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Sdkc Instruments Helical

¥53,900 (Tax excluded ¥49,000)
Unique 16-poly wavetable synthesizer with autoregressive sequencing

Format: Eurorack
Width: 16HP
Depth: 40mm
Current: 240mA @ + 12V, 12mA @ -12V

For the latest information on this moduleGithub pagePlease refer to
manual

 

MUSICAL FEATURES

Helical is a 16-tone polyphonic synthesizer composed of Autoregressive Algorithmic Synthesizer.
Autoregressive synthesis continues to create endless new phrases and sounds.
Each oscillator has a sequencer, Wavetabble oscillator, envelope generator and VCA, which are independent for each oscillator.By writing to the SD card on the front of the panel, the user can change the scale and LED color with a dedicated editor, and the Wavetable can also be changed freely.

HOW TO USE

Autoregressive synthesis is an original method that has algorithms that refer to past states to determine the next parameter. In Helical, the past pitch (pitch) of each oscillator determines the duration (note value) of the next note, and the past note value influences the next note pitch.By being helically influenced from the past, it produces a natural sound that is different from completely random.

autoregressive synthesis

When pitch and duration are calculated

At the end of the envelope, calculate a new pitch and duration.

Sample autoregressive synthesis

The autoregressive progression produces the envelope and pitch flow shown above.

Helical is designed with the purpose of exploring new rhythms that are not the concept of existing musical rhythms (determining note value from BPM).

Specifying the number of voices as one of the key controls in patchingPolyThere are controls.At minimum, it will be muted at voice 0, so by inputting CV or gate here while it is at minimum, it will be sounded at that timing, allowing a variety of gating.

Interface

 

The explanation of each part is displayed by mouse over
Diagram

Editing Wavetables

of Synthesis TechnologyWave Editcan be used to create your own wavetable presets.
Rename the exported wav file to buf_wt.wav and write it to the SD card.

Editing Wavetables

As above, each of the 8 tables is treated as one preset on Helical.

For information on how to use Wave Edit,Synthesis TechnologyPlease refer to the page.

If you use other software, create a wav file with a table size of 256 samples, 64 types, and a total of 16384 samples, rename it to buf_wt.wav, and write it to the SD card. 48kHz/24bit is recommended.
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