Echo Bridge is a reverb, tremolo, and delay pedal. The original goal of this pedal was to emulate the sound of the bridge by Tandem, but I got carried away and now it's more of its own thing lol. It can still do Echo Bridge -- as well as many other spaces 🤝
I'll be updating this manual as I figure out better ways to render edit mode settings 🐒
Controls (Normal Mode)
| CONTROL | DESCRIPTION | NOTES |
|---|---|---|
| KNOB 1 | Reverb Dry/Wet Amount | |
| KNOB 2 | Tremolo Speed | |
| KNOB 3 | Tremolo Depth | |
| KNOB 4 | Delay Time | |
| KNOB 5 | Delay Feedback | |
| KNOB 6 | Delay Dry/Wet Amount | |
| SWITCH 1 | Reverb knob funcion | UP - 0% Dry, 0-100% Wet MIDDLE - Dry/Wet Mix DOWN - 100% Dry, 0-100% Wet |
| SWITCH 2 | Tremolo Waveform | UP - Square MIDDLE - Triangle DOWN - Sine |
| SWITCH 3 | Trem & Delay Makeup Gain | UP - Plus MIDDLE - Normal DOWN - None |
| FOOTSWITCH 1 | Reverb On/Off | Normal press toggles reverb on/off. Double press toggles reverb edit mode (see below). Long press to reflash firmware, in case it's ever needed |
| FOOTSWITCH 2 | Delay/Tremolo On/Off | Normal press toggles delay. Double press toggles tremolo. LED: - 100% when only relay is active - 40% pulsing when only tremolo is active - 100% pulsing when both are active |
Controls (Reverb Edit Mode)
Both LEDs flash when in edit mode.
| CONTROL | DESCRIPTION | NOTES |
|---|---|---|
| KNOB 1 | Reverb Amount (Wet) | Not saved. Just here for convenience. |
| KNOB 2 | Pre Delay | 0 for Off, up to 0.25 |
| KNOB 3 | Decay | |
| KNOB 4 | Tank Diffusion | |
| KNOB 5 | Input High Cutoff Frequency | |
| KNOB 6 | Tank High Cutoff Frequency | |
| SWITCH 1 | Tank Mod Speed | UP - High MIDDLE - Medium DOWN - Low |
| SWITCH 2 | Tank Mod Depth | UP - High MIDDLE - Medium DOWN - Low |
| SWITCH 3 | Tank Mod Shape | UP - High MIDDLE - Medium DOWN - Low |
| FOOTSWITCH 1 | Save & Exit | Saves all parameters and exits Reverb Edit Mode. Long press to reflash firmware |
| FOOTSWITCH 2 | Save & Exit | Saves all parameters and exits Reverb Edit Mode. |
Reset (Restore default reverb parameters)
To enter reset mode, press and hold Footswitch #2 when powering the pedal. The LED lights will alternate, blinking slowly.
- Rotate Knob #1 to 100% -- the LEDs will quickly flash simultaneously and start blinking faster.
- Rotate Knob #1 to 0% -- the LEDs will quickly flash simultaneously and start blinking faster.
- Rotate Knob #1 to 100% -- the LEDs will quickly flash simultaneously and start blinking faster.
- Rotate Knob #1 to 0% -- the LEDs will quickly flash simultaneously, defaults will be restored, and the pedal will resume normal pedal mode.
To exit reset mode without resetting, power off the pedal and power it back on.
Patches
Still figuring out how best to render the delay/trem footswitch light, so for right now its off for all of them! haha sorry, use your imagination! And if you find a setting that you like, let me know and i'll add it here!
Echo Bridge
The classic Echo Bridge sound - warm reverb with extra subtle tremolo and a touch of delay to create THAT ambience.
Settings:
- Reverb: 35% for warm, present reverb
- Tremolo: Slow sine wave (45% speed, 25% depth) for gentle movement
- Delay: Medium time (60%) with moderate feedback (40%) and subtle mix (30%)
- Switches: Dry/wet mix, sine wave, normal gain
Plate-y Reverb
Classic plate reverb - perfect for pretty much any vintage tone.
Settings:
- Reverb: 70% wet signal for that classic dripping spring sound
- Tremolo & Delay: Off - pure reverb tone
- Switches: 100% wet mode for maximum spring character
Tremolo Delay
Rhythmic tremolo paired with a synced delay for asynchronous, pulsing textures.
Settings:
- Reverb: Minimal (15%) to keep things tight
- Tremolo: Fast square wave (70% speed, 60% depth) for choppy rhythm
- Delay: Medium time with moderate feedback, balanced mix
- Switches: Dry/wet mix, square wave, plus gain to compensate for tremolo
Ambient Wash
Lush, atmospheric reverb with slow tremolo and long delay for ambient soundscapes.
Settings:
- Reverb: High (80%) for maximum space
- Tremolo: Very slow triangle wave for gentle movement
- Delay: Long time (85%) with high feedback (70%) for cascading echoes
- Switches: Wet-only reverb, triangle wave, no makeup gain
Slapback Echo
Quick, punchy slapback delay with minimal reverb - perfect for indie and country.
Settings:
- Reverb: Subtle (20%) room sound
- Tremolo: Off for clean attack
- Delay: Short time (25%) with minimal feedback (15%) and present mix (60%)
- Switches: All middle positions for balanced tone
Acknowledgements
- The hardware is a Hothouse by Cleveland Music Co, which provided a base for development.
- The algo and pedal is based on the Daisy Seed, which means that if you really wanted, you could reflash a bunch of other effects onto this pedal! It's super fun and addicting
- The software is a fork of Flick, with the Datorro reverb algo modified to be closer to the original Echo Bridge frequency curve. The controls work the same as the original, so feel free to try out the original effect to hear the difference!
- This software is licensed under the GNU General Public License (GPL) for open-source use. This means that this effect is never going to be put up for sale -- just hit me up and i'll make you one if you can get me the Hothouse parts + Daisy.
- The code for this website is also open source! Check out the repo on Github.