Pioneer SP-101 Synthesized Surround Processor

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kfbkfb

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Note the careful avoidance of the word - Dolby ;)

IIRC, in the early 1980s, Sony (and a few other mfrs.) also made external surround sound decoders that didn't use the Dolby MP/DS decoding system.


Kirk Bayne
 

gene_stl

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I remember being fascinated by various reverb processors and hall simulators. But like quad I never heard one neither in a store nor at some stereo friends set up and I wasn't quite fascinated enough to buy a second stereo amp and pair of speakers to try them out. Yamaha had some interesting ones too.
 

Soundfield

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I remember being fascinated by various reverb processors and hall simulators. But like quad I never heard one neither in a store nor at some stereo friends set up and I wasn't quite fascinated enough to buy a second stereo amp and pair of speakers to try them out. Yamaha had some interesting ones too.
I fell for the advertising of one of Yamaha’s “Soundfield Processors” once. It promised to be able to recreate the environment of various theatres and concert venues around the world thanks to detailed on location analysis of the acoustics of those venues and embedding them in their processing algorithms. I don’t know why they bothered. It sounded spectacularly awful. In reality, despite all the fancy selections it offered, in practice it was only capable of producing two types of sound - constricted and muffled or phasey and echoey. It was far less realistic than a simple Hafler connection and hundreds of times more expensive! One of the worst things I ever bought (and that’s saying something)!
 

gene_stl

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Thank you for sharing that. Now that you mention it, what you were interested in, is exactly what fascinated me about it.
There also were some bucket brigade devices, you could build for somewhat less money, that were also interesting. But having played with guitar amps I guess on some deep level I figured it was just modern reverb. I do remember the bit about characterizing various halls in algorithms, too. I suppose it's nice to know I didn't actually miss anything. Sometimes he who hesitates made the right decision. I am still tempted to play with them.
 
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