| 摘要 |
<p>The present invention is related to a method and an apparatus for determination of a parameter of a system generating a signal containing information about the parameter. The method comprises the step of short time Laplace transforming the signal and may be utilised for classifying the system in question in accordance with one or more determined parameters into one class of a set of predefined classes defined by predetermined ranges of values of the parameters. The invention also relates to the use of a shape of energy changes of a signal for identifying or representing features of the system generating the signal. This use may be applied to recognition of sound features perceivable by e.g. a human ear as representing a distinct sound picture. It has for example been found that the signal information relevant to recognition of speech is present in a transient part of the speech signal.</p> |
