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AudioOverlay[{audio1,audio2,…}]

returns an audio object by overlaying all audioi.

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

AudioOverlay

AudioOverlay[{audio1,audio2,…}]

returns an audio object by overlaying all audioi.

Details and Options

  • When overlaying audio objects, channel of the resulting audio is an overlay of all ^(th) channels of all audioi that have at least channels. The overlaid values are accumulated.
  • All audioi are conformed to have the same duration, data type, number of channels, and sample rate.
  • AudioOverlay takes a SampleRate option to specify the sample rate of the resulting Audio object. By default, the highest sample rate available is used.

Examples

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Basic Examples  (2)

Overlay two audio objects:

Wolfram Language code: AudioOverlay[{Audio[{1}], Audio[{1}]}]//AudioData
Wolfram Language code: a1 = .5AudioGenerator["Sin"]; a2 = .5AudioGenerator["White"];
Wolfram Language code: AudioOverlay[{a1, a2}]
Wolfram Language code: AudioPlot[%, PlotRange -> .01]

Overlay two audio signals using a specified offset:

Wolfram Language code: a1 = .5AudioGenerator[{"Sin", 5000}]; a2 = .5AudioGenerator["White"];
Wolfram Language code: AudioOverlay[{{a1, 0}, {a2, 0.5}}]

Spectrogram of the overlaid signal:

Wolfram Language code: Spectrogram[%, FrameTicks -> None]

Scope  (4)

Control the offset between the audio objects to be overlaid:

Wolfram Language code: a1 = .5AudioGenerator["Sin"]; a2 = .5AudioGenerator["White"];
Wolfram Language code: overlayed = AudioOverlay[{{a1, .5}, {a2, 1}}]
Wolfram Language code: AudioPlot[%]

Overlay audio objects with different types:

Wolfram Language code: a1 = AudioGenerator["Sin", 1, "SignedInteger8"]; a2 = AudioGenerator[{"Sin", 200}, 1, "Real"];
Wolfram Language code: AudioOverlay[{a1, a2}]
Wolfram Language code: AudioType[%]

Overlay audio objects with different sample rates:

Wolfram Language code: a1 = AudioGenerator["Sin", SampleRate -> 10000]; a2 = AudioGenerator[{"Sin", 200}, SampleRate -> 44100];
Wolfram Language code: AudioJoin[{a1, a2}]
Wolfram Language code: AudioSampleRate[%]

Join audio objects with different numbers of channels:

Wolfram Language code: a1 = .5AudioChannelCombine[Table[AudioGenerator["Sin", 1.5], 2]]; a2 = .5AudioGenerator["White"];
Wolfram Language code: AudioOverlay[{a1, a2}]
Wolfram Language code: AudioPlot[%]

Options  (1)

SampleRate  (1)

The SampleRate option can be used to control the sample rate of the result:

Wolfram Language code: a1 = AudioGenerator["Sin"]; a2 = AudioGenerator["White"];
Wolfram Language code: AudioOverlay[{a1, a2}, SampleRate -> 22050]//AudioSampleRate
Wolfram Research (2016), AudioOverlay, Wolfram Language function, https://reference.wolfram.com/language/ref/AudioOverlay.html.

Text

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

CMS

Wolfram Language. 2016. "AudioOverlay." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/AudioOverlay.html.

APA

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

BibTeX

@misc{reference.wolfram_2026_audiooverlay, author="Wolfram Research", title="{AudioOverlay}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/AudioOverlay.html}", note=[Accessed: 13-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_audiooverlay, organization={Wolfram Research}, title={AudioOverlay}, year={2016}, url={https://reference.wolfram.com/language/ref/AudioOverlay.html}, note=[Accessed: 13-June-2026]}