Description

In these devices, Sampling error (serror) 🎚️ and Quantization error (qerror) 🔢 are used to produce or process sounds.

🎶 serror and serrorFX

Sampling a sound at a low sample rate ⏬ creates aliases (replicas of the original sound’s spectrum) at intervals defined by the sample rate, leading to distortion ⚡.

In classic redux/resampling effects, the pitch 🎵 of the timbre often changes inconsistently with the original.

👉 Serror devices calculate the input pitch and tune the resampling effect to create harmonic aliases ✨ and reduce non-harmonic distortions ❌.

🎹 serror instrument

Starting sound = a sine wave 🌊 → resampled to a sample rate multiple of the input pitch 🎶 → adds harmonics ✨ → richer sound.

Parameters:

📈 ADSR graph – sets the dynamic envelope

🎚️ detune – deviation from perfect pitch multiple

📊 detune % – depth of ADSR on detune

➗ ratio – multiplication factor of the new sample rate

🎚️ LPF frequency – low-pass filter cutoff

📊 LPF % – depth of ADSR on LPF cutoff

🎧 wide – stereo width

🌀 glide – time between following notes

🎛️ serrorFX effect

Like the instrument, but applied to any input sound 🎤. Pitch can be:

🎵 auto (pitch tracking)

🎲 random (different on each onset)

📌 fixed

Parameters:

🎚️ detune / detune %

➗ ratio + ratio mode (count, random, fixed)

🎚️ LPF frequency / LPF %

🌀 glide

🎼 mode (auto, random, fixed)

Onset notes 🎹 trigger impacts on filter + detune (if % > 0).

🌊 smooth – softens attack

🕰️ decay – extends tail

🔢 qerror

Quantization error = difference between original analog signal 🎤 and digital representation 💻 after quantization.

This creates noise/distortion ⚡, especially in low-bit-depth systems.

👉 qerror devices link pitch ↔ quantization error to shape timbres:

🎶 Low notes = coarse, buzzy error

🎵 High notes = finer, hiss-like error

🎹 Attacks/decays = bursts then thinning

🎹 qerror instrument

Sine wave 🌊 → copy reduced in bit depth 🪓 → subtracted from original ➖ → leaves only the quantization error ⚡ = synthesis output.

Parameters:

🔢 steps – number of divisions

📊 steps % – ADSR depth on steps

🔄 mode – 1 (round), 2 (round + normalize), 3 (truncate)

⏬ resampling + resampling %

🎚️ LPF frequency / %

🎧 wide

🌀 glide

🎛️ qerrorFX

Same principle, but applied to input sounds 🎤.

Parameters:

🔢 steps + steps %

🔄 mode (1,2,3)

⏬ resampling + %

🎚️ LPF frequency / %

Onset notes 🎶 trigger steps, resampling, and filter.

🌊 smooth → softer attack

🕰️ decay → longer tail