Choose gate vs soft-expander behaviour via ratio¶
The Ratio knob controls how aggressively the gate attenuates audio below the threshold. Setting a low ratio produces a soft downward expander that gently reduces quiet audio; setting a high ratio produces a hard gate that cuts it sharply. Choosing the right ratio lets you match the gate's character to your noise situation and operating style.
Before you start¶
- The gate stage must be enabled on the side you want to adjust (TX or RX). If the applet is not visible, enable the gate via the CHAIN widget or double-click the GATE stage to open the floating editor.
- Open the Aetherial TX Gate sub-container (TX) or the Aetherial AGC-T sub-container (RX) inside the Aetherial Audio (TXDSP) parent container in the Applet Panel.
- When a gate stage is bypassed, the entire applet tile dims to approximately 55 % opacity. This visual cue matches the dim effect used on the EQ curve and confirms that the stage is not processing audio. Re-enable the stage to restore full opacity and active processing.
Steps¶
- Locate the Ratio knob in the five-knob row at the bottom of the applet.
- To set soft-expander behaviour, turn Ratio toward a low value (for example, 2.0:1). Audio below the threshold is reduced gradually.
- To set hard-gate behaviour, turn Ratio toward a high value (for example, 8.0:1 or higher). Audio below the threshold is cut sharply.
- Watch the gain-reduction bar while audio passes through. A soft-expander setting produces a shallower, more gradual amber fill; a hard-gate setting produces a deep, abrupt fill when the gate closes.
- If the hard-gate cut is too severe between words, adjust Floor to limit the maximum attenuation. See Set Floor to avoid unnatural silence between words.
What each control does¶
| Control | Default | Valid range |
|---|---|---|
| Ratio | 2.0 | 1.0 to 10.0 |
| Thresh | -40.0 dB | -80.0 to 0.0 dB |
| Return | 2.0 dB | 0.0 to 20.0 dB |
| Floor | -15.0 dB | -80.0 to 0.0 dB |
| Gain-reduction bar | — | 0 to 40 dB GR |
| Transfer curve | — | — |
| Flip (Expander / Gate) | Unchecked = downward-expander (gentle, ratio-based). Checked = Gate (hard cut). Snaps ratio and floor to preset pairs when toggled; other knobs stay put. Label updates live between 'Expander' and 'Gate'. | Editor-only control (floating ClientGateEditor). Colour: unchecked = green (Expander), checked = amber (Gate). Tooltip: 'Flip between downward Expander (gentle) and Gate (hard) modes. Snaps ratio + floor to preset pairs; other knobs stay where you left them.' |
| Peek (lookahead) | Sets a pre-read delay so the gate can open fractionally before a transient arrives, avoiding clipped attack edges. 'Off' disables the delay line entirely. | Editor-only control. Higher values increase latency on the TX path. 1 and 1.5 ms match Ableton's preset options; 3 and 5 ms added for very fast transients. |
| Attack | Exponential mapping (0.1 * 1000^n). Sets how quickly the gate opens after input rises above Thresh. | Editor-only control. Label 'X.XX ms' below 10 ms, 'X.X ms' above. |
| Hold | Linear mapping (n * 500). After the input drops below Thresh − Return the gate stays open for this long before it begins closing, preventing flutter on rhythmic material. | Editor-only control. Label 'X.X ms'. |
Tips¶
- A ratio of 2.0:1 (the default) is a conservative starting point suitable for most TX use. Raise it only if low-level noise is still audible when you are not speaking.
- At ratios above approximately 8.0:1 the gate behaves almost like an on/off switch. Pair this with a carefully set Thresh to avoid clipping the leading edge of words.
- Use the Return knob to eliminate gate chatter. If the gate flickers open and closed rapidly when you pause speaking, increase Return so the gate stays open until the input level drops well clear of the threshold. The cyan band on the transfer curve widens as you increase Return, showing the sticky zone directly.
- The transfer curve updates in real time as you move Ratio or Return. Use the live input ball to confirm the curve shape and hysteresis band match your intent before transmitting.
- Changes to any knob take effect immediately and are saved automatically. No Apply or Save button is required.
Troubleshooting¶
- Ratio knob has no effect on the sound — Confirm the gate stage is enabled. A bypassed gate passes audio unmodified regardless of knob settings; the applet tile will appear dimmed to approximately 55 % opacity when bypassed. See Bypass the gate from the chain.
- Hard-gate ratio cuts too deep and creates unnatural silences — Lower Floor toward 0 dB to reduce the maximum attenuation, or reduce Ratio toward the soft-expander range.
- Soft-expander ratio does not suppress noise enough — Raise Ratio or lower Thresh so attenuation begins at a higher input level.
- Gate chatters or flickers at the threshold — Increase Return so the gate stays open until the signal drops further below the threshold. Watch the cyan hysteresis band on the transfer curve widen as you do so.