DocumentCode
1682260
Title
On the sibilance problem in FM sound transmission
Author
Lourens, JG
Author_Institution
Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa
fYear
1991
fDate
8/30/1991 12:00:00 AM
Firstpage
6
Lastpage
11
Abstract
The received sibilant sounds on FM transmission are often distorted because of portions of high amplitude values found in the Gaussian noiselike S´s which over-modulate the instantaneous frequency beyond the IF filter band for a moment, and then RF receiver noise is demodulated. Pre-emphasis makes the effect worse. The broadcast peak program meters do not indicate peaks in random signals. Hard limiting after pre-emphasis can relieve the problem
Keywords
audio acoustics; frequency modulation; radio reception; FM transmission; RF receiver noise; hard limiting; instantaneous frequency; overmodulation; pre-emphasis; received sibilant sounds; Acoustic noise; Acoustical engineering; Amplitude modulation; Broadcasting; Filters; Frequency modulation; Gaussian noise; Humans; Noise level; Radio frequency;
fLanguage
English
Publisher
ieee
Conference_Titel
Communications and Signal Processing, 1991. COMSIG 1991 Proceedings., South African Symposium on
Conference_Location
Pretoria
Print_ISBN
0-7803-0040-8
Type
conf
DOI
10.1109/COMSIG.1991.278214
Filename
278214
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