In Reply to: RE: DSD [A Reprise]... posted by AbeCollins on September 11, 2014 at 22:27:41:
"Sure Sony invented "DSD". They are credited with developing and bringing practical application of sigma-delta modulation ADC to the audio entertainment industry, and they called it DSD."
I would not confuse inventing with marketing a technology for a particular application.
Steve Jobs and Steve Wozniak brought 1 bit audio technology to the telephone hacking community with the Apple II (or maybe Apple I) around 1980. The built in speaker was connected to a software controlled flip flop. Generating the two tones for a Blue Box required a form of pulse density modulation, since at least three level signaling was needed to sum the output of two square waves.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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Follow Ups
- RE: DSD [A Reprise]... - Tony Lauck 09/12/1407:09:23 09/12/14 (1)
- RE: DSD [A Reprise]... - AbeCollins 09:44:13 09/12/14 (0)