What does Audio Fade In & Fade Out do?
Audio Fade In & Fade Out applies a gradual gain rise at the start and a gradual gain fall at the end. The waveform shows both markers, and preview plays the ramps in the browser before you export. MP3, WAV, M4A and OGG can be opened when the browser or the local engine can read them. Export is MP3, WAV or M4A.
How to use Audio Fade In & Fade Out
- 1Upload an audio file and wait for the waveform.
- 2Set the fade in and fade out durations.
- 3Preview the ramps, or reset the durations.
- 4Choose MP3, WAV or M4A and export. Cancel stops the local job.
Supported inputs and outputs
Inputs
MP3, WAV, M4A or OGG audio
Outputs
MP3, WAV or M4A with the selected fades
Practical uses
- Softening the start of a voice-over
- Ending a music bed without a hard cut
- Previewing fade lengths before export
Browser and media limitations
- A fade cannot be longer than the file, and the two fades together cannot overlap past the end.
- A fade cannot restore audio that was already clipped.
- Preview uses the browser audio engine. Export re-encodes the sound.
- The media engine downloads the first time you export.
How local processing works
Your media is processed in this browser tab, not uploaded to a processing server. The media engine downloads on first export. Page navigation and analytics still use network requests. Download the result before closing the tab.
Frequently asked questions
Does preview re-encode the file?
No. Preview plays a gain ramp in the browser. Export is a separate local encode.
Can both fades be zero?
No. Set a fade in or a fade out longer than zero. Reset fades clears both so you can start again.
Will the channel count change?
The export keeps one or two channels when the browser could detect them. Otherwise it does not force a channel count.
Is the audio uploaded?
No. Inspection, preview and export stay in this browser tab.