For those who understand these things, the code for the Shruti-1 has been published by Olivier here.
1 comment:
Anonymous
said...
Quote;
"Here are some specs:
I/O: - mono audio output and input (input is sent to filter/VCA). - MIDI in/out. - 3 CV inputs (0-5V) on pin header. - TX/RX/RST pins for onboard programming with an usb->serial chip.
Interface: - 12 LEDs (current page / modulation matrix visualization). - 2x16 LCD display. - 5 switches to navigate through 12 parameter pages. - 4 pots for patch editing (4 parameters per page). - 2 inc/dec switches.
2 digital oscillators: - Available for Osc1&Osc2: * band limited wavetables: pulse, square (with pulse-width modulation), triangle with waveshapping, sawtooth. - Available only for Osc1: * sawtooth with sweepable resonance (casio cz-like). * simplistic FM. * lo-fi vowel synthesis (think “speak and spell”). * cheap 8bit waveforms with plenty of aliasing. * cheap square/PWM with even more aliasing. * colored noise. * 32 waveforms sweepable wavetable. * “sweep” oscillator which scans through all the waveforms. - Noise & sub-oscillator.
Modulation and filtering: - CEM3379 filter. - 2 LFO (square, sawtooth, triangle, sample & hold), syncable to tempo & MIDI clock. - 2 ADSR envelopes. - 16-steps step sequencer. - 14 patchcords modulation matrix (16 modulation sources, 11 destinations). Modulation sources include MIDI controllers, pitch bend wheel and modulation, CV inputs, gater…
Performance: - Arpeggiator with 15 different patterns + each of them with direction and octave setting. - Support for (some) indian/arabic scales. - “Patch performance” page in which 4 user-selectable parameters can be assigned to the 4 editing pots.
Others: - MIDI implementation with patch load/save by SysEx, patch editing by NRP. - Patch memory: 16 patches."
1 comment:
Quote;
"Here are some specs:
I/O:
- mono audio output and input (input is sent to filter/VCA).
- MIDI in/out.
- 3 CV inputs (0-5V) on pin header.
- TX/RX/RST pins for onboard programming with an usb->serial chip.
Interface:
- 12 LEDs (current page / modulation matrix visualization).
- 2x16 LCD display.
- 5 switches to navigate through 12 parameter pages.
- 4 pots for patch editing (4 parameters per page).
- 2 inc/dec switches.
2 digital oscillators:
- Available for Osc1&Osc2:
* band limited wavetables: pulse, square (with pulse-width modulation), triangle with waveshapping, sawtooth.
- Available only for Osc1:
* sawtooth with sweepable resonance (casio cz-like).
* simplistic FM.
* lo-fi vowel synthesis (think “speak and spell”).
* cheap 8bit waveforms with plenty of aliasing.
* cheap square/PWM with even more aliasing.
* colored noise.
* 32 waveforms sweepable wavetable.
* “sweep” oscillator which scans through all the waveforms.
- Noise & sub-oscillator.
Modulation and filtering:
- CEM3379 filter.
- 2 LFO (square, sawtooth, triangle, sample & hold), syncable to tempo & MIDI clock.
- 2 ADSR envelopes.
- 16-steps step sequencer.
- 14 patchcords modulation matrix (16 modulation sources, 11 destinations). Modulation sources include MIDI controllers, pitch bend wheel and modulation, CV inputs, gater…
Performance:
- Arpeggiator with 15 different patterns + each of them with direction and octave setting.
- Support for (some) indian/arabic scales.
- “Patch performance” page in which 4 user-selectable parameters can be assigned to the 4 editing pots.
Others:
- MIDI implementation with patch load/save by SysEx, patch editing by NRP.
- Patch memory: 16 patches."
Wow!
http://www.electro-music.com/forum/viewtopic.php?p=279691#279691
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