DOI: 10.5281/zenodo.15389653
title: Parametric Overdrive pedal dataset (pOD-set)

description: Related Publication: Francesco Ardan Dal Rì, Domenico Stefani, Luca Turchet, Nicola Conci, "Morphdrive: Latent Conditioning For Cross-Circuit Effect Modeling And A Parametric Audio Dataset Of Analog Overdrive Pedals", in Proceedings of the 28-th Int. Conf. on Digital Audio Effects (DAFx25), 2025, Ancona, Italy.

Preprint: domenicostefani.com/publications/2025DAFx_Morphdrive_PREPRINT.pdf

BibTex:





@inproceedings{dalri2025morphdrive,    author = "Dal R{\`i}, Francesco A. and Stefani, Domenico and Turchet, Luca and Conci, Nicola",    title = "{Morphdrive: Latent Conditioning For Cross-Circuit Effect Modeling And A Parametric Audio Dataset Of Analog Overdrive Pedals}",    booktitle = "Proceedings of the 28-th Int. Conf. on Digital Audio Effects (DAFx25)",    location = "Ancona, Italy",    editor = "Gabrielli, L. and Cecchi, S.",    year = "2025",    month = "Sept",    publisher = "",    pages = "23--30",    issn = "2413-6689",}


Webpage: domenicostefani.com/morphdrive/

Code: github.com/domenicostefani/morphdrive

 

pOD-set is a dataset with 97 hours and 57 minutes of recordings covering 27 overdrive pedals, with 36 combinations of parameters for each.

Out of the wide range of different overdrive pedals currently available on the market, we selected a subset of high-end, boutique pedals - spanning from renowned classic circuits to novel, peculiar, and unconventional designs - which in our experience we believe may be representative of the broad spectrum of tonal nuances that characterizes modern guitar.

The different parameter settings represent combinations of the gain and tone knobs, typically found in most overdrive pedals.

For each knob, we recorded six positions, covering their full range in evenly spaced increments (i.e., 0, 2, 4, 6, 8, and 10 on 10-mark scales).

Precise parameter setting was achieved through a custom recording robot equipped with motors (see the related publication here).

 

Additional controls, where present, were set to flat/neutral positions.

Detailed settings are provided with the dataset.

The dataset was generated by processing a single input audio file through each parameter configuration of each analog pedal.

The main input was a ~6-minute WAV file (48 kHz, 24-bit) from Yeh et al. [1], containing a diverse range of instrumental sounds.

Moreover, we added three 4-second sinusoidal sweeps (15 Hz to 24 kHz) at different amplitudes (-6, -12, and -24 dBFS), separated by 400 ms of silence to capture the noise floor of each pedal.

On each pedal, the volume knob was used to match the output level among different pedals, first manually adjusted to -3dBFS peak at the loudest setting.

Since fine-level matching is not feasible due to the circuits nonlinear behavior across different parameters, we adopted per-class normalization of the recordings so that the loudest peak for each pedal was precisely -3 dBFS. Normalization was minimal, with an average amplification of 0.33 ± 0.87 dB.

All dataset samples were recorded using a MOTU M4 audio interface.

The input signal was routed through a Radial ProRMP passive re-amp box to match the pedals input impedance.

We measured and removed the total signal chain latency of 1268 samples from each file for accurate alignment with the input file.

Finally, since signal phase is per se tonally irrelevant, we inverted the polarity for phase-inverting circuits to maintain consistency across the dataset.

 

WAV naming convention:

Example: a_chime_g3_t5.wav

[a]_[chime]_g[3]_t[5].wav
 A     B      C    D     

A. Recording type:        "a": Main audio from [1], processed through the pedal.        "n": Noise floor recording.        "s0": Sine sweep (15 Hz to 24 kHz) at -6 dBFS        "s1": Sine sweep (15 Hz to 24 kHz) at -12 dBFS        "s2": Sine sweep (15 Hz to 24 kHz) at -24 dBFS

B. Pedal name. The mapping between this (also called "folder name") and the pedal Model, Brand, and 3-letter code name is provided in the file "0_dataset_metadata.csv"

C. Gain knob setting in the range [0-5]. 0 Means knob fully to the left, 5 fully to the right. On a 10-step marked knob, these represent the even values including zero and 10 (0, 2, 4, 6, 8, 10).

D. Tone knob setting in the range [0-5].

Pedal List:










Index
Shortname
Brand
Model
Folder name


1
KOT
AnalogMan
King of Tone
kingoftone


2
HON
Bearfoot
Honey Bee
honeybee


3
BEE
Beetronix
Overhive
overhive


4
WES
Bogner
Wessex MKII
wessex


5
BLU
Boss
Blues Driver
bluesdriver


6
GLA
Cornerstone
Gladio
gladio


7
SS2
Cornish
SS2
ss2


8
ELE
Dr Scientist
The Elements
theelements


9
PLU
EarthQuaker Devices
Plumes
plumes


10
OCD
Fulltone
OCD v1.3
ocd


11
ZEN
Hermida Audio
Zendrive
zendrive


12
PRE
Horizon Devices
Precision Drive
precisiondrive


13
TUB
Jam Pedals
Tube Dreamer
tubedreamer


14
KTR
Klon
KTR
ktr


15
ACQ
Lichtlaerm Audio
Acquaria
aquaria


16
FEL
Lunastone
Big Fella
bigfella


17
CHI
Pettyjohn
Chime
chime


18
LIG
Rawkworks
Light OD
lightod


19
ZOI
SviSound
Overzoid
overzoid


20
DUM
Tanabe
Dumkudo
dumkudo


21
RUM
Tone City
Big Rumble
bigrumble


22
JAN
Vemuram
Jan Ray
janray


23
SIL
Vox
Silk Drive
silkdrive


24
RED
Way Huge
Red Llama*
redllama


25
MOF
Wampler
Mofetta
mofetta


26
385
Walrus Audio
385 MKII
385


27
SOU
Xotic
Soul Driven
souldriven



* With tone control mod



 

[1] Y.-T. Yeh, W.-Y. Hsiao, and Y.-H. Yang, “Hyper recurrent neural network: Condition mechanisms for black-box audio effect modeling,” in Proc. 27th Int. Conf. on Digital Audio Effects (DAFx24), Sept. 2024, pp. 97–104  https://www.dafx.de/paper-archive/2024/papers/DAFx24_paper_16.pdf