Browser FFmpeg recipe

Normalize Audio Online with FFmpeg

Create an MP3 with more consistent perceived loudness.

Command

Run this FFmpeg command

ffmpeg -i input.mp3 -af loudnorm=I=-16:TP=-1.5:LRA=11 -b:a 192k normalized.mp3

When to use it

  • podcasts
  • voice recordings
  • volume cleanup

How it works

  1. Upload the audio file.
  2. Run the loudness normalization filter.
  3. Download the normalized MP3.

Option reference

OptionWhat it does
loudnormApplies loudness normalization.
I=-16Targets integrated loudness around -16 LUFS.
TP=-1.5Sets a true peak target.

Practical notes

  • Single-pass loudnorm is convenient but less exact than two-pass desktop workflows.
  • Use volume adjustment for a simple gain change instead.

FAQ

Is this good for podcasts?

It is a practical browser preset for podcast-style loudness cleanup.

Will normalization fix noisy audio?

No. It changes loudness, not background noise.