Audio Enhancer
Adjust volume (±dB) and normalize loudness — free, in your browser.
How it works
- Select an audio file — it never leaves your device.
- Choose Adjust volume (set gain in dB) or Normalize loudness.
- Click apply — the audio is re-rendered in your browser.
- Your processed audio downloads automatically.
Frequently asked questions
- Is my audio uploaded?
- No. Processing runs locally in your browser with ffmpeg.wasm; the file never leaves your device.
- What does the dB slider do?
- It shifts the loudness up or down by the chosen decibels — e.g. +6 dB makes it noticeably louder, −6 dB quieter.
- What is normalize?
- Normalize evens out loudness to a consistent broadcast level (EBU R128), useful for recordings that are too quiet or uneven.