| 摘要 |
PROBLEM TO BE SOLVED: To perform processing based on accelerated and simplified operation in acoustic data retrieval for retrieving acoustic information in a library with acoustic information as a key. SOLUTION: Power for each musical scale is found from the acoustic of data base and keys by acoustic and normalization, that value is quantized into three large, medium and small values, the feature data of acoustic to be retrieved and key acoustic are prepared (100) and the coincidence of the feature data of acoustic to be retrieved and key acoustic is decided while using only three large, medium and small values (113). Thus, only by designating a parameter to be used for frequency analysis and the time of acoustic to decide coincidence, high-speed acoustic retrieval is performed with the feature data of a little bits. |
