发明名称 |
Voice processing device for maintaining sound quality while suppressing noise |
摘要 |
A voice processing device includes a zone detection unit which detects a voice zone including a voice signal or a non-steady sound zone including a non-steady signal other than the voice signal from an input signal and a filter calculation unit that calculates a filter coefficient for maintaining the quality of the voice signal in the voice zone while suppressing the non-steady signal in the non-steady sound zone according to the detection result by the zone detection unit, in which the filter calculation unit calculates the filter coefficient by using a filter coefficient calculated in the non-steady sound zone for the voice zone and using a filter coefficient calculated in the voice zone for the non-steady sound zone. In one embodiment, a verification unit verifies a constraint condition of the filter coefficient based on whether the amount of suppression of the non-steady sound signal that would result from applying the filter to the sound signal is less than or equal to a threshold value.
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申请公布号 |
US8510108(B2) |
申请公布日期 |
2013.08.13 |
申请号 |
US201113041705 |
申请日期 |
2011.03.07 |
申请人 |
SEKIYA TOSHIYUKI;ABE MOTOTSUGU;SONY CORPORATION |
发明人 |
SEKIYA TOSHIYUKI;ABE MOTOTSUGU |
分类号 |
G10L15/20 |
主分类号 |
G10L15/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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