Quote:
On playback of DD EX material, or DTS ES material, my 5.1 setup (speakers set to NONE for the surround back channels) locks on to the EX or ES signal, but does not drop back down to standard DD or DTS.
This is not a bug, I don't believe. Flagged Dolby EX soundtracks must be decoded in Dolby EX (Dolby requires it), but in cases where no rear surrounds are present the receiver's EX mode knows not to steer any data there. Similarly, DTS ES Discrete tracks such as Gladiator actually contain a discrete rear surround channel, so ES must be used with 5.1 systems to decode the channel and mix it into the side surrounds.
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gonk
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