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Ramp audio from silence to full volume over a set number of seconds.
Your audio never leaves your browser. All processing uses the Web Audio API locally.
Drop an audio file to apply fade in
or click to browse — MP3, WAV, OGG, AAC, FLAC, M4A
Upload your audio file
Click 'Choose File' or drag and drop your audio onto the upload area.
Set the fade-in duration
Drag the slider to choose how many seconds the fade should last, from 0.1 seconds up to 30 seconds.
Click Apply Fade In
Hit the Apply Fade In button. The tool linearly ramps the audio from silence to full volume over the selected duration.
Download the result
Click Download to save the fade-in WAV file to your device.