使用quicktime播放器無法輸出5.1聲道

Forerunner

我的主機板是gigabyte MA-770 UD3 v2
用內置的聲效晶片
玩遊戲時正常可以輸出5.1
但是在quicktime上只出了兩聲道(我已在設定中調為5.1輸出)
到底是什麼問題呢?

Forerunner

推
沒有知道嗎?

NOPSS

個問題，個source 是 5.1 聲道的嗎？

Forerunner

原帖由 NOPSS 於 2009-7-14 23:18 發表
個問題，個source 是 5.1 聲道的嗎？

係,段片係5.1

Forerunner

我依家用kmplayer就可以出到5.1
但係quicktime都一樣係唔得..

NOPSS

http://forums.macrumors.com/archive/index.php/t-290773.html

localoidMar 25, 2007, 11:10 PM
So what exactly CAN get true surround out of Apple's 6-channel AAC movie trailers? Only a product like the Firewave and speakers that have 6-channel input? Never made much sense to me. :confused:

Correct. I have a Firewire sound device, w/6 channels out, and Apple Quicktime 5.1 surround sound will playback in iTunes or QT Pro on discrete channels if "speakers" are configured accordingly in Audio Midi Devices (in Utilities).

In "theory" at least, there are other methods that should allow some-degree of surround sound playback; those topics and theories are addressed in the article mentioned at the beginning of this thread @ ThisMuchIKnow (http://www.thismuchiknow.co.uk/?p=34), from which the following quote is taken:

If Apple are saying “we support 5.1″ to mean “we support Dolby Pro Logic II”, what they really mean is:

“If you have an existing QuickTime-friendly movie with a stereo soundtrack, which happens to have Dolby Pro Logic II 5.1 information matrix-encoded into it, then we’ll happily play that stereo soundtrack to your amplifier. If your amplifier then happens to detect and decode the Dolby Pro Logic II encoding, then you’ll get 5.1 sound out of your speakers.”

But at this point in time we have no real proof that Apple actually said :apple: tv does support 5.1, and actual "controlled experiments" with Apple TV in regards to surround sound have been few and far between. So, at this point in time, what we don't know (for certain) about :apple: tv amounts to more than we actually do know (for certain)...

Someone should take a known QT 5.1 sound file, play it via :apple: tv that's correctly connected to a receiver w/Dolby Pro Logic and report what they're able to get (sound wise) out of this experiment.

Until then... confusion will reign in regards to this topic.

NOPSS

好像 Quicktime 7.6 on mac support 5.1

但是 window 的 quicktime 就不多清楚