| 摘要 |
<p>A method for analyzing sound transmission paths in a system from a sound source (22) to a receiver (24) in which each sound path (Path1, Path 2, ...) is first identified from the sound source (22) to the receiver (24). These sound paths include both structure-borne as well as air-borne sound paths (106). The transfer function from each path to the receiver is measured in terms of particle velocity vector (when particle velocity sensor is used) or a set of sound pressures (when microphone array is used) (200, 202). The load at each path is measured in the actual source operation. The load at each path is multiplied by the transfer function from the path to the receiver, which represents the contribution of the path. When particle velocity vector is used as the receiving quantity, each path contribution to the particle velocity vector at the receiver is analyzed by the three-dimensional vector manner. When sound pressure distribution (or a set of sound pressure values) is used as the receiving quantity, each path contribution to the receiver is analyzed by the three-dimensional surface manner.
</p> |
