Reduce background noise from audio using noise gate and spectral attenuation techniques. Real-time parameter preview.
This tool uses Noise Gate (attenuates signal below threshold) and Spectral Attenuation (selectively reduces noise frequency bands using filter banks).
This tool is effective for steady-state background noise such as: fan noise, air conditioner hum, electrical buzz, microphone self-noise, ambient room noise. It's less effective for non-steady noises like sudden impacts or someone speaking in the background. Adjust the Threshold parameter to just suppress the background noise level.
Noise reduction can subtly affect audio quality. Excessive reduction (threshold set too high) may cause unnatural sound, 'hollowness', or loss of detail. Start with a low reduction level and gradually increase to find the sweet spot. This tool provides real-time preview so you can hear the effect instantly.
No. All noise reduction processing is done locally in your browser using the Web Audio API. Audio data never leaves your device.
A noise gate is an audio processor that automatically mutes the signal when it falls below a set threshold. It allows only signals above the threshold to pass through. By adjusting Attack, Release, and Hold parameters, you can control how the gate responds. 'Spectral Attenuation' mode selectively reduces noise in specific frequency ranges.
Choppy or intermittent audio means the noise gate threshold is set too high, causing some of the desired audio signal to be gated out along with the noise. Lower the threshold, or adjust Attack/Release times for smoother response. Preview mode with real-time adjustment is the best way to find optimal settings.