AUTOMATIC SCORE TAKING METHOD AND APPARATUS

摘要

PURPOSE:To accurately identify an interval, by calculating the distance between the pitch data of a section, which is regarded as the same interval of an acoustic signal divided by segmentation processing, and an absolute intervale axis and identifying the intervale on the absolute intervale axis of the min. distance as a section intervale. CONSTITUTION:The digital acoustic signal such as singing passing through an acoustic signal input apparatus 8 and an A/D converter 7 by a CPU 1 corresponding to the order from a keyboard 4 is stored in the auxiliary memory apparatus 6 of a working memory and the program from a main memory apparatus 3 is executed. The pitch data of the acoustic signal is extracted to perform segmentation processing for dividing a section regarding the acoustic signal as the same interval. Subsequently, the distance between the pitch data of each section and each absolute intervale axis is calculated by the CPU 1 and the intervale on the absolute intervale axis of the min. distance is identified as the intervale of said section and accurate segmentation processing is performed to enhance the accuracy of an automatically taken score.