Joined: Sun Dec 16, 2001 7:27 pm Posts: 6140
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DOLBY site has the following:
http://www.dolby.com/tech/mp.br.0102.Ev ... Sound.html
The next step: Dolby SR In 1986, Dolby Laboratories introduced a new professional recording process called Dolby SR (spectral recording). Like Dolby noise reduction, it was a mirror-image, encode-decode system used both when a soundtrack is recorded and when it is played back. It provided more than twice the noise reduction of Dolby A-type, and, moreover, permitted loud sounds with wider frequency response and lower distortion. The 35 mm optical soundtracks treated with Dolby SR instead of Dolby A-type not only sounded superb in cinemas equipped with new SR processors, but also played back satisfactorily in all cinemas. This led to the situation today, whereby the analog soundtracks on virtually all prints are Dolby SR tracks.
The digital age begins The next film sound development from Dolby Laboratories was Dolby Digital, introduced in 1992. Dolby Digital puts a six-channel digital optical soundtrack in addition to a four-channel SR analog track on 35 mm prints (Figure 4). This format is yet another significant step forward in film sound, providing independent left, center, right, left surround, and right surround channels, plus a sixth channel for bass effects (Figure 5). In addition to its six-channel capability, Dolby Digital provides extraordinary dynamic capability, wide frequency range, low distortion, and relative immunity to wear. Its combination of high quality, reliability, and practicality has been proved in cinemas around the world, and today it is the most popular digital format, with the most equipped cinemas worldwide and the most releases. As with previous Dolby developments, Dolby Digital did not obsolete existing cinema installations. Prints can play conventionally in any cinema, while the digital track can be reproduced in cinemas with Dolby Digital soundtrack readers and decoders.
IT SEEMS THAT WHAT PLAYS AT AMC IS DOLBY SR. It's not as good as Dolby Digital as Dolby SR is only for back-up. AMC official reply that SR-D is DOLBY DIGITAL format is ERRONEOUS. Perhaps even they don't know.
Rana
SO, I still have to see my first Hindi movie in Dolby Digital. Devdas that I saw at Cinesphere was in DTS and the theatre Rocked. Devdas at AMC that I saw must have been in SR-D. Shakti at AMC was SR-D as I know.
What's the audio format at Albion in Toronto?? I think it is one release older than SR-D.
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