New feature of Apple macOS Sequoia: supports Dolby Atmos HDMI pass-through

IT House reported on July 3 that in macOS Sequoia, multiple Apple applications have gained a new HDMI passthrough function (HDMI Passthrough), allowing Mac to convert unprocessed Dolby Atmos audio signals sent to a connected AV receiver or soundbar.

HDMI pass-through audio

1. New features integrated into Apple’s TV, Music and QuickTime Player.
2. After this function is enabled, users can play audio supporting Dolby Atmos and other Dolby Audio formats through HDMI passthrough.

How it works

3. When Mac is connected through an HDMI cable, the audio source signal is passed directly to the connected device for decoding and output.
4. The picture signal continues to be sent to the connected monitor.

System Support

5. Currently, it’s unclear whether this feature will be included in tvOS 18.
6. But since Apple has made it a system-level feature of macOS Sequoia, tvOS may add this feature through updates in the future.

Release Time

7. macOS Sequoia and tvOS 18 are currently in developer beta.
8. Expected to be in public testing later this month and officially released in the fall.

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