Enhance audio & voice
Clean up the voice in an audio file: reduce background noise, make it clearer and even out the volume. Everything runs in your browser, the file never leaves your device.
MP3, WAV, M4A, OGG…, short clips work best (voice, reels, podcasts)
How it works
The tool runs your recording through the same processing chain used in small studios: a filter that cuts hum and low rumble, an equalization that brings out the voice frequencies, background-noise reduction (hiss, fan, chatter) and a compression that keeps the volume steady. The result is a clearer, more listenable voice, ready for reels, voice-overs and podcasts.
Tips for a better result
Start with Medium strength and move to Strong only if the noise is very noticeable: too much can make the voice sound slightly "metallic". Always record as close to the microphone as possible and in a quiet room: no tool works miracles on audio that started out bad, but this one still improves it a great deal.
The file you get, and how long it can be
WAV keeps the cleaned voice just as the calculation produces it, without loss, but weighs about ten megabytes a minute in stereo. MP3 at 128 kbit/s weighs about one and for a voice it is more than enough: it is written here in the browser by LAME, the free MP3 encoder (LGPL licence), which is downloaded the first time you choose it, about 130 kB. The MP3 is stereo: in a 5.1 or 7.1 file the centre channel and the side and back channels are mixed into left and right.
Cleaning looks at the whole recording at once: the background noise level and the final volume are measured over the entire file, so while it works the whole file sits in memory. For a long recording, especially on a phone, it is better to cut it into pieces first with Cut audio.