 | The topic of this article may not meet Wikipedia's notability guidelines for products and services. (May 2021) |
Ultra Stereo, stylized as ULTRA★STEREO, is a cinema sound system that was developed in 1984 by chief engineer Jack Cashin.[1]
| Product type | Sound format Surround sound |
|---|---|
| Owner | Ultra Stereo Labs |
| Country | United States |
| Introduced | 1984 |
| Markets | Worldwide |
It was a 4/2/4 photographic sound encoding and decoding procedure compatible with (and using the same technical basic structure, with identical sound quality as) its competitor Dolby Stereo Matrix.[2][3]
- ^ Henne, Peter (August 1999). "Ultra Sharp Jack Cashin's USL Pioneers Sound and Much More". Film Journal International. p. 34. Archived from the original on 2012-07-08. Retrieved 2025-07-04.
- ^ Stone, David (2020-07-29). Hollywood Sound Design and Moviesound Newsletter: A Case Study of the End of the Analog Age. Routledge. ISBN 978-1-000-15604-1.
- ^ Holman, Tomlinson (2014-06-20). Surround Sound: Up and running. Taylor & Francis. p. 166. ISBN 978-1-136-11589-9.