Audio Redaction

The “Redact Audio” button will toggle the display of a timeline with an audio waveform. The waveform is locally normalized for better editing visibility so that one large peak in the media will not cause the entirety of the waveform to flatline. The timeline can be zoomed in and out by clicking the +/- magnifying glass icons or by scrolling the mouse wheel while the cursor is over the timeline.

To mark a segment of audio for redaction click and drag over the corresponding portion of the waveform and a highlighted region will mark the selection. Once a region has been drawn it can be adjusted by dragging either of the region’s sides or can be deleted by right clicking the region and selecting “Unredact”.

To remove all audio from the media click the “Remove All Audio” checkbox under the audio timeline. This will disable the audio timeline control and exported media will not contain an audio stream.

If there is no audio track for the currently loaded file, or if audio workflows are not available in your deployment, the “Redact Audio” button will be disabled.

Audio-only files

If your deployment supports audio-only workflows, upload the audio file from the Projects page, open it when it is ready, and use waveform redaction or Speech Detection to locate and redact sensitive audio. Always export and review the final audio file before sharing it.

Audio can also be muted directly from the speech transcript, including redacting everything a single speaker said in one step — see Redacting by Speaker.