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Add Audio Track

Attach an alternate audio track (dub, commentary, descriptive audio).

Accepts either a direct url Mux can fetch, or an uploaded audio file which is staged in GCS first. The Mux create-asset-track API ingests it without re-encoding video; the track row starts 'preparing' and flips to 'ready' via the video.asset.track.ready webhook.

post/v1/content/{content_id}/audio-tracks

Path parameters

content_idstring required

Response

Successful Response

{"stackTrail":"paths:/v1/content/{content_id}/audio-tracks:post:responses:201:content:application/json:schema","oasType":"schema","type":"unknown"}

Changes

Changed in 1 of the 8 revisions of this API.1