針對DD-EX的部份, 之前好像是新視聽還是高傳真(忘記了),
曾對Amp可否偵測flag做了測試.
由於DD-EX在家用擴大機的部份是給了THX,
故要能像dts-es一樣都可自動偵測到,
DD-EX要在有THX 6.1認證的AMP才行.
不曉得有無大大可證明?


Aolby Digital Surround EX was first introduced in cinemas with the release of Star Wars: Episode One The Phantom Menace. The EX format features a third surround channel for playback at the cinema's option over surround speakers located behind the audience, while the left and right surround channels are reproduced by surround speakers to the sides. To maintain compatibility, the back surround channel is matrix-encoded onto the left and right surround channels of the 5.1 mix so that no information is lost when the film is played in conventional 5.1.

Surround EX soundtracks are now also found on the DVDs, and a/v receivers are available with『either THX Surround EX or Dolby Digital EX decoding』 to derive the extra surround channel. As with EX films, DVDs with EX encoded soundtracks can be played in conventional 5.1.

The benefits of Surround EX include more realistic flyover and fly-around effects, a more stable image for atmospheres and music, and a more consistent surround effect throughout the auditorium or home viewing area. For more information on Dolby Digital EX in the home.
這是杜比網站的解說，所以不只THX認證的機種，只要AMP內含Dolby Digital EX decoder皆可解dd-ex，所以並不一定非要thx認證機種才行



但少了認證的AMP(如Denon 38xx系列),
一樣有解DD 6.1的功能, 甚至如上列諸網友所測,
是可對應的.
且片子本身沒編flag, 但實際確為DD-EX or dts-es的大有片在.

A:YES！所以判定DD-ES FLAG非一定要THX認證機種



至於對dts-es matrix 6.1的稱謂,
架構當然是以5.1為基礎, 基於Extend的用法,
dts認為只要後中置是獨立聲軌(不論是discrete or matrix),
都是dts-es的規格.
既然官方的規格是如此, 個人認為就以官方規格稱之,
畢竟大家不也是在討論專業的知識嗎?


A:非也，獨立聲軌僅指DISTRETE，MATRIX並非獨立聲軌，並不是由後中置發聲就是獨立聲軌，DTS-ES MATRIX你要說是6.1，沒人會說錯，但畢竟太多軟體DTS-ES MATRIX皆僅標5.1，所以當你看見DTS-ES 5.1，你大概就知道是MATRIX，看見DTS-ES 6.1，你大概就知道是DISCRETE，所以僅在做明確的區格，而且MATRIX事實上也僅是5.1數位獨立訊號，所以除非將來軟硬體統一說法，否則DTS-ES 5.1(MATRIX)和DTS-ES 6.1(DISCRETE)，這樣的說法是比較容易讓初學者明瞭各中差異