will not be written to the internal RAM until the sequencer is stopped. So if you receive a dump, you have to start and stop the sequencer to write it to non volatile memory.
If you’ve overwritten some data by accident, you can turn off the machine without stopping the sequencer to restore the previous memory content.
FUNCTION + CLEAR => config mode
Config Mode
The config is saved when leaving config page (press function button again to leave)
RE-303 User Guide 17
Config Mode
MIDI Channel
DOWN = MIDI Rx channel can be selected with next/back keys. channel displayed on LEDs
UP = MIDI TX channel can be selected with next/back keys. channel displayed on LEDs
MIDI Rx
C = MIDI RX on/off
MIDI Sync Rx
D = MIDI sync rx on/off
MIDI Tx
E = MIDI Tx On/off
Timing
F = Internal timing
on = Original Mode
delayed gate offs
off = tight mode
Gate on/off completely same length (3 clocks on, 3 off)
Saving data
Pattern and track data is auto saved whenever the sequencer is stopped and automatically loaded on power on.
RE-303 User Guide 18
Firmware Update
Firmware Update
The firmware can be updated via MIDI SysEx. To update the firmware:
• hold CLEAR while powering up
• the first 4 step LEDs will light up
• The unit is now ready to receive firmware via sysex
• While the data is transmitted the progress is shown on the step LEDs.
• Once the update is done the machine will reboot and the new firmware is ready to use
MIDI implementation chart
Manufacturer:
Sonic Potions
Model: Re-303
CPU
Version:
1.0
Transmit/E xport
1. Basic information
MIDI channels
Note numbers
Program change
1-16
N
Bank select response? (Yes/No)
If yes, list banks utilized in remarks column
N
Modes supported:
Mode 1: Omni-
On, Poly (Yes/No)
Mode 2: Omni-
On, Mono
(Yes/No)
Mode 3: Omni-
Off, Poly
(Yes/No)
Mode 4: Omni-
Off, Mono
(Yes/No)
Date:
01.16.2017
Recognize/I mport
1-16
0-63
N
N
Remarks
Tx range?
RE-303 User Guide 19
MIDI implementation chart
Multi Mode
(Yes/No)
Note-On Velocity (Yes/No)
Note-Off Velocity (Yes/No)
Channel Aftertouch (Yes/No)
Poly (Key) Aftertouch (Yes/No)
Pitch Bend (Yes/No)
Active Sensing (Yes/No)
Y
System Reset (Yes/No)
Tune Request (Yes/No)
Universal System
Exclusive:
Sample Dump
Standard
(Yes/No)
Device Inquiry
(Yes/No)
File Dump
(Yes/No)
MIDI Tuning
(Yes/No)
Master Volume
(Yes/No)
Master Balance
(Yes/No)
Notation
Information
(Yes/No)
Turn GM1
System On
(Yes/No)
Turn GM2
System On
(Yes/No)
Turn GM System
Off (Yes/No)
Y
DLS-1 (Yes/No)
File Reference
(Yes/No)
Controller
RE-303 User Guide 20
Y
Y
Only used for accent.
MIDI implementation chart
Destination
(Yes/No)
Key-based
Instrument Ctrl
(Yes/No)
Master
Fine/Coarse
Tune (Yes/No)
Other Universal
System
Exclusive
Manufacturer or Non-Commercial
System Exclusive
NRPNs (Yes/No)
RPN 00 (Pitch Bend Sensitivity)
(Yes/No)
RPN 01 (Channel Fine Tune)
(Yes/No)
RPN 02 (Channel Coarse Tune)
(Yes/No)
RPN 03 (Tuning Program Select)
(Yes/No)
RPN 04 (Tuning Bank Select)
(Yes/No)
RPN 05 (Modulation Depth Range)
(Yes/No)
2. MIDI Timing and Synchronization
MIDI Clock (Yes/No) Y
Song Position Pointer (Yes/No)
Song Select (Yes/No)
Y
Y
N
Start (Yes/No)
Continue (Yes/No)
Stop (Yes/No)
MIDI Time Code (Yes/No)
MIDI Machine Control (Yes/No)
Y
Y
Y
MIDI Show Control (Yes/No)
If yes, MSC Level supporte
3. Extensions Compatibility
RE-303 User Guide 21
Y
N
Y
Y
Y
Y
Y
MIDI implementation chart
General MIDI compatible?
(Level(s)/No)
Is GM default power-up mode?
(Level/No)
DLS compatible? (Levels(s)/No)
(DLS File Type(s)/No)
Standard MIDI Files (Type(s)/No)
XMF Files (Type(s)/No)
SP-MIDI compatible? (Yes/No)
RE-303 User Guide 22
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