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R. Dolby, "An Audio Noise Reduction System," Paper 543, (1967 October.). doi: R. Dolby, "An Audio Noise Reduction System," Paper 543, (1967 October.). doi:
Abstract: A noise reduction system which is suitable for use with high quality audio recording or transmission channels is described. A special signal component, derived from four band splitting filters and low level compressors, is combined with the incoming signal during recording or sending. During reproduction, the additional component is removed in a complementary way; any noises acquired in the channel are attenuated in the process. Practical features of the system include: 10 dB (unweighted) noise reduction; imperceptibility of signal modulated noise effects; level frequency response (overall); accuracy of reproduced signal dynamics; low distortion; low internal noise level; stability of characteristics.

@article{dolby1967an,
author={dolby, ray},
journal={journal of the audio engineering society},
title={an audio noise reduction system},
year={1967},
volume={},
number={},
pages={},
doi={},
month={october},} @article{dolby1967an,
author={dolby, ray},
journal={journal of the audio engineering society},
title={an audio noise reduction system},
year={1967},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={a noise reduction system which is suitable for use with high quality audio recording or transmission channels is described. a special signal component, derived from four band splitting filters and low level compressors, is combined with the incoming signal during recording or sending. during reproduction, the additional component is removed in a complementary way; any noises acquired in the channel are attenuated in the process. practical features of the system include: 10 db (unweighted) noise reduction; imperceptibility of signal modulated noise effects; level frequency response (overall); accuracy of reproduced signal dynamics; low distortion; low internal noise level; stability of characteristics.},}

TY - paper
TI - An Audio Noise Reduction System
SP - EP -
AU - Dolby, Ray
PY - 1967
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 1967 TY - paper
TI - An Audio Noise Reduction System
SP - EP -
AU - Dolby, Ray
PY - 1967
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 1967
AB - A noise reduction system which is suitable for use with high quality audio recording or transmission channels is described. A special signal component, derived from four band splitting filters and low level compressors, is combined with the incoming signal during recording or sending. During reproduction, the additional component is removed in a complementary way; any noises acquired in the channel are attenuated in the process. Practical features of the system include: 10 dB (unweighted) noise reduction; imperceptibility of signal modulated noise effects; level frequency response (overall); accuracy of reproduced signal dynamics; low distortion; low internal noise level; stability of characteristics.