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Convert text to speech using browser Web Speech API. Choose from multiple voices, adjust speed and pitch, and play audio directly.
Generate beautiful waveform visualizations from audio files. Choose from bars, mirror, line, or circular styles. Customize colors and export as PNG.
Automatically detect and mark silent sections in audio files. Visual waveform with highlighted silence regions. Remove all silences at once or export individual segments.
Clean up your audio recordings with a professional Noise Gate that removes background noise, hums, and unwanted silence while preserving the clarity of your voice or music. Unlike noise reduction tools that attempt to remove noise from everywhere in your audio, a noise gate works by silencing sections where only noise is present, making it ideal for between-speech silence in podcasts or between drum hits. The tool provides precise control through adjustable threshold, attack, release, and range parameters, allowing you to fine-tune how aggressively unwanted silence is removed. Built-in presets for Voice, Music, and Aggressive gating eliminate guesswork for common scenarios, while manual adjustment options let you customize settings for unique recordings. Visual feedback including a real-time waveform display, before/after comparison, and a visual gate activity indicator help you understand exactly what the gate is doing. Lookahead feature preserves important transients and sharp sounds that might otherwise be cut off, and hold time adjustment prevents unwanted retriggering.
Remove the sound of room tone and background hum during pauses between speech sections, creating tighter, more professional-sounding episodes without complex noise reduction.
Gate out the constant AC hum and room noise present only during silent moments while keeping the vocal track unaffected when someone is singing or speaking.
Eliminate unwanted ambient room noise recorded during vocal or spoken word recordings by gating silence, perfect for home studio setups without acoustic treatment.
Close the gate quickly after each drum hit to eliminate room reflections and bleed from other instruments, creating tighter, punchier drum tracks in music production.
Remove sections of background noise between interview questions and answers to create cleaner audio for podcasts or video interviews.
Gate out low-level background noise and ambient room tone to isolate and emphasize the primary sound source like a voice or instrument.
A noise gate is one of the fundamental dynamics processing tools in audio engineering, belonging to the same family of signal processors as compressors, limiters, and expanders. While a compressor reduces the dynamic range by attenuating signals that exceed a threshold, a noise gate does the opposite: it attenuates or silences signals that fall below a threshold. This makes it an invaluable tool for eliminating low-level noise that exists in the gaps between wanted audio, such as room tone between spoken phrases, amplifier hiss between guitar notes, or air conditioning hum during recording pauses.
The core mechanism of a noise gate revolves around continuous amplitude monitoring and threshold comparison. The gate's detector circuit measures the input signal level in real time—typically using RMS or peak detection—and compares it against a user-defined threshold. When the signal level exceeds the threshold, the gate opens and passes audio through unaltered. When the signal drops below the threshold, the gate closes and reduces the output level by the amount specified by the range parameter. A range of negative infinity means complete silence during gated sections, while a more moderate range like -20 dB simply reduces the noise level rather than eliminating it entirely, which can sound more natural.
The attack, hold, and release parameters control the temporal behavior of the gate and are critical for achieving natural-sounding results. Attack time determines how quickly the gate transitions from closed to fully open when the signal crosses the threshold. Very fast attack times (under 1 millisecond) preserve sharp transients like drum hits and consonant sounds in speech, but can produce an audible click if the gate opens on a non-zero-crossing point. Longer attack times create smoother openings but may soften the beginning of sounds. Hold time specifies a minimum duration the gate stays open after the signal drops below threshold, preventing rapid chattering when the signal fluctuates around the threshold level. Release time controls how quickly the gate closes, with longer releases creating gradual fade-outs that sound more natural than abrupt cutoffs.
Lookahead is an advanced feature that introduces a small delay in the audio path while letting the detector section analyze the signal in advance. This allows the gate to begin opening before the transient arrives at the output, ensuring that fast-attack sounds are never clipped or softened. The typical lookahead time is 1-5 milliseconds, which is imperceptible as a delay but makes a significant difference in preserving the natural attack characteristics of percussive and speech sounds.
A noise gate silences audio that falls below a set threshold, effectively muting quiet sections where only noise is present. Noise reduction, in contrast, tries to remove noise from all parts of the audio, including during speech or music. Gates are simpler and work well for consistent background noise between phrases.
Set the threshold just above the noise floor of your recording. Play your audio and watch the level meter - the threshold should be high enough to catch the noise during silent parts but low enough that it does not cut off quiet speech or instrument tails.
Attack controls how quickly the gate opens when audio exceeds the threshold (lower values preserve sharp transients). Release controls how quickly the gate closes when audio drops below the threshold (higher values create smoother, more natural fade-outs).
No. A noise gate only removes noise during silent sections when no one is speaking. While someone is talking, the gate is open and any background noise will pass through. For noise during speech, you would need a dedicated noise reduction tool.
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