CTA Completes Recommendations for Audio on ATSC 3.0 TVs

At the Consumer Technology Association’s (CTA) Technology & Standards Fall Forum, the CTA issued new guidelines for TV sets and audio devices. The first recommendations (CTA-CEB32.5, Recommended Practice for ATSC 3.0 Television Sets, Audio) cover the audio area and were finalised in June, and it is close to finalising the video requirements ( CTA-CEB32.4, Recommended Practice for ATSC 3.0 Television Sets, Video). The ballot on the proposal closes on 6th October.

CTA-CEB32.5 recommends several audio-device capabilities in order to support ATSC 3.0, including:

  • In-home receivers able to handle at least 11 audio channels, including one 5.1 channel-based music and effects component, three dialogue audio components and a stereo video description audio program component.
  • Mobile receivers are able to decode one main audio stream and two auxiliary audio streams.
  • All receivers feature dialogue normalisation, which allows consumers to adjust volumes for a consistent audio level across different sources.