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Dolby Digital audio being played as PCM


schmitty
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schmitty

Hi,

 

I have my Apple TV HD set to play Dolby Digital 5.1, and am trying to play media ripped from DVD into mkv h264 ac3. It is playing back as PCM. I have tried playing Dolby content from the Apple TV+ app, and it works fine. I believe this to be an issue with the Emby Theatre app. I am aware that mp4, mov and m4v are natively supported by the Apple TV. Emby Server is direct streaming to mp4 from what I can see.

ffmpeg-directstream-b9a0b094-32e1-4d53-997b-8328c1cd5e67_1.txt

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vdatanet

Your AC3 file is stereo not 5.1. My AVR also displays PCM when I play AC3 mono and stereo files. Instead, when I use nvidia shield the AVR displays Dolby Digital. Maybe Apple TV only bitstreams AC3 5.1

15:55:12.659     Stream #0:1(eng): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s (default)
15:55:12.659     Metadata:
15:55:12.659       title           : English - Dolby Digital 2.0
15:55:12.659       BPS-eng         : 192000
15:55:12.659       DURATION-eng    : 00:19:32.992000000
15:55:12.659       NUMBER_OF_FRAMES-eng: 36656
15:55:12.659       NUMBER_OF_BYTES-eng: 28151808
Edited by vdatanet
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