Design Considerations of Low Noise Audio Input Circuitry for a Professional Microphone Mixer

Smith AD, Wittman PH. Design Considerations of Low Noise Audio Input Circuitry for a Professional Microphone Mixer. In: AES Convention 36. Audio Engineering Society; 1969.pp. 644:1-42. Available from: https://aes.org/publications/elibrary-page/?id=1368

@inproceedings{Smith1969_1368,
  author = {Smith, A. Douglas and Wittman, Paul H.},
  title = {{Design Considerations of Low Noise Audio Input Circuitry for a Professional Microphone Mixer}},
  booktitle = {AES Convention 36},
  pages = {644:1-42},
  url = {https://aes.org/publications/elibrary-page/?id=1368},
  year = {1969},
  month = apr,
  publisher = {Audio Engineering Society}
}

TY  - CPAPER
TI  - Design Considerations of Low Noise Audio Input Circuitry for a Professional Microphone Mixer
AU  - Smith, A. Douglas
AU  - Wittman, Paul H.
T2  - AES Convention 36
SP  - 1
EP  - 42
M1  - Paper 644
PY  - 1969
DA  - 1969/04/06
UR  - https://aes.org/publications/elibrary-page/?id=1368
PB  - Audio Engineering Society
LA  - en
AB  - A survey of audio mixers made prior to the design of a recently introduced professional microphone mixer indicated a lack of uniformity in the industry, particularly in regard to methods for measuring and specifying noise performance. It is the intent of this paper to discuss to discuss some of the methods for determining noise performance which are presently in use and to suggest a preferred technique. The microphone mixer which evolved from this noise investigation is also described with emphasis on those techniques used to develop the extremely noise-free input stages used in the mixer. The performance attained is also mentioned, along with reference tables and graphs which should serve as an aid to designers and users of professional audio equipment.
ER  -