AudioAnnotate [audio,prop]
computes the property prop and adds it as an annotation to audio.
AudioAnnotate [audio,namespec]
adds an annotation with the specified name and values spec to audio.
AudioAnnotate
AudioAnnotate [audio,prop]
computes the property prop and adds it as an annotation to audio.
AudioAnnotate [audio,namespec]
adds an annotation with the specified name and values spec to audio.
Details
- AudioAnnotate is used to store and manipulate annotations for Audio objects.
- With AudioAnnotate [audio,…], annotations will be populated with the computed or specified annotations.
- Use AudioAnnotationLookup to access and modify annotations.
- AudioAnnotate [audio,{name1->spec1,…}] can be used to add multiple annotations.
- The property prop can be any of the properties supported by AudioLocalMeasurements .
- Additional supported properties prop include:
-
"Audible" audible intervals, RMS amplitude above 0.01"Inaudible" inaudible intervals, RMS amplitude less than or equal to 0.01"Loud" louder intervals, data-dependent threshold"Quiet" quieter intervals, data-dependent threshold"Transients" times corresponding to the beginning of any event"VoiceActivity" intervals with detected speech"VoiceInactivity" intervals with no detected speech
- Annotation value spec can be any of the following:
-
{roi1val1,…} a list of regions and values{roi1,roi2,…} a list of regionscrit any criterion supported by AudioIntervals
- Any region roii can be a time t or a time interval {t1,t2} or an Interval object.
- Annotation values vali can be any arbitrary expression.
Examples
open all close allBasic Examples (2)
Annotate an Audio object with explicit annotations:
Retrieve annotations using AudioAnnotationLookup :
Automatically compute annotations for an Audio object:
Retrieve all the annotation labels using AnnotationKeys :
Retrieve the annotation using AnnotationValue :
Scope (5)
Compute an annotation using an AudioLocalMeasurements property:
Compute an annotation using an AudioIntervals property:
Compute an annotation using an AudioIntervals criterion:
Compute an annotation using the "Transients" preset:
Compute multiple properties at a single time:
Retrieve all of the annotations:
Related Guides
Text
Wolfram Research (2019), AudioAnnotate, Wolfram Language function, https://reference.wolfram.com/language/ref/AudioAnnotate.html (updated 2020).
CMS
Wolfram Language. 2019. "AudioAnnotate." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2020. https://reference.wolfram.com/language/ref/AudioAnnotate.html.
APA
Wolfram Language. (2019). AudioAnnotate. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/AudioAnnotate.html
BibTeX
@misc{reference.wolfram_2025_audioannotate, author="Wolfram Research", title="{AudioAnnotate}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/AudioAnnotate.html}", note=[Accessed: 17-November-2025]}
BibLaTeX
@online{reference.wolfram_2025_audioannotate, organization={Wolfram Research}, title={AudioAnnotate}, year={2020}, url={https://reference.wolfram.com/language/ref/AudioAnnotate.html}, note=[Accessed: 17-November-2025]}