Temporal stability of long-term measures of fundamental frequency
نویسندگان
چکیده
منابع مشابه
Temporal stability of long-term measures of fundamental frequency
We investigated long-term mean, median and base value of F0 to estimate how long it takes their variability to stabilize. Change point analysis was used to locate stabilization points. In one experiment, stabilization points were calculated in recordings of the same text spoken in 26 languages. Average stabilization points are 5 seconds for base value and 10 seconds for mean and median. Varianc...
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In many speech technology based applications as well as in forensic phonetics it is desirable to obtain reliable estimates of a speaker’s fundamental frequency. We would like the measures to be accurate and reliable enough in order to be used meaningfully as a parameter in speaker identification or verification. Under optimal conditions such as when high quality studio recordings and normal spe...
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Total variance is a statistical tool developed for improved estimates of frequency stability at averaging times up to half the test duration. As a descriptive statistic, Total variance performs an exact decomposition of the sample variance of the frequency residuals into components associated with descending frequency octaves. As an estimator of Allan variance, Total variance has modest bias an...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 2014
ISSN: 0001-4966
DOI: 10.1121/1.4878076