David E. Blackmer

Source: Wikipedia, the free encyclopedia.

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.[1]

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.[2]

Blackmer attended

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.

A partial list of patents held by David Blackmer

References

  1. ^ Hoffman, F. (2004), Encyclopedia of Recorded Sound, Volume 1 (revised ed.), Taylor & Francis
  2. ^ Blackmer, David (1999). "The World Beyond 20 kHz" (PDF). Earthworks Audio. Retrieved June 1, 2014.

External links