# Audio Noise Gate Apply a noise gate to remove low-volume noise > Canonical page: https://elysiatools.com/en/tools/audio-noise-gate - **Category:** Media - **Keywords:** audio, noise gate, agate, noise reduction ## Overview The Audio Noise Gate tool applies a noise gate to audio files, effectively removing low-volume background noise and improving overall audio clarity. It's designed for quick and easy noise reduction without complex editing. ## Inputs - **Audio File** (file): Select an audio file - **Threshold (dB)** (number): -40 - **Ratio** (number): 4 - **Attack (ms)** (number): 5 - **Release (ms)** (number): 100 - **Makeup Gain (dB)** (number): 0 - **Output Format** (select) ## When to use - When you have audio recordings with background hiss, hum, or ambient noise. - To clean up podcast or interview audio before publishing for a professional sound. - For reducing noise in music recordings, such as amplifier hum or room tone. ## How it works - Upload your audio file in a supported format like MP3, WAV, or AAC. - Set the threshold level in decibels (dB) below which noise will be attenuated. - Adjust parameters such as ratio, attack, release, and makeup gain to fine-tune the gate's behavior. - Select an output format and download the processed audio file. ## Use cases - Editing podcast episodes to remove ambient room noise and improve speech clarity. - Cleaning up voiceover recordings for videos, audiobooks, or e-learning content. - Reducing amplifier hum or hiss in home studio music recordings. ## Frequently asked questions ### What is a noise gate? A noise gate is an audio effect that mutes or reduces the volume of a signal when it falls below a set threshold, helping to eliminate background noise. ### How do I choose the right threshold? Set the threshold just above the level of the background noise you want to remove, but below the desired audio signal to avoid cutting off wanted sounds. ### What audio formats are supported for input and output? The tool supports common audio formats including MP3, AAC, M4A, OGG, Opus, FLAC, and WAV for both input and output. ### Can I use this tool for real-time audio processing? No, this tool processes uploaded audio files and does not support real-time streaming or live audio. ### What does makeup gain do? Makeup gain boosts the overall output level after gating to compensate for any volume reduction caused by the noise gate. ## Related tools - [Audio Filler Word Removal Map](https://elysiatools.com/en/tools/audio-filler-word-removal-map): Combine a timestamped transcript with the audio to mark filler words (um, uh, 嗯, 那个…) and optionally mute or remove them. - [Audio High-Pass Filter](https://elysiatools.com/en/tools/audio-high-pass-filter): Apply a high-pass filter to remove low frequencies - [Karaoke Vocal Reducer](https://elysiatools.com/en/tools/audio-karaoke-track): Attempt to remove vocals from a stereo track - [Audio Low-Pass Filter](https://elysiatools.com/en/tools/audio-low-pass-filter): Apply a low-pass filter to remove high frequencies - [Audio Noise Reducer](https://elysiatools.com/en/tools/audio-noise-reducer): Remove background noise from audio files using various noise reduction algorithms - [Audio Breath Control Editor](https://elysiatools.com/en/tools/audio-breath-control-editor): Detect breaths in speech and naturally crossfade to reduce, remove, or keep them. - [Audio Click Removal](https://elysiatools.com/en/tools/audio-click-removal): Remove clicks and pops from vinyl recordings - [Audio Declicker](https://elysiatools.com/en/tools/audio-declick): Remove clicks and pops from audio files caused by vinyl records, digital errors, or other impulsive noise sources ## Samples - [Copyright-Free FLAC Audio Samples](https://elysiatools.com/en/samples/flac-samples): Lossless FLAC audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music - [Copyright-Free MP3 Audio Samples](https://elysiatools.com/en/samples/mp3-samples): Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio - [Copyright-Free WAV Audio Samples](https://elysiatools.com/en/samples/wav-samples): Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music - [Copyright-Free Raw PCM Audio Samples](https://elysiatools.com/en/samples/pcm-samples): Raw PCM s16le audio samples featuring nature ambience and relaxing music for waveform, playback, and conversion workflows ## Related content - [Audio Restoration, Noise Repair, and Cleanup Tools](https://elysiatools.com/en/hubs/audio-restoration-repair-workflows): Diagnose and repair clicks, hum, clipping, crackle, room sound, hiss, and harshness without promising lossless restoration. - [Audio Loudness, Dynamics, and Mastering Delivery](https://elysiatools.com/en/hubs/audio-mastering-loudness-workflows): Measure LUFS, true peak, and dynamics, apply suitable control, and verify podcast, broadcast, or music audio before delivery.