Audio Fade In/Out Online — Add Fades to Audio Free

Abrupt starts and endings sound unprofessional. The MyPDF Audio Fade tool adds smooth fade-in and fade-out transitions to your audio files — perfect for music, podcasts, presentations, and videos.

How to Add Audio Fades

1. Upload your audio file (MP3, WAV, FLAC, AAC, OGG).
2. Set fade-in duration (beginning) and fade-out duration (end) in seconds.
3. Download the faded audio file instantly.

Fade Duration Guide

Duration	Effect	Best For
0.5-1 sec	Quick fade	Sound effects, short clips
2-3 sec	Standard fade	Music tracks, podcasts
5-10 sec	Gradual fade	Ambient music, meditation
15+ sec	Very slow fade	Background music, DJ sets

Practical Tips

• Use 2-3 second fades for most music and podcast applications — long enough to sound smooth, short enough not to waste content time.
• Fade-out is more common than fade-in — many tracks start strong but need a graceful ending.
• Combine with trimming — trim the audio first with Audio Trim, then add fades for a polished result.

What fade curve is used?

The tool uses a logarithmic fade curve by default, which sounds more natural to human ears than a linear volume ramp.

Can I fade just the middle of a track?

This tool fades the start and end. For mid-track fades, split the audio with Audio Split, fade the segments separately, then merge them back.

Related Tools

• Audio Trim — trim audio before adding fades
• Audio Normalize — normalize volume levels
• Audio Merge — merge faded clips together
• Audio Volume — adjust overall volume