
The logo shines after the blue rectangle fades out. When the THX logo appears, appears under THX. On LaserDisc releases from THX, the blue rectangle appears as usual, but with a difference: the message reads "Mastered and Duplicated for Audio and Video Performance" in Arial Narrow font.The audio (in this, and both 1995 A & B variants) is also in +2 higher (on VHS & LD +3 on PAL releases), or -1.5 lower on DVDs. 1995 C: Both the audio and the trailer is shorter than the standard 1983-1997 theatrical version.Those texts fade in with the THX logo instead of appearing after the blue outline disappears, and they sparkle while the THX logo shines. That text appears longer than the regular version, and "DIGITALLY" appears above the THX logo and "MASTERED" appears below that logo.

The gray text reading "The Audience is Listening" is replaced with "Digitally Mastered for Optimal Video and Audio Performance" in Arial font in white and arranged in the center of the outline. It was exclusive to home video releases and revised a bit more.


The version available online (via THX) has a noticeable audio dropout at 0:23.Īvailability : Extinct. Three voices are heard per note, slightly detuned. The lower notes grow deeper, and the higher voices grow more shrill, becoming an ascending dramatic sound until the sounds stop in one pitch. This part of the Deep Note then repeats, and eventually the voices proceed to their target notes, a drastic change of three octaves.

Each voice moves slowly and randomly in a frequency sweep between 200hz and 400hz. It starts off with a group of 30 descending synthesized voices reminiscent of the sound of an airplane flying. Music/Sounds : A synthesized crescendo sound effect known as "Deep Note". FX/SFX : The text and THX logo fading-in and out.
