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AudioFade[audio]

returns audio in which the beginning and end of audio are faded.

AudioFade[audio,t]

fades the first and last t seconds of audio.

AudioFade[audio,{t1,t2}]

fades t1 seconds at the beginning and t2 seconds at the end.

AudioFade[video,…]

fades the first audio track in video.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Options  
Method  
Applications  
See Also
Related Guides
History
Cite this Page

AudioFade

AudioFade[audio]

returns audio in which the beginning and end of audio are faded.

AudioFade[audio,t]

fades the first and last t seconds of audio.

AudioFade[audio,{t1,t2}]

fades t1 seconds at the beginning and t2 seconds at the end.

AudioFade[video,…]

fades the first audio track in video.

Details and Options

  • AudioFade fades in the signal by gradually increasing the volume of the signal from 0 to the full amplitude of the signal at the beginning, and similarly fades out the end of the signal.
  • Fading a signal can be used to remove clicks when the audio is played back by avoiding potential discontinuities.
  • AudioFade[audio] is equivalent to AudioFade[audio,.001].
  • The shape of the ramp can be specified using a Method option. Possible settings are:
  • "Cosine"cosinusoidal fade
    "Exp"exponential fade
    "Linear"linear fade
    "Log"logarithmic fade
    "Rounded"rounded fade
    "SCurve"sinusoidal fade (default)

Examples

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Basic Examples  (2)

Fade in a sinusoidal audio signal:

Plot the waveforms of the original and resulting signals:

Specify different fading times for the beginning and end of the signal using exponential fading:

Scope  (3)

The fade time can be specified as a time quantity:

Specify the fade time for beginning and end independently:

Specify the number of samples to be faded:

Process the audio track of a video:

Options  (2)

Method  (2)

By default, a sinusoidal curve is used to add the fade:

Specify the fade shape:

Applications  (2)

AudioFade is useful to avoid clicks due to sudden phase jumps when joining multiple audio objects:

Without fading, there is a sudden jump at the joining point:

Eliminate the jump:

Use AudioFade to create a sound with a slow attack time:

Wolfram Research (2016), AudioFade, Wolfram Language function, https://reference.wolfram.com/language/ref/AudioFade.html (updated 2024).

Text

Wolfram Research (2016), AudioFade, Wolfram Language function, https://reference.wolfram.com/language/ref/AudioFade.html (updated 2024).

CMS

Wolfram Language. 2016. "AudioFade." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2024. https://reference.wolfram.com/language/ref/AudioFade.html.

APA

Wolfram Language. (2016). AudioFade. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/AudioFade.html

BibTeX

@misc{reference.wolfram_2025_audiofade, author="Wolfram Research", title="{AudioFade}", year="2024", howpublished="\url{https://reference.wolfram.com/language/ref/AudioFade.html}", note=[Accessed: 11-August-2025]}

BibLaTeX

@online{reference.wolfram_2025_audiofade, organization={Wolfram Research}, title={AudioFade}, year={2024}, url={https://reference.wolfram.com/language/ref/AudioFade.html}, note=[Accessed: 11-August-2025]}