cosmotronic/messor
Messor
Stereo compressor and transient shaper with VCA-based feed-forward design, switchable HP/LP sidechain filter, CV inputs for attack, release, filter cutoff and makeup gain, and Stereo VCA mode.830
Capabilities 3
- Stereo Compressorstereo-compressor
- VCA-based feed-forward stereo compressor with sidechain filter, envelope follower, CV inputs for attack, release, filter cutoff and makeup gain.830
- Stereo VCAstereo-vca
- Set Make Up Gain knob to MUTE and patch an envelope to the GAIN CV input to use Messor as a stereo VCA.830
- Transient Shapertransient-shaper
- Ratio can exceed limiting into over-compression to completely reshape transients.830
Jacks 10 (7 in / 3 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (7) | |||
| ATTACK CV IN | cv | 0V to 5V | CV input for attack time modulation. Useful range 0–5V; Attack knob acts as offset.830 |
| EXTERNAL SC IN | audio | — | External sidechain input. Normalised to a mono mix of the left and right channels. Patching breaks the internal sidechain connection allowing external signals (e.g. a kick drum) to drive the gain reduction.830 |
| GAIN CV IN | cv | 0V to 5V | Modulates the output/makeup gain level. The Make Up Gain knob acts as an offset. Set knob to MUTE and patch an envelope here to use Messor as a stereo VCA.830 |
| LEFT IN | audio | — | Left channel audio input. Normalised to the Right input when nothing is patched into it.830 |
| RELEASE CV IN | cv | 0V to 5V | CV input for release time modulation. Useful range 0–5V; Release knob acts as offset. Negative CV can push the release time below 5ms.830 |
| RIGHT IN | audio | — | Right channel audio input.830 |
| SC FILTER CUTOFF CV IN | cv | — | CV input to modulate the sidechain filter cutoff frequency.830 |
| Outputs (3) | |||
| LEFT OUT | audio | — | 830 |
| RIGHT OUT | audio | — | 830 |
| SC ENVELOPE OUTPUT | cv | — | Outputs the sidechain gain reduction envelope. Available independent of Ratio and Bypass switch settings.830 |
Parameters 9
| Name | Type | Range | Behavior |
|---|---|---|---|
| Attack | knob | — | Sets the time the compressor takes to start reducing output volume, controlling how much of the initial transient is preserved. Longer settings average overall dynamics and affect high frequency handling. Longer attack times also extend the release.830 |
| Bypass Switch | switch | — | 830 |
| Lowpass/Highpass Select | switch | — | 830 |
| Make Up Gain | knob | — | Applies gain to the signal after compression to match output to input level. With knob set to MUTE and an envelope patched to the GAIN CV input, Messor operates as a stereo VCA. The knob acts as an offset when CV is applied. Nominal CV values are 0-5v.830 |
| Ratio | knob | — | 830 |
| Release | knob | 5ms – 3500ms | Sets the time for the compressor to stop reducing gain after the input signal drops below the threshold. Longer times create an averaging effect. Very short release times can cause distortion in low frequencies. Negative CV can push the release time below 5ms.830 |
| Side-chain Filter Cutoff | knob | — | Sets the cutoff frequency of the 6dB switchable LP/HP filter in the sidechain path. Certain frequencies can trigger gain reduction while others leave the signal unchanged. Can be set to cut off all frequencies, resulting in no compression.830 |
| Threshold | knob | — | Sets the signal level where compression begins. Signals below threshold are unaffected; signals above generate the sidechain. Gain reduction envelope is visualised by orange LEDs under the knob. Setting threshold lower creates more gain reduction. Expects modular levels (-10 to 17dBv).830 |
| Warm Saturation Switch | switch | — | Selects between Pure and Warm modes. In Warm mode, an analog tube saturation emulator increasingly soft-clips the signal as headroom limits approach, while leaving lower-level signals intact. Adds compression and warmth. A small side effect is a slightly lower output volume. Pure mode disables this effect.830 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [830]
- [831]