13 Noisebox

Noisebox selects among 13 noise algorithms with Main, with X/Y shaping the active algorithm. Main can be offset by AudioIn1, output level is VCA-controlled by AudioIn2, and switch down randomizes control offsets (hold to reset). PulseIn1 clocks sample-and-hold behavior; switch up or PulseIn2 enables sample-rate/bit reduction.

README

13 Noisebox

noisecard

My first card! A port of 13 Befaco Noise Plethora algorithms (some of which are not 1:1, which might just be part of the charm, so don't expect them to sound exactly the same, it's noise!)

Main Knob: Controls which algorithm you are currently selecting.

X & Y Controls various parameters of the algorithm for sound shaping. X usually maps more closely to pitch but it varies.

Z: Up toggles on a bitcrushing effect for crunchier noise. Middle is default, no effects.

The momentary toggle down randomizes all your controls - it lets you quickly get a new noise sound when you tap it and your controls now will all be offset.

Hold the momentary switch for over 2.5 seconds to reset this.

INS:

CV In 1: Offset CV for the algorithm being selected.

CV In 2: VCA - you can gate your noise with this. Also great for AM modulation of the noise. With nothing plugged in, this normalizes to always being on.

CV In 3: Offset CV for X Knob

CV In 4: Offset CV for Y Knob

Pulse (CV In 5): Sample and Hold trigger (to be detailed further below)

Pulse (CV In 6): Gate to turn on and off the bitcrushing effect. Effect is on when input is high.

OUTS:

CV Out 1/CV Out 2: Output of the noise algorithm and its current parameters. Both outs have the same source. I may consider making CV Out 2 go through a rainbow of noise instead.

CV Out 3: Output of the currently sample and held value, as determined by Pulse/CV In 5 - captures the current noise sample and holds until it receives another trigger.

CV Out 4: Slewed output of the above. Slew time is determined by the time between pulses in CV In 5

Pulse/CV Out 5: A binary gate toggled on or off if the sample and held value is greater than 0. Good for random gate patterns. Again this requires a clock or some signal into Pulse/CV In 5

Pulse/CV Out 6: Realtime comparator signal from whether or not the noise sample is above 0. Really glitchy PWM sound.

Verify your download

Confirm the file you downloaded really is that new firmware.

macOS / Linux (Terminal)

shasum -a 256 firmware.uf2

Linux also has sha256sum firmware.uf2.

Windows (PowerShell)

Get-FileHash firmware.uf2 -Algorithm SHA256

Compare the result to the SHA256 on the website — it should match exactly.

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