Local dynamics preview

Noise Gate + Compressor Preview

Preview a short local audio range, then export MP3 or WAV with gate, compression, attack, release, and make-up gain controls.

Gate and compress a narration file

Upload standalone audio, tune dynamics on a short selected range, then export the processed file locally.

Drop an audio file here MP3, WAV, M4A, AAC, FLAC, OGG, or WebM audio up to 1.5 GB.

Choose an audio file and set the preview start and duration.
Adjust gate threshold, compression ratio, attack, release, and make-up gain.
Preview the selected range, then export the processed MP3 or WAV with FFmpeg in your browser.

Audio processing happens locally in this browser tab. Large uncompressed files can still use a lot of memory, especially on older laptops.

No. Preview renders only the selected short range so you can tune settings faster. Export processes the full file.

No. A gate reduces quiet sections and a compressor evens levels, but noisy rooms may still need manual cleanup.

The desktop app is better for long recordings, repeated exports, and finishing work after screen recording.