发明名称 |
SOUND RECOGNITION DEVICE, FEATURE QUANTITY CONVERSION MATRIX GENERATION DEVICE, SOUND RECOGNITION METHOD, FEATURE QUANTITY CONVERSION MATRIX GENERATION METHOD AND PROGRAM |
摘要 |
<p>PROBLEM TO BE SOLVED: To improve sound recognition accuracy.SOLUTION: A feature quantity conversion matrix storage part 16 stores a feature quantity conversion matrix learned by using a sound signal labelled with two or more sound variation factors containing at least an utterance style. A feature quantity analysis part 14 generates an input sound feature quantity by extracting a sound feature quantity on the basis of the input sound signal. A feature quantity conversion matrix selection part 20 selects a proper feature quantity conversion matrix with respect to the input sound feature quantity from the feature quantity conversion matrix for each sound variation factor. A feature quantity conversion part 21 generates a converted sound feature quantity by applying the selected feature quantity conversion matrix with respect to the input sound feature quantity in multi-stages. A recognition processing part 22 outputs a recognition result obtained by performing sound recognition on the converted sound feature quantity.</p> |
申请公布号 |
JP2015121760(A) |
申请公布日期 |
2015.07.02 |
申请号 |
JP20140023070 |
申请日期 |
2014.02.10 |
申请人 |
NIPPON TELEGR & TELEPH CORP <NTT> |
发明人 |
ASHIHARA TAKANORI;ASAMI TAICHI;AONO YUJI;SAKAUCHI SUMITAKA |
分类号 |
G10L15/22;G10L15/10;G10L15/20;G10L15/32 |
主分类号 |
G10L15/22 |
代理机构 |
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