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Pédale Vite
De ton frigo
Tu dis « zut » à tes parents
Et tu pécho ton vélo
Pédale vite
Pédale vite
Now in version 2!
About
Pédale Vite is a multi-FX pedalboard for guitar or bass. This page contains the drawings and schematics to build the complete pedalboard. They are available in the Resource section below.
“Quick tour” video introduction for Pédale Vite v1, 19 min, 122 MB, French with English subtitles.
Requirements
These are the initial requirements on which I based my design:
- Multi-FX with at least the usual bunch of effects: distortion, chorus, flanger, delay, reverb…
- Programs containing any free combination of the above effects
- About a dozen of footswitch to activate the programs
- Fast and smooth transition between programs
- Expression pedal to drive effects like wha, volume…
- Strong enough for stage and regular transport
- Silent tuner activated with a footswitch
- External computer not required to use it
- Upgradable, allows to add your own effects
- Power supply with power switch
- Easy and simple building, can be reproduced and adapted by any person without specific skill
No cost goal currently. I’ll try not to make explode the budget without compromising quality as possible.
Just to give an idea, regarding actual and potential features, I think we’re in the Pod HD X field.
Main changes for the version 2:
- DIY audio board (could be used independently with I2S and I2C)
- Fully balanced stereo inputs
- XLR and jack combo connectors
- Optional microphone preamplifier (INA103) for the XLR input
- Selectable +20 dB and +40 dB gain on the mic preamp
- Adjustable pre-ADC gain between 0 and +40 dB
- Impendance, line/instrument path: > 2 MΩ
- Impendance, mic preamp: 2.2 kΩ
- Noise floor: −110 dBFS RMS (unweighted) at 0 dB gain
- Channel crosstalk: −78 dB (unweighted)
- Fully balanced stereo outputs
- Cirrus Logic CS4272 codec
- Custom drivers offering decent audio latency, roundtrip at 44.1 kHz:
0.83 ms (4-sample buffers),
1.40 ms (16-sample buffers),
3.56 ms (64-sample buffers)
- Fully balanced stereo inputs
- Much thiner enclosure
- Larger display, higher resolution
- More powerful internal processor (RPi4/RPi5)
Resource
All required documents and the source code are located on a GitLab repository. For convenience, building instructions and user manual are also browsable from here:
This is not a still project, I keep on updating it on a daily basis. If you’re interested, don’t hesitate to check this page regularly.
If anyone is interested by building their own Pédale Vite, please drop me a message. Hopefully we could be able to group component orders and possibly realize PCBs instead of protoboards if there is a demand.
Pictures
Version 2
Version 1
Audio samples
Without any specific order nor comment at the moment:
Recorded on 2019-11-06 with:
- L channel: Marshall 8080 Valvestate 80V
- R channel: Fender Hotrod Deluxe
- Microphone: Sennheiser e906
- Preamp & ADC: Yamaha 01V96i
No additional processing, except cut and fades. For example in real music tracks, check Sound of the Void (guitar) or Cass&Tord (bass).
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