Acoustic measures of roughness in pathological voice  

Oleh:

IMAIZUMI, S.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Phonetics vol. 14 no. 3/4 (Dec. 1986), page 457 - 462.

Ketersediaan

Perpustakaan PKBB Nomor Panggil: 405/JOP/14 Non-tandon: tidak ada Tandon: 1

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Isi artikel

In order to develop an assessment system for voice quality to be used in voice clinics, acoustic measures of "roughness" in pathological voices were investigated. The extracted measures were (I) modulation indices representing periodical variations in the pitch period, in the amplitude and in the waveform; (2) a pitch perturbation quotient and (3) an amplitude perturbation quotient. The results show that "roughness" is correlated not only with the multiplicative variations which occur over several pitch periods but also with those synchronous with the vocal pitch period.

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