Can I apply only a fade in or only a fade out?
Yes. Set either duration to zero when you only need the other effect. At least one fade duration must be greater than zero before processing.
Drop an audio file here, or click to select
Add fade in and fade out effects locally.
Seconds from silence to full volume at the beginning.
Seconds from full volume down to silence.
Optional: seconds or mm:ss. Blank starts near the end when duration is detected.
Fade in and fade out effects make audio starts and endings sound smoother. They are useful for music beds, podcast intros, voice notes, narration, sound effects, meditations, lessons, and social clips.
Set a fade in duration, a fade out duration, and optionally the fade out start time. If the start time is blank, the fade out is placed near the end when the source duration can be determined.
Durations are measured in seconds and may include decimals for short, precise transitions. Fade in begins at the start of the file. For fade out, enter an explicit start time or leave it blank to place the transition at the end based on the detected audio duration.
Keep the original format when it suits the destination, or export MP3, WAV, M4A, AAC, FLAC, OGG, or Opus. Applying a fade requires audio processing and re-encoding, so conversion time and file size vary with duration, format, and device performance. Preview the downloaded result before publishing.
Yes. Set either duration to zero when you only need the other effect. At least one fade duration must be greater than zero before processing.
When the fade-out start field is empty, the tool places the fade at the end of the audio by subtracting the fade-out duration from the detected source duration.
No. A fade changes the volume envelope while keeping the timeline and playback speed. The processed result is exported as a new audio file in the selected format.
Related tools: Audio Editor · Audio Volume Changer