发明名称 |
Method and apparatus for checking audio signals |
摘要 |
A test signal generator adapted to generate a test signal for an audio program having at least a left and right program track, the test signal generator including a memory means holding digital data descriptive of a unique image; and converter adapted to convert the digital data into a pseudo audio test signal having a left test track and right test track. The pseudo audio test signal is attached or mixed with the respective audio program and the resulting composite signal is recorded on a respective media and/or transmitted by other means to a remote location. At the remote location, the test signal is separated and displayed using the left track and right tracks as two orthogonal components to generate a reproduction of the image. The relative orientation, spatial and geometric characteristics of the reproduced image is indicative of various parameters of the received audio program.
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申请公布号 |
US2002118842(A1) |
申请公布日期 |
2002.08.29 |
申请号 |
US20010024406 |
申请日期 |
2001.12.18 |
申请人 |
MCPHERSON ALAN J.;LYDECKER GEORGE H. |
发明人 |
MCPHERSON ALAN J.;LYDECKER GEORGE H. |
分类号 |
H04R29/00;H04S7/00;(IPC1-7):H04R29/00 |
主分类号 |
H04R29/00 |
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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