发明名称 |
VOICE MIXING DEVICE AND METHOD, AND MULTIPOINT CONFERENCE SERVER |
摘要 |
<p>A sound mixing apparatus includes mixing processing units 1 1 to 1 k provided according to sampling frequencies and speaker detector 400 that selects at least one speaker sound signal out of plural sound signals inputted to mixing processing units 1 1 to 1 k . Each of mixing processing units 1 1 to 1 k adds up speaker sound signals having the same sampling frequency selected by speaker detector 400 to generate a first added-up sound signal, converts the sampling frequency of the first added-up sound signal into a sampling frequency processable by the other mixing processing units, and further adds up the first added-up sound signal and the first added-up sound signal converted into a sampling frequency processable by the processing unit and supplied from the other mixing processing units.</p> |
申请公布号 |
EP2226995(A1) |
申请公布日期 |
2010.09.08 |
申请号 |
EP20090709365 |
申请日期 |
2009.01.28 |
申请人 |
NEC CORPORATION |
发明人 |
ITO, HIRONORI;OZAWA, KAZUNORI |
分类号 |
H04M3/56;G10L19/00 |
主分类号 |
H04M3/56 |
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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