发明名称 |
Sound measuring apparatus and method, and audio signal processing apparatus |
摘要 |
A sound measuring apparatus for measuring a sound-arrival delay time from a speaker to a microphone on the basis of a result obtained by outputting a test signal from the speaker and picking up the test signal using the microphone includes the following elements. A control unit performs control so that the test signal is expanded in a time axis and is then output from the speaker. A delay time measuring unit measures an expansion-based measured delay time on the basis of a delay time that is measured on the basis of a time difference between the test signal expanded in the time axis and output from the speaker and a signal obtained from the microphone by picking up the output expanded test signal, and obtains the sound-arrival delay time as the expansion-based measured delay time.
|
申请公布号 |
EP1777991(A2) |
申请公布日期 |
2007.04.25 |
申请号 |
EP20060255343 |
申请日期 |
2006.10.17 |
申请人 |
SONY CORPORATION |
发明人 |
KINO, YASUYUKI |
分类号 |
H04S7/00;H04R29/00;H04S1/00;H04S3/00 |
主分类号 |
H04S7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|