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When it comes to digital audio, one such large-nugget name is Harry Nyquist.
ENGADGET: Primed: digital audio basics Mobile
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Working for Bell Laboratories, Nyquist (among other things) set out theories regarding telegraph speed and transmission that would pave the way for future digital audio developments.
ENGADGET: Primed: digital audio basics Mobile
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Some years later, Claude Shannon (also of Bell Labs) would consolidate many of the prevailing ideas on the subject in his 1948 paper "A Mathematical Theory of Communication" which would reference the work of Nyquist significantly.
ENGADGET: Primed: digital audio basics Mobile
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Riding on cutting-edge technologies such as flex oDSP, super SD-FEC, and flex modulation format, this field trial achieved a record-breaking transmission distance of 1, 500 km using a super-channel PDM-16QAM-based high spectral efficiency solution, and a second record-breaking transmission distance of 3, 325 km using a super-channel Nyquist PDM-QPSK-based ultra-long-haul solution.
ENGADGET: Huawei tests 2Tbps data transmission over Vodafone's German network, calls it a 'first'