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- Q5233151 subject Q6647300.
- Q5233151 subject Q6939195.
- Q5233151 subject Q7234382.
- Q5233151 subject Q8244293.
- Q5233151 subject Q8907682.
- Q5233151 abstract "David E. Blackmer (January 11, 1927 – March 21, 2002) was an American audio electronics engineer, most famous as the inventor of the DBX noise reduction system and founder of dbx.As well as audio noise reduction, Blackmer worked on extending the frequency response of audio electronics beyond the conventionally accepted audible range of 20 kHz. He also published research on the value of ultrasonic frequencies in sound reproduction, claiming that the time resolution of human hearing is 5 microseconds or better—which would correspond to a frequency of 200 kHz, requiring audio equipment ideally to have a flat response to that frequency.Blackmer attended High Mowing School in Wilton, New Hampshire. He started in audio at Lafayette Radio in Boston in the 1940s and studied electronics in the U.S. Navy and at Harvard University and MIT. He later worked at Trans-Radio Recording Studio, Epsco, Hi-Con Eastern and Raytheon, where he designed telemetry systems for the Mercury space program. He founded dbx in 1971, selling it to BSR in 1979 and staying on with the company for several years. In the late 1980s he formed Earthworks, producing studio microphones, preamplifiers and studio reference monitors. He also founded Kintek (now Colortek) and Instrumentation Laboratory, as well as running the Cafe Pierrot restaurant in Wilton for a time.Blackmer was a life member of the IEEE and a fellow of the Audio Engineering Society from 1976. He was also a great reader of science fiction. He had ten children.".
- Q5233151 wikiPageExternalLink index.html.
- Q5233151 wikiPageExternalLink ?ID=23.
- Q5233151 wikiPageExternalLink www.earthworksaudio.com.
- Q5233151 wikiPageExternalLink www.vintagedbx.com.
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- Q5233151 wikiPageWikiLink Q5327332.
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- Q5233151 wikiPageWikiLink Q6471503.
- Q5233151 wikiPageWikiLink Q6647300.
- Q5233151 wikiPageWikiLink Q6939195.
- Q5233151 wikiPageWikiLink Q7234382.
- Q5233151 wikiPageWikiLink Q758847.
- Q5233151 wikiPageWikiLink Q8244293.
- Q5233151 wikiPageWikiLink Q8907682.
- Q5233151 comment "David E. Blackmer (January 11, 1927 – March 21, 2002) was an American audio electronics engineer, most famous as the inventor of the DBX noise reduction system and founder of dbx.As well as audio noise reduction, Blackmer worked on extending the frequency response of audio electronics beyond the conventionally accepted audible range of 20 kHz.".
- Q5233151 label "David E. Blackmer".