How audio is stored on film

[Redneck9]

Originally Posted by blu-ray_girl_fan

Lemme say this.

The Dolby Digital 5.1 tracks on DVDs are better quality than the audio tracks that are used in movie theaters.

No! not even...

This Is how (film based) theater audio works:

DTS: There is a time coding on the print that syncs with CD. Usually there are 2 or 3 discs, No more that 3 discs. disc 1 contains preview tracks, while discs 2 and 3 contain the feature track. Often times you will hear static during the previews because the preview disc may not contain the track for that particular title. Another reason static may be present is if the order of the previews on the film is not identical to the layout of the previews on the preview CD(sometimes distributors want the previews to be seen in a specific order and don't care to mirror the previews with the disc) Other times the projectionist could care less about the order of the previews when building a print up at 3:30 in the morning. As far as soundtrack quality goes sometimes the engineer is forced to bounce the soundtrack when mixing for the film because each channel in allocated a certain amount of space. Other times the feature requires the use of all three disc trays(Return of the King) Why? the movie is longer and needs the extra disc.

DD: Is five pulse lines on the side of the print, why 5? because the sub uses low channel crossover created by the in house equipment. If there is a large dynamic soundtrack it requires the projectionist to turn up the PA level(action films) Comedies often don't require such a boost but that varies from print to print. These tracks are also closer to the master, the engineer is never forced to bounce tracks to save space. Dolby is also more durable and the print can be viewed more times, dts soundtracks have a lifespan of 2 or 3 months.

Which is better? Dolby hands down!!! Happier patrons, Fewer technical issues. It's just all around better.