Detecting sound signals involves weighting negative deviations of test vector coefficients from reference vector coefficients more heavily than positive deviations for score computation

摘要

The method involves using score computations for classification by pattern comparison or Hidden-Markoff models. For score computation, in which the amplitude spectrum or a derived spectrum or a corresp. characteristic vector of the test signal segment is compared with a corresp. reference, negative deviations of the test vector coefficients from the reference vector coefficients are more heavily weighted than positive deviations..