Tag: wavetable

ESP32 and PWM – Part 3

I'm continuing my look into the ESP32 and PWM. This time I'm adding in some analog control to introduce an element of frequency modulation to the synthesis. Part 1 - All the theory and research around PWM and the ESP32. Part 2 - Generating different waveforms on multiple channels. Part 3 - Introducing analog control and frequency … Continue reading ESP32 and PWM – Part 3 →

ML Synth Tools XIAO SAMD Synth

Having listed out a few Arduino Audio and MIDI Frameworks and having spent some time recently with the XIAO SAMD21, I thought I'd take a closer look at the ML Synth Tools XIAO synth. Important Update: It would appear that the ML_SynthTools and samd21_mini_synth repositories have been fairly significantly updated since I wrote this. I've tried … Continue reading ML Synth Tools XIAO SAMD Synth →

Auduino Slider Waveform Granular Synthesis

Now I have a version of the Auduino that will use a wavetable as the grain for the granular synthesis, I can start some alternative experiments, so first of all I thought I would try to use my slider potentiometers to build the wavetable. https://youtu.be/HABkDbIHvO8 Warning! I strongly recommend using old or second hand equipment … Continue reading Auduino Slider Waveform Granular Synthesis →

Auduino Wavetable Granular Synthesis

The original Auduino used a clever trick to efficiently calculate a triangle wave to use as the "grain" for the granular synthesis, but I always wanted to try it with a wavetable to see if that would work.  This project gives that a go. https://youtu.be/qA2BzSjeX1U Warning! I strongly recommend using old or second hand equipment … Continue reading Auduino Wavetable Granular Synthesis →

Arduino MIDI Slider OLED R2R Waveform Generator

This project moves on a step from my Arduino MIDI Slider R2R Waveform Generator and adds a small 0.96" OLED I2C display. https://youtu.be/MGwdu017e00 Warning! I strongly recommend using old or second hand equipment for your experiments.  I am not responsible for any damage to expensive instruments! These are the key projects for the main concepts used … Continue reading Arduino MIDI Slider OLED R2R Waveform Generator →

Arduino MIDI Slider R2R Waveform Generator

When I first started looking at using fader/slider potentiometers I always anticipated using it to generate waveforms for my Arduino MIDI R2R Digital Audio board.  But as that is currently part of the Lo-Fi Orchestra, I decided I'd build a new one, hence the diversion into using PWM first whilst I decided exactly what to do. … Continue reading Arduino MIDI Slider R2R Waveform Generator →

Arduino MIDI Slider PWM Waveform Generator

This is a short update, to demonstrate the MIDI version of my Arduino Slider PWM Waveform Generator. A future project shows a similar system using an R2R ladder. https://youtu.be/chMNcMcGbXY Warning! I strongly recommend using old or second hand equipment for your experiments.  I am not responsible for any damage to expensive instruments! These are the key … Continue reading Arduino MIDI Slider PWM Waveform Generator →

Arduino Slider PWM Waveform Generator

Having finally been through the details of PWM audio output, I can now link this up with my 16 slider potentiometers and start creating more complex waveforms by actually "drawing" out the wave with the pots. https://youtu.be/PbkMxU_cBL0 Warning! I strongly recommend using old or second hand equipment for your experiments.  I am not responsible for … Continue reading Arduino Slider PWM Waveform Generator →

Arduino R2R Digital Audio – Part 3

So this is where we start to get closer to some proper direct digital synthesis using the hardware developed in part 1 and moving on from the timer-driven code developed in part 2. In Arduino MIDI R2R Digital Audio I add MIDI. In Arduino PWM Sound Output I talk more about the theory of PWM. https://youtu.be/1MPNHMQ-2vs The … Continue reading Arduino R2R Digital Audio – Part 3 →