Opus DTX audio optimization now available for Video Rooms

The Programmable Video JavaScript SDK 2.8.0 enables Opus discontinuous transmission (DTX) by default for all audio tracks. Opus DTX significantly reduces the bandwidth used by an audio track when the participant is silent. It also reduces the CPU load on the subscriber side since there are fewer audio frames to decode.

Video applications typically have a small number of participants speaking and so the audio bandwidth consumed by silent participants is wasted. Although this feature will improve performance in all Video applications the impact will be most noticeable in larger multi-party Video Rooms.

For additional information and for details on disabling DTX, see the JavaScript SDK changelog.