منابع مشابه
Thresholds of Audibility for Bone-conduction Headsets
Despite advantages of using headphones, including privacy and portability, headphones have one essential drawback: they cover the ears of the listener, thus deteriorating detection and localization of ambient sounds. Bone-conduction headsets leave the ears uncovered, yet maintain portability and privacy. An initial step in establishing guidelines for using these “bonephones” is taken in the pre...
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From catastrophic natural disasters to the threats our college students face, there has been a heightened demand for Mass Notification Systems (MNS) that provide clear, concise and intelligible voice messages that communicate how people should respond in an emergency. Manmade or natural, the magnitude and diversity of today’s threats have influenced the federal government and other organization...
متن کاملAudibility of Complex Tones above 20 Khz
Audibility of ultrasonic components contained in a harmonic complex tone were investigated. The level of the components varied adaptively and the maximum level investigated was 80 dB SPL / component. All subjects distinguished between sounds with and without ultrasounds only when the stimulus was presented through a single loudspeaker. When the stimulus was divided into six bands of frequencies...
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Models of tinnitus suggest roles for auditory, attention, and emotional networks in tinnitus perception. A model of tinnitus audibility based on Helson's (1964) adaptation level theory (ALT) is hypothesized to explain the relationship between tinnitus audibility, personality, memory, and attention. This theory attempts to describe how tinnitus audibility or detectability might change with exper...
متن کاملChromatic Calculations for the S1 × S1 Transfer
where on the left hand side the coefficient of XrY s is βrβs. If n is a natural number then β(X) = β([n]X), where [n]X = [n]F X is the n-series. We alse have β(X)−1 = β([−1]X), where F ([−1]X,X) = 0 = F (X, [−1]X). In fact, for any non-zero q ∈ Z(p), we can make sense of [q]X and β(X) = β([q]X). Now recall the Araki and Hazewinkel generators vn, wn ∈ BP2pn−2 for which v0 = w0 = p and vn ≡ wn mo...
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ژورنال
عنوان ژورنال: Circulation
سال: 1976
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.54.5.848