Mercury is an amp sim using Neural Amp Modeler (NAM). It includes 9 custom size neural models and a 4 band EQ (Bass, Mid, Treble, Presence). It is intended to be used with a separate IR/CabSim, or an actual amp (no cab modelling on Mercury).
Neural Network inference for the amp/pedal models uses RTNeural with RTNeural-NAM.
Note: Due to the processing power required for the neural models, Mercury is a mono effect, which on the Funbox pedal is copied left to right channel for output. If a stereo signal is going into the input, Mercury will only take the left channel for processing.
*Models included: Low Gain:
- Matchless SC30
- Twin Reverb
- Dumble Low Gain (from kit build)
Medium Gain:
- Dumble Higher Gain (from kit build)
- Ethos Tube Pedal
- JCM800 Medium Gain
High Gain:
- Mesa iib
- Splawn
- PRS Archon
| Control | Description | Comment |
|---|---|---|
| Ctrl 1 | Gain | Increases the input gain to the neural model up to 2.5x |
| Ctrl 2 | Level | Overall volume |
| Ctrl 3 | Presence | +10/-10 dB Presence control, center is 0. |
| Ctrl 4 | Bass | +10/-10 dB Bass control, center is 0. |
| Ctrl 5 | Mid | +10/-10 dB Mid control, center is 0. |
| Ctrl 6 | Treble | +10/-10 dB Treble control, center is 0. |
| 3-Way Switch 1 | Amp/Model Group | 3 available groups, default: left: LowGain, center: MedGain, right: HighGain |
| 3-Way Switch 2 | NAM Model Select | 3 available NAM models for each group* |
| 3-Way Switch 3 | Unused | |
| Dip Switch 1 | ||
| Dip Switch 2 | ||
| FS 1 | Bypass | |
| FS 2 | Preset | |
| LED 1 | Bypass Indicator | |
| LED 2 | Preset Indicator | |
| Audio In 1 | Mono In (Left Channel) | Right channel ignored if using TRS |
| Audio Out 1 | Mono Out | Left channel copied to Right Channel if using TRS |
| Control | MIDI CC | Value |
|---|---|---|
| Knob 1 | 14 | 0- 127 |
| Knob 2 | 15 | 0- 127 |
| Knob 3 | 16 | 0- 127 |
| Knob 4 | 17 | 0- 127 |
| Knob 5 | 18 | 0- 127 |
| Knob 6 | 19 | 0- 127 |
Mercury runs in SRAM memory on the Daisy Seed. You must use the Bootloader to load the executable.
Mercury is intended to be used as a submodule in Funbox, and build paths expect to be used as such. The Mercury code was split out from the Funbox project to preserve the License used in reused/modified code from other projects. To build Mercury, it is recommended to clone the Funbox project and run "git submodule update --init --recursive" to get Mercury and all required dependencies. Otherwise, you can download the .bin executable to upload to the Daisy Seed from the Releases page.