发明名称 |
Sound pickup apparatus and echo cancellation processing method |
摘要 |
A sound pickup apparatus selecting one of a plurality of microphones and performing echo cancellation processing for a plurality of microphones with an echo canceller to output a sound. The sound pickup apparatus sets a “learning mode” when the power supply is turned on, outputs a calibration sound from an echo cancellation calibration sound generator via a speaker, detects an echo at that time with a microphone and obtains an echo cancellation use parameter canceling the echo. |
申请公布号 |
US8238547(B2) |
申请公布日期 |
2012.08.07 |
申请号 |
US20050125541 |
申请日期 |
2005.05.09 |
申请人 |
OHKI KAZUHIRO;SUZUKI HIROYUKI;SONY CORPORATION |
发明人 |
OHKI KAZUHIRO;SUZUKI HIROYUKI |
分类号 |
H04M9/08;H04R1/32;G10L21/02;H04B3/23;H04M3/56;H04R1/34;H04R3/02;H04R27/00 |
主分类号 |
H04M9/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|