Forward masking of frequency modulation
نویسندگان
چکیده
منابع مشابه
Frequency discrimination in forward and backward masking.
Frequency difference limens for pure tones preceded by a forward masker or followed by a backward masker were obtained across a wide range of signal levels. Relkin and Doucet [Hear. Res. 55, 215-222 (1991)] have shown that at a masker-signal delay of 100 ms, the thresholds of high-SR (spontaneous rate) auditory-nerve fibers are recovered, while the low-SR fiber thresholds are not. Therefore, fo...
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The aim of this study was to attempt to distinguish between neural adaptation and persistence (or temporal integration) as possible explanations of forward masking. Thresholds were measured for a sinusoidal signal as a function of signal duration for conditions where the delay between the masker offset and the signal offset (the offset-offset interval) was fixed. The masker was a 200-ms broadba...
متن کاملIntensity discrimination in forward masking.
A nonmonotonic intensity discrimination function was recently reported in which a midlevel hump occurred for 25-ms sinusoidal standards ranging from 20 to 100 dB SPL and presented 100 ms after an intense narrow-band noise forward masker [F.-G. Zeng et al., Hear. Res. 55, 223-230 (1991)]. This paper provides additional data on how the midlevel hump is affected by three factors of forward masking...
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The paper addresses the problem of carrier and timing synchronization for MSK modulation. Based on a second-order and a fourth-order statistical variable, an efficient data-aided algorithm is proposed to estimate the frequency offset and timing error, respectively. Numerical results show that the proposed algorithm achieves good performance in both AWGN and Rayleigh fading channels and it outpe...
متن کاملEvidence for differential modulation of primary and nonprimary auditory cortex by forward masking in tinnitus
It has been proposed that tinnitus is generated by aberrant neural activity that develops among neurons in tonotopic of regions of primary auditory cortex (A1) affected by hearing loss, which is also the frequency region where tinnitus percepts localize (Eggermont and Roberts 2004; Roberts et al., 2010, 2013). These models suggest (1) that differences between tinnitus and control groups of simi...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 2012
ISSN: 0001-4966
DOI: 10.1121/1.4754531