THX: Difference between revisions

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* The DVD/VHS/LaserDisc version has a shorter and quicker version of the Deep Note that starts at the rapid pitch change. The VHS versions have a +2/higher-pitched (E note) Deep Note, which was stolen for [[Laser Video (Russia)|Laser Video]]'s 3rd logo. The DVD version has a -1.5/lower-pitched (C♯ note) version that is often re-used in some of the future logos listed below.
* The DVD/VHS/LaserDisc version has a shorter and quicker version of the Deep Note that starts at the rapid pitch change. The VHS versions have a +2/higher-pitched (E note) Deep Note, which was stolen for [[Laser Video (Russia)|Laser Video]]'s 3rd logo. The DVD version has a -1.5/lower-pitched (C♯ note) version that is often re-used in some of the future logos listed below.
* LaserDisc releases sometimes contain multiple pitches on discs, depending on the audio channel and equipment used:
* LaserDisc releases sometimes contain multiple pitches on discs, depending on the audio channel and equipment used:
** All analog and digital stereo tracks feature the +2 pitch VHS variation of the Deep Note.
** Almost all analog and digital stereo tracks feature the +2 pitch VHS variation of the Deep Note.
** Dolby Digital AC-3 tracks, meanwhile, contain one of two different variations: they either contain the C#/-1.5 pitch DVD/Tex version, or a truncated theatrical Deep Note variation in D.
** Dolby Digital AC-3 tracks, meanwhile, contain one of two different variations: they either contain the C#/-1.5 pitch DVD/Tex version, or a truncated theatrical Deep Note variation in D.
** Some copies of ''Stargate'' and ''Species'' contain the theatrical Deep Note even on the analog tracks, though others use the +2 pitch versions instead.<!--To be verified-->
** Some copies of ''Stargate'' and ''Species'' contain the theatrical Deep Note even on the analog tracks, though others use the +2 pitch versions instead.<!--To be verified-->
** The Japanese LaserDisc of ''Species'' uses the theatrical Deep Note even on the analog tracks.
** Discs 1, 4, 5 and 8 of the LaserDisc release of Tenchi Muyo! Ryo-oh-ki use the C#/-1.5 pitch DVD/Tex version of the Deep Note even on the analog tracks.
** DTS-encoded THX-certified LaserDiscs normally default to the +2 pitch versions as well, though the DTS release of ''Apollo 13'' instead uses the -1.5 pitch DVD/Tex version. (On the 1998 Japanese DTS LaserDisc of said film, the analog stereo track uses the E note)
** DTS-encoded THX-certified LaserDiscs normally default to the +2 pitch versions as well, though the DTS release of ''Apollo 13'' instead uses the -1.5 pitch DVD/Tex version. (On the 1998 Japanese DTS LaserDisc of said film, the analog stereo track uses the E note)
* PAL THX-certified releases normally have the +2 pitch Deep Note; however, a couple of PAL releases (mentioned below) have it at a higher pitch (+3, at an F note).
* PAL THX-certified releases normally have the +2 pitch Deep Note; however, a couple of PAL releases (mentioned below) have it at a higher pitch (+3, at an F note).

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