Set the list, then test.
Audio flags in modify mode
In [COPY TX SINK EDID and MODIFY] mode the manual lists these audio flags: L-PCM (mode, sample rate and bit width), TrueHD, DD+, DTS-HD MA and ONE BIT (each disabled, or set with mode and sample rate), plus DD and DTS (disabled, or set with mode).
Dolby Atmos is carried inside TrueHD or DD+ streams, and the unit’s flag list has no separate Atmos item. Every predefined table also comes in 7.1, 5.1 and 2.0 audio versions.
Pass-through, not processing
The unit passes PCM up to 192kHz, IEC 61937 compressed audio, DSD, DST, TrueHD, DD+, DTS, DTS-HD MA, DTS:X, HBR and Atmos, and it never compresses or down-converts the audio. Advertising a format cannot give a TV, soundbar or AVR a decoder it lacks.
Atmos over ARC: the manual notes that Atmos via ARC needs an HDMI cable that handles 192kHz ARC audio, even if it handles 600MHz video. Apple TV 4K owners should also read the dedicated Apple TV guide.
A clean audio test sequence
- Confirm the source, AVR or soundbar, and display support the format you want.
- Note the Audio Dolby, Audio DTS and Audio PCM fields for EDID TX in the web server.
- Copy the sink EDID, or choose a predefined table with the channel count you need.
- Change one audio flag and restart the source.
- Compare the EDID RX audio fields with the format your AVR or soundbar reports.
One flag per test keeps every result traceable.