Bypass
Center switch position. Audio passes through unchanged. Use it as the reference for every adjustment.
User guide
Start simple. Let the band tell you what it needs.
QRNix has one mode switch, four controls, and one button. The operating sequence below keeps the first session predictable.
First session
Work from Bypass outward.
- Connect a line-level or controlled headphone source. Start with the radio source level low. The connection guide covers the current input limits.
- Select Bypass. Confirm that you hear normal radio audio before adding processing.
- Set the input level once. Reduce the radio source level if the display signals CLIP. Keep that level fixed before capturing a Spectral profile.
- Select a noise-reduction mode. Use Spectral for stable noise or Adaptive for changing conditions.
- Start with low Aggression. Raise it until static falls, but back off if speech becomes metallic or thin.
- Set Reduction, then add Smoothing and Whitening only when useful. Reduction changes residual depth. The other two controls refine the character of what remains.
Mode switch
Use the mode that matches the noise.
Spectral
Capture one second of representative noise with no wanted voice. Best for stable noise and weak signals. Recapture after retuning or a real noise change.
Adaptive
QRNix updates its noise estimate continuously. Best while tuning or when conditions change faster than a manual capture can keep up. Enter during quiet audio when possible.
Four controls
Know what each adjustment trades.
| Reduction | 0 to 30 dB. Sets how much residual noise is mixed back. It does not decide what is voice or noise. |
|---|---|
| Smoothing | 0 to 100%. Steadies the reference spectrum over time. Higher values can smear fast speech. |
| Whitening | 0 to 100%. Redistributes tonal residue to make it less distracting. Its effect is subtle when Reduction is already high. |
| Aggression | 0.00 to 2.00. Controls oversubtraction. Higher settings remove more noise but can create metallic or musical artifacts. |