NASA NTRS · 19740021680
Automatic measuring device for octave analysis of noise
Abstract
An automatic decoder is described that counts noise levels by pulse counters and forms audio signals proportional in duration to the total or to one of the octave noise levels. Automatic ten fold repetition of the measurement cycle is provided at each measurement point before the transition to a new point is made.
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Memnonov, D. L., Nikitin, A. M.. 1973-06-01. Automatic measuring device for octave analysis of noise. https://ntrs.nasa.gov/citations/19740021680
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