No 5.1 sound on Netflix & Amazon Prime Video with my Mi Box S

by Yosock

Hey guys,

I have a setup around a simple HDMI + optical switch, the mi box with my consoles are plugued in so I can output HDMI video to a videoprojector and 5.1 sound with optical to a Z906 speaker system.

Netflix & Prime Video can output 5.1 DTS / DD with my PS4 in the same setup.

Kodi & VLC can do the same on the Mi Box S once I enabled the passtrough setting.

But with Amazon Prime Video and Netflix I get no sound at all on 5.1 videos ( stereo works fine though ), I usually get a led lighting up when sound is coming to my speakers but no light at all with 5.1 content on Netflix/Amazon.

In the video settings of my Mi Box I enabled the PCM setting on Auto, the DTS setting on 30% and the other one on LINE.

Any idea why my setup won't work with Netflix & Amazon Prime Video ?

Thanks

[deleted]

Although the Mi Box has always been advertised as a device with a Dolby Audio licence, It's not until the current Android 9 beta, which is purportedly having the so much awaited Dolby Audio conversion (Dolby Digital Plus to Dolby Digital conversion) so you will be able to select the S/PDIF option inside audio setttings and the audio from Netflix and Prime Video should be converted from Dolby Digital Plus to Dolby Digital to output to your old AV receiver.

BiggussDikkuss

You will only be able to get 5.1 Netflix / Prime audio out of the Mi Boxes that are running Oreo, when they are HDMI connected to a DD+ capable audio receiver. The same limitation applies to the 2015 / 2017 Shields. Effectively all you are doing is passthru of 5.1 DD+ audio in these cases.

YES Dolby Audio advertising on the Oreo - Mi Boxes is deceptive and confusing.

Kodi and VLC can do their own internal audio remixing / downmixing.

The PS4 and devices like the 2019 Shield (now Dolby audio licensed) and the FireTV devices correctly implement Dolby audio support to give you what you want.

PS you even get DD+ with Atmos from Netflix on the Mi Box when HDMI connected to a Dolby Atmos capable audio receiver.