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Bastl 1983 Manual

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1983

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Summary of Contents for Bastl 1983

  • Page 1 1983...
  • Page 2 Because several tuning systems might be used in music (equal temperament, just intonation, concert A = 432Hz, etc.), the 1983 o ers a µTune feature to adjust the pitch of every semitone as desired. This can have a huge...
  • Page 3 The quantizer scales can be either defined by playing MIDI Notes in legato or edited in the LEARN mode. All the 1983 settings can be stored as a PRESET, and 10 di erent presets can be stored and loaded from the memory.
  • Page 4 1983 Features ■ 4 channels of CV and GATE ■ LISTEN input per channel for automatic tuning ■ automatic tuning by a single press of a button (o set & scaling correction) ■ several tuning systems (equal temperament, just intonation, A = 440/432 Hz etc.) ■...

  • Page 5: Technical Details

    Technical details ■ 7 HP ■ PTC fuse and diode protected 10-pin power connector ■ 24mm deep ■ power consumption +12: < 60 mA, -12: <20 mA...

  • Page 6: Signal Flow

    The 1983 module translates MIDI data to analog signals. There are several ways in which this conversion can happen, and the 1983 can also modify the way Outputs behave based on the CV Inputs. Therefore, it is a good idea to take a look at the general signal flow first.
  • Page 7 Connect the output of a simple waveform (triangle, singe, pulse, saw) of an oscillator to the LISTEN Input. Then connect the 1983 CV OUT of the same Channel to the Volt per Octave input on that oscillator. Now the oscillator can be automatically tuned by hitting the TUNE button.
  • Page 8 It does not change the current note being played unless the note is higher pitch. If the frequency is quite high, the 1983 transposes it a few octaves down to do the measurement to ensure high precision of measurement.

  • Page 9: Octave Selection

    Ableton Live and often the readout was di erent on the individual tuners by a cent or two. Two cents might actually be an acceptable error for a tuner itself. The 1983 has two cent precision. The minimal, barely noticeable, di erence humans can hear is 5-6 cents for trained musicians and a lot more for untrained musicians (100 cents = semitone).
  • Page 10 µTune The µTune mode allows you to adjust all 12 semitones in an octave UP or DOWN by fine increments. Custom tunings can be edited and stored as presets. NOTE: This is especially useful for setting precise mathematical ratios between notes – just intonation or pythagorean tuning (equal temperament is “out of tune”...

  • Page 11: Menu Structure

    µTune Edit To enter the µTune EDIT mode, hold SET and press TUNE again (while in a µTune PRESET mode). Now you are adjusting the current preset. The display shows a selected semitone that can be fine-adjusted by pressing the UP/DOWN buttons.
  • Page 12 SET+DOWN=LAYOUT MODE layout symbol blinks layouts with "." activate MIDI .CLK .RST feature – UP/DOWN select LAYOUT – SET exits to HOME SCREEN LEARN in QUANTIZER MODE (display shows note) – LEDs indicated weather the note is used for quantizing –...
  • Page 13 SET+TUNE=µTUNE MODE displays µ+preset number – UP/DOWN selects PRESET – SET exits to HOME SCREEN ⬇ SET+TUNE =µTUNE EDIT displays note notes with DOT are C# D# F# G# A# – UP/DOWN changes tuning for particular note – incoming MIDI note selects which note is adjusted –...
  • Page 14 There are 4 CV Inputs (WINDOW – QA, UPDATE – QB, TRANSPOSE – QC and PORTAMENTO – QD) that turn the 1983 into something more than just a MIDI interface: a very creative tonal tool, sequencer or arpeggiator. In all...
  • Page 15 Update If the UPDATE Input is used (a cable is plugged into it), the 1983 does not update the OUTPUTS unless the rising edge of a trigger or clock is detected at the Input. This could be used with a clock to time-quantize the updating of the channels, or more creatively with triggers (and with the WINDOW jack) to create interesting melodic variations.
  • Page 16 Layouts and Learn Modes The 1983 has multiple Layouts for various musical applications and the Outputs are configured in di erent ways to translate MIDI information. Each Layout can have several “Learn Zones” which can have independent settings of MIDI Channel, Note or CC. This adjustment can be done in the Learn Mode, and that mode is slightly di erent for each Layout.
  • Page 17 “P” 4 Poly Voice This Layout is a four-voice polyphonic, which allocates voices based on the PRIORITY settings. In the HIGH and LOW priority, Channel A has the highest priority. In the ORDER mode, the voices are naturally allocated using the Robin Round algorithm.
  • Page 18 “3” 1 Mono Voice + 3 Poly Voice This Layout has one monophonic channel, and a three-voice polyphonic channel. This way you can play a bass line and chords on top of it. Each of these can have a di erent MIDI Channel specified. All GATE Outputs behave as expected.
  • Page 19 “2” 2 Mono Voices This Layout supports two monophonic voices with velocity. CV A – pitch and CV B – velocity are one voice and CV C – pitch and CV D – velocity are the second voice. GATE A and C are normal gates. GATE B and D are ON TRIG –...
  • Page 20 “4” 4 Mono Voices This Layout consists of four simple monophonic voices. All GATE Outputs behave as expected. LEARN MODE: There are four Learn Zones in which you specify a MIDI Channel to listen to. Send a MIDI Note on the desired channel to set the channel, or hold SET and press UP/DOWN to change the MIDI Channel.
  • Page 21 “T” 4 Gates with Velocity This Layout outputs four gates with the velocity of the specified MIDI Notes. CV Outputs are used as velocity outputs, and all GATE Outputs behave as expected. LEARN MODE: There are four Learn Zones to specify the desired MIDI Note and Channel for each Channel.
  • Page 22 “C” 8 CCs This Layout converts eight di erent MIDI CC numbers into voltages or gates. It outputs four continuous voltages representing CC value on the CV OUTputs (0-7V), and 4 GATE Outputs that can be assigned to other CC values but can only set gate HIGH or LOW based on if the value is higher than 63 (5V) or lower (0V).
  • Page 23 NOTE: Playing Legato means that it will record all the notes played until you release all the notes. Once you release all the notes, it will be ready to receive a new set of notes. The GATE Outputs will send a trigger each time a quantized note changes value.
  • Page 24 “A” Allocation/Priority When more notes than can be outputted are received by the 1983 (for example, two notes in the monophonic mode, five notes in the four-voice poly, etc.) some notes have to be given allocation priority. The default allocation settings is O, ordered note priority, but in some scenarios it might be useful to use high or low note priority.
  • Page 25 browsing through the options, the display will show which Transpose Mode will be used, while the GATE LEDs will indicate which Channels will be a ected. O: Octave – A, A+B, A+B+C, A+B+C+D 5: Fifth – A, A+B, A+B+C, A+B+C+D S: Semitone –...

  • Page 26: Firmware Update Procedure

    5. connect the MIDI OUT from your MIDI interface to the 1983 MIDI IN 6. start the 1983 in boot mode (hold the SET button on startup – displayed "b" indicates boot mode) 7. press upload in the upload app 8.
  • Page 27 These headers can be used to chain multiple 1983s in a modular system without the need of a MIDI Thru Box. On Header 3, there is a MIDI Thru signal from the Input which can be connected to Header 2 on another 1983 without a MIDI Cable plugged in.
  • Page 29 Hardware Test Mode Hold the TUNE button at startup to enter the HW TEST MODE. In this mode all I/O except MIDI can be tested. First, connect the following four patch cables: CV A OUT to WINDOW (QA) CV B OUT to UPDATE (QB) CV C OUT to TRANSPOSE (QC) CV D OUT to PORTAMENTO (QD) Then connect four more patch cables:...
  • Page 30 1983 detects it by checking the status of the DOT. The CV Inputs might need a recalibration to provide precise operation in the QUANTIZER or TRANSPOSE modes. To do this, press and hold the SET button for a few seconds until “OK”...