发明名称 |
TRIGGERUNG EINES MESSVERFAHRENS ZUR QUALITÄTSBEURTEILUNG VON AUDIO- UND/ODER SPRACHSIGNALEN |
摘要 |
A process and device (24) for triggering a measurement process for evaluating the quality of audio and/or speech signals enable field measurements to be carried out to determine the quality of a digital transmission. During a first step, digital values of a reference signal underlying at least part of a test signal whose quality is to be evaluated are stored. Digital values of the test signals are also at least temporarily stored. The degree to which a section of the reference signal values coincides with the test signal values is determined to trigger the measurement process as soon as a predetermined degree of coincidence is exceeded, in order to compare a further section of the reference signal values to the test signal values in the relative position in time of the reference signal and test signal values at the moment when a predetermined degree of coincidence occurs. |
申请公布号 |
DE59700423(D1) |
申请公布日期 |
1999.10.14 |
申请号 |
DE1997500423 |
申请日期 |
1997.10.21 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWAND |
发明人 |
TEICHMANN, BODO;KEYHL, MICHAEL;GERHAEUSER, HEINZ;SCHMIDMER, CHRISTIAN;EBERLEIN, ERNST |
分类号 |
G10L11/00;H04H7/04;H04H20/14;H04R29/00;(IPC1-7):H04R29/00 |
主分类号 |
G10L11/00 |
代理机构 |
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代理人 |
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