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Audio resolution for "cast" protocol, and the audio output resolution of devices

AMTPROD
Community Member

Alright everyone, let's see how we can get some hard definitive data going here!

What is the audio resolution the "cast" protocol uses from "Chrome Browser" on a Mac,  or from iOS?

24/48khz? 16/48?

Does it turn ALL resolution into 24/48khz?

What is the audio output from the ChromeCast Ultra's HDMI out?

24/48khz? 16/48?

Does it uprez/downrez everything to 24/48khz at the device itself? Meaning it maybe receiving a cast stream from certain programs at 24/96khz, but it is down-rezing to 24/48khz internally and then out via HDMI?


When I "cast" from a program like Qobuz, (either laptop or iOS phone) any song file that is 24/192khz says it's only sending-"casting" at 24/96khz.......but at my DAC it says "48khz".  
Anyone able to explain this?

Many thanks! 

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