Live v. Reproduced Sound
The dynamic range was extraordinary, thanks to automatic volume controls that turned the volume up or down to suit the storyline or musical needs. b) Magnetic soundtracks were warm and excellent. They often used 6 mag tracks on 70mm film to either side of the image
- Indoors, home sized rooms. Of course, nearby walls or low ceilings can be a problem, and were in 3 out of 4 of the rooms I've had a "good" sound system in since 1959. Yes, absorbers and diffusers helped, but the sound still didn't sound very close to "live" in my 3 out of 4 "problem rooms."
- Outdoors, even when electrically amplified music was used, and even when the speakers were not my favorite (e.g., multiple Altec A7s), the famous bands who played (for free) in Golden Gate Park, or at the "T" intersection of Haight and Stanyan streets, or in Provo Park in Berkeley, or at the Bandstand at Lake Merritt in Oakland, sounded rather good, and live. No nearby walls. Watching the musicians doesn't hurt. It didn't seem to matter how many of the listeners were naked or stoned.
- Indoors, live orchestra. Maybe 100 players. At a fair distance, there is usually little imaging, except when obvious source instruments are used (cymbals, other percussion, particularly orchestra bells, as the Steve Weiss company puts it, "piercing melodic voice required to cut through any ensemble). Once, listening hard, while sitting in the balcony, the bells were the only thing that seemed to image. But, it sounded "live," just not as detailed as it might have been.
- Indoors, Cinema. Perhaps the widest range of quality of all. a) Old-fashioned optical tracks are the worst. They usually had terrible frequency response, very high distortion, and noise. Except for one system, used to exhibit Walt Disney's Fantasia (1940). See Scientific American, January 1941, by Peck. They used the highest quality optical sound film (they said), and up to 45 sound locations in each of the 13 theaters that could be equipped for this early stereo multichannel display. A sound (violins) could follow a shooting star as it crosses the proscenium arch and exits through the upper left wall, as it loses SPL, CUT TO "our" POV as we [the audience] then ride along [with? on?] the shooting star. Much later, choir members are heard coming down the theater aisles and entering a cloistered area composed of trees. T
The dynamic range was extraordinary, thanks to automatic volume controls that turned the volume up or down to suit the storyline or musical needs. b) Magnetic soundtracks were warm and excellent. They often used 6 mag tracks on 70mm film to either side of the image
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