The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Neste artigo, é descrito um método de processamento digital para modificar o contraste tonal que é definido como a maior diferença de frequências entre picos e vales de curvas de altura em enunciados monossílabos. Em ambientes silenciosos e barulhentos, palavras em tons de mandarim modificados foram apresentadas a ouvintes chineses com deficiência auditiva e perda auditiva neurossensorial moderada a grave. Os ouvintes foram solicitados a identificar quatro palavras monossílabas alternativas que eram distinguíveis pelos tons 1, 2, 3 e 4, respectivamente. Empregando esse método, constatou-se que a fala modificada com contraste tonal aprimorado proporcionou ganhos moderados na porcentagem de identificação correta dos tons quando comparada aos tons de fala não modificados apenas com amplificação por compressão. Verificou-se também que a redução do contraste tonal geralmente reduzia o grau de identificação correta do tom. Estas descobertas, portanto, apoiam a afirmação de que um aparelho auditivo com modificações de tom é de fato eficaz para chineses com deficiência auditiva.
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Jian LU, Norihiro UEMI, Gang LI, Tohru IFUKUBE, "Tone Enhancement in Mandarin Speech for Listeners with Hearing Impairment" in IEICE TRANSACTIONS on Information,
vol. E84-D, no. 5, pp. 651-661, May 2001, doi: .
Abstract: In this paper, a digital processing method is described for modifying tone contrast that is defined as the greatest difference in frequencies between peaks and valleys of pitch curves in monosyllable utterances. Under quiet and noisy backgrounds, modified Mandarin tone words were presented to hearing-im- paired Chinese listeners with moderate to severe sensorineural hearing loss. The listeners were asked to identify four alternative monosyllable words which were distinguishable by tones 1, 2, 3 and 4 respectively. Employing this method, it was found that modified speech with enhanced tone contrast yielded moderate gains in the percentage of correct identification of the tones when compared to unmodified speech tones with only compression amplification. It was likewise found that reducing tone contrast generally reduced the degree of correct tone identification. These findings therefore offer support to the assertion that a hearing aid with tone modifications is indeed effective for hearing-impaired Chinese.
URL: https://global.ieice.org/en_transactions/information/10.1587/e84-d_5_651/_p
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@ARTICLE{e84-d_5_651,
author={Jian LU, Norihiro UEMI, Gang LI, Tohru IFUKUBE, },
journal={IEICE TRANSACTIONS on Information},
title={Tone Enhancement in Mandarin Speech for Listeners with Hearing Impairment},
year={2001},
volume={E84-D},
number={5},
pages={651-661},
abstract={In this paper, a digital processing method is described for modifying tone contrast that is defined as the greatest difference in frequencies between peaks and valleys of pitch curves in monosyllable utterances. Under quiet and noisy backgrounds, modified Mandarin tone words were presented to hearing-im- paired Chinese listeners with moderate to severe sensorineural hearing loss. The listeners were asked to identify four alternative monosyllable words which were distinguishable by tones 1, 2, 3 and 4 respectively. Employing this method, it was found that modified speech with enhanced tone contrast yielded moderate gains in the percentage of correct identification of the tones when compared to unmodified speech tones with only compression amplification. It was likewise found that reducing tone contrast generally reduced the degree of correct tone identification. These findings therefore offer support to the assertion that a hearing aid with tone modifications is indeed effective for hearing-impaired Chinese.},
keywords={},
doi={},
ISSN={},
month={May},}
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TY - JOUR
TI - Tone Enhancement in Mandarin Speech for Listeners with Hearing Impairment
T2 - IEICE TRANSACTIONS on Information
SP - 651
EP - 661
AU - Jian LU
AU - Norihiro UEMI
AU - Gang LI
AU - Tohru IFUKUBE
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E84-D
IS - 5
JA - IEICE TRANSACTIONS on Information
Y1 - May 2001
AB - In this paper, a digital processing method is described for modifying tone contrast that is defined as the greatest difference in frequencies between peaks and valleys of pitch curves in monosyllable utterances. Under quiet and noisy backgrounds, modified Mandarin tone words were presented to hearing-im- paired Chinese listeners with moderate to severe sensorineural hearing loss. The listeners were asked to identify four alternative monosyllable words which were distinguishable by tones 1, 2, 3 and 4 respectively. Employing this method, it was found that modified speech with enhanced tone contrast yielded moderate gains in the percentage of correct identification of the tones when compared to unmodified speech tones with only compression amplification. It was likewise found that reducing tone contrast generally reduced the degree of correct tone identification. These findings therefore offer support to the assertion that a hearing aid with tone modifications is indeed effective for hearing-impaired Chinese.
ER -