You can enable and build controls for late binding audio.
The HLS standard allows multi-format streams, which means we can keep the audio and video tracks of a stream separate from each other. The video track, with multiple renditions (e.g., 240p, 480p, 720p, and 1080p) and the audio tracks (e.g., English, Spanish, French, German) can be encoded separately. The media player then chooses the desired video and audio tracks and binds them on the fly, on the client side.
You can implement various workflows, depending on your player user interface. The general workflow for the Primetime player is as follows: