| 摘要 |
PURPOSE:To provide an acoustic analysis system in which tone quality evaluation of acoustic products is accurately and efficiently executed. CONSTITUTION:Reproduced audio signals of a speaker 19 are stored in a first memory 13 through a microphone 11 and an A/D converter 12. The stored digital audio signals are read as required by a computing circuit 14A, frequency, time and level data are computed and the data are respectively stored in a first RAM 14B, a second RAM 14C and a third RAM 14D. A first comparator 16A, a second comparator 16B and a third comparator 16C compare the frequency, time and level data in a first CPU 14 against the frequency data, time data and level data in a hard disk 15. A character generating circuit 16D generates character signals based on the comparison outputs. A display 17 displays these characters and an absolute evaluation of an evaluation object speaker is conducted with respect to a reference speaker by the display contents. |
