xiotechnologies / dub-siren

Dub Siren

A monophonic synthesiser comprised of an LFO, VCO, and Delay. The synthesiser is controlled by 9 potentiometers and 3 buttons. Configurations can be stored to 1 of 10 preset keys. Pressing a preset key will override the potentiometers and buttons with the stored configuration.

The processor used is PIC32MZ. This is a 32-bit device with a FPU, 512 KB of RAM, 2 MB of program space, running at 252 MHz. The processor is deliberately over-spec'd to simplify development and allow new ideas to be explored in the future. The DAC is a 24-bit 192 kHz stereo device configured for 96 kHz mono.

Synthesiser elements

LFO

• Waveforms: sine, triangle, sawtooth, square, stepped triangle, stepped sawtooth
• Shape: adjusts waveform shape
• Frequency: 0 Hz to 15 Hz
• Amplitude: -1 to +1
• Gate control: enable/disable (automatically opens gate after one cycle)

VCO

• Waveforms: sine, triangle, sawtooth, square, pulse, 1-bit noise
• Frequency: 0.5 Hz to 5 kHz

Delay

• Time: 0 s to 1.33 s
• Feedback: 0% to 100%
• Filter: 3rd-order low-pass with adjustable corner frequency, all-pass (filter disabled), 3rd-order high-pass with adjustable corner frequency

User instructions (etched on the back panel)

BOM

• PCBA
• Top plate
• Bottom plate
• Spacer (x4)
• Row 1, Size 1x1 Cherry MX Keycap (x10)
• 8mm hex stand-off (x4)
• M3 5mm screw (x4)
• M3 10mm screw (x4)
• 3M rubber feet (x4)

dub-siren's Issues

contact

Hi,

I have been trying to contact you guys, I know this is not the right avenue, but I can't find an email or phone number..

please email me back my email is on my github profile.

Thank you!