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Old 16th January 2019, 20:48   #16594  |  Link
Ryushin
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Join Date: Mar 2011
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Quote:
Originally Posted by Atak_Snajpera View Post
Yeah. AAC 5.1 is so bad that it can produce excellent quality at just 320 kbps. You should definitely stick with ultra old (from mid 90s) ac3.
The main issue is that that vast majority of AV receivers cannot process AAC 5.1. Most can only do 2.1. From other sources I read:
"AC3 is the lowest discrete format for true surround sound."
"AAC 5.1 isn't a format that can be sent over SPDIF/HDMI to a receiver for decoding."
Another thread: https://forum.kodi.tv/showthread.php?tid=330738

So around 2012 I had to give up using AAC and switched everything to AC3 640 or pass through the native AC3 stream. No doubt that AAC is a better audio compression format in every way compared to AC3, but AV receivers cannot process it without converting it to PCM or something like plex transcoding it to AC3 before sending it to the device.

Sucks really.
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