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  1. Home
  2. Audio Processing
  3. Noise Gate & Audio Cleaner
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Generate beautiful waveform visualizations from audio files. Choose from bars, mirror, line, or circular styles. Customize colors and export as PNG.

Silence Detector & Remover

Automatically detect and mark silent sections in audio files. Visual waveform with highlighted silence regions. Remove all silences at once or export individual segments.

Silence the noise between the words

A noise gate monitors audio level in real time and mutes the signal whenever it falls below a threshold you set. This eliminates low-level background noise — fan hum, room tone, keyboard clicks — during pauses in speech or between musical phrases. Set the threshold, attack, hold, and release times, and the gate opens only when the signal is loud enough to matter.

Step by Step

  1. 1Upload or record audio containing background noise
  2. 2Set the threshold just above the noise floor
  3. 3Adjust attack, hold, and release to taste
  4. 4Preview gated audio in real time
  5. 5Export the cleaned file

Feature Highlights

  • Adjustable threshold, attack, hold, and release controls
  • Range control for partial or full attenuation
  • Real-time level meter showing gate state
  • Waveform before-and-after display
  • Sidechain filter option to gate based on a specific frequency range
  • Supports all major audio formats

Technical Details

The gate compares the incoming signal level to your threshold. When the level rises above it, the gate opens with the attack time you specify, letting audio through. It stays open for the hold duration after the signal drops, then closes over the release period. Short attack times catch quick transients; longer release times let natural reverb tails fade out instead of cutting abruptly. The range control determines how much attenuation the gate applies when closed — full muting or just a gentle reduction.

Popular Scenarios

  • Podcast cleanup

    Mute background noise during pauses so only the speaker is heard.

  • Drum recording tightening

    Gate individual drum microphones to reduce bleed from other kit pieces.

  • Live stream audio

    Keep your microphone silent when you are not speaking to avoid transmitting room noise.

  • Voiceover post-processing

    Remove air conditioning hum and ambient sounds between lines of narration.

Frequently Asked Questions

How do I find the right threshold?

Play back a silent section and watch the level meter. Set the threshold just above that reading so the gate closes during silence but opens when you speak.

Will a noise gate remove noise during speech?

No. A gate only acts when the signal is below the threshold. For noise that is present while you are speaking, use a noise reduction or spectral subtraction tool instead.

What are good starting values for attack and release?

For speech, try 1-5 ms attack and 50-100 ms release. For music, longer release times (100-300 ms) tend to sound more natural.

Privacy First

All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.