Top Sorroiund Channels not working in IAB Named CPL,s

[Shibu Paul]

Halo All, If you're experiencing issues with the top surround channels not working after changing Dolby Atmos CPL names to IAB ?.

[Harold Hallikainen]

That's interesting. It SHOULD only be a name change. Where is the IAB decoding happening (in server, CP850, CP950, etc.)? Does it indicate that ti is indeed decoding the IAB and not just playing the main sound backup track?

[Leo Enticknap]

And if it isn't (i.e. it is playing the regular AES3 channels), do you have the separate KDM needed to unlock the Atmos/IAB audio? If you have the regular KDM only, you will only get pix plus AES3 5.1 or 7.1 audio.