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The Yamaha DSP-1 was a revolutionary piece of early
home theater
surround sound equipment, produced in
1985 by the
Yamaha Corporation. The DSP-1 (referred to by
Yamaha as a Digital Sound field Processor) allowed owners to
synthesize up to 6-channels of surround sound from 2 channel stereo sound
via a complex
digital signal processor (DSP). Much like today's home theater
receivers the DSP-1 offered sixteen "sound fields" created through the DSP
including a jazz club, a cathedral, a concert hall, and a stadium.
However, unlike today's receivers, these sound field modes were highly
editible, allowing the owner to customize the effect to his or her own
personal taste. The DSP-1 also included an analog
Dolby Surround decoder as well as other effects such as real-time echo
and pitch change.
Oddly, most of the DSP-1's controls are on the unit's remote control.
This can make it difficult for collectors to find a complete functioning
unit.
Yamaha has kept the DSP prefix for many of it's home DSP and audio
receiver products.
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