MODULATION MASKING FOR RECURRENT LOW-NOISE NOISE MASKER
作者： D. J. Kutzner
DOI:
关键词: Frequency domain 、 Pulse-amplitude modulation 、 Amplitude modulation 、 Bandwidth (signal processing) 、 Autocorrelation 、 Acoustics 、 Low noise 、 Spectral density 、 Mathematics 、 FREP
摘要: The main purpose of these investigations was to examine modulation masking phenomenon for recurrent low-noise noise masker. Such masker is characterized by three parameters, namely: repetition frequency, frep, centre fo, and bandwidth, b. parameter frep not reflected in the signal power spectrum related autocorrelation period. parameters fo b describe spectral properties interfering signal, i.e. localization concentration its frequency domain. In order separate possible effects temporal measurements were carried out fo=64 Hz, b=16 Hz frep=1 s-1 (without repetition), 4 8 probe frequencies fp=1, 2, 4, 6, 8, 12, 16, 32, 52 64 Hz. rms depth 30%; carrier a 4-kHz sinusoid. conclusion that patterns are determined
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