منابع مشابه
Characterization for imperfect polarizers under imperfect conditions.
The principles for measuring the extinction ratio and transmittance of a polarizer are formulated by use of the principal Mueller matrix, which includes both polarization and depolarization. The extinction ratio is about half of the depolarization, and the contrast is the inverse of the extinction ratio. Errors in the extinction ratio caused by partially polarized incident light and the misalig...
متن کاملNeural correlates of the pitch of complex tones. II. Pitch shift, pitch ambiguity, phase invariance, pitch circularity, rate pitch, and the dominance region for pitch.
1. The neural correlates of low pitches produced by complex tones were studied by analyzing temporal discharge patterns of auditory nerve fibers in Dial-anesthetized cats. In the previous paper it was observed that, for harmonic stimuli, the most frequent interspike interval present in the population of auditory nerve fibers always corresponded to the perceived pitch (predominant interval hypot...
متن کاملMusical pitch identification by absolute pitch possessors.
Musical pitch identification was investigated in two experiments in which absolute pitch (AP) possessors and nonpossessors categorized tones presented in isolation into predetermined pitch classes. Stimuli consisted of 60 different tones per octave (at intervals of 20 cents). The experiments were designed to minimize the possibility that subjects could use strategies other than AP in perfi~rmin...
متن کاملIs relative pitch specific to pitch?
Melodies, speech, and other stimuli that vary in pitch are processed largely in terms of the relative pitch differences between sounds. Relative representations permit recognition of pitch patterns despite variations in overall pitch level between instruments or speakers. A key component of relative pitch is the sequence of pitch increases and decreases from note to note, known as the melodic c...
متن کاملPitch Range is not Pitch Range
This paper presents a phonetic analysis of pitch range as perceived and measured on utterance and syllable level. A previous analysis of read speech showed that German speakers produced a larger pitch-range on utterance level, whereas Swiss German speakers produced a larger pitch-range on syllable level. This analysis was based on the production of broadcasters reading news messages and a fairy...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 2018
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.360.6389.678