Audio

Guide for labeling audio data.

Overview

When you attach an audio dataset to a project, the Labelbox Editor interface will automatically adjust for audio labeling.

For more information on importing audio files to Labelbox, see our docs on Audio import format.

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Supported annotation types

Below are the annotation types that you may include in your ontology for labeling audio data.

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Classifications

Classifications can be applied at the file level only. The Editor does not currently support classifications at the timestamp level, ie. "Agent speaking" from 1:05 to 1:38.

Annotation type

Import

Export

Radio classification

See reference

See reference

Checklist classification

See reference

See reference

Free-form text classification

See reference

See reference

Dropdown classification

Deprecated

Deprecated

Play the audio file

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Audio files display in the Labelbox Editor with a waveform for visualization and basic player controls. Use the play/pause button to begin audio playback, and press the back/forward 10-second buttons to quickly replay or advance playback. You can also click anywhere on the waveform to instantly move the playhead to your desired location.

Radio classification

Create a radio classification by activating the classification question and inputting the answer value. In the below example, press 3, j, and esc to complete the radio classification.

Once all classifications have been completed, press e to submit your label.

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Checklist classification

Create a checklist classification by activating the classification question and inputting the answer value(s). In the below example, pressing 2 and pressing Down + Enter on the answer values completes the checklist classification.

Once all classifications have been completed, press e to submit your label.

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Free text classification

Create a free text classification by activating the classification question and inputting the answer value. In the below example, pressing 1, typing the answer value, and pressing Enter completes the free text classification.

Once all classifications have been completed, press e to submit your label.

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Audio specific hotkeys

Function

Hotkey

Description

Play/Pause

Space

Play or pause the audio playback.


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