| 摘要 |
PURPOSE:To steadily produce prescribed operation sounds or good tone quality by detecting operation sounds of an air conditioner and generating and outputting a correction signal to a speaker based on the operation sounds to prevent the degradation and the variation of operation sounds. CONSTITUTION:A easing 1 is provided with an air flow passage 4 connecting an air inlet port 2 and an air outlet 3 and a blast fan 6 arranged in the air flow passage 4. Operation sounds of the air conditioner including blast sounds of the blast fan 6 are detected and are compared with preliminarily set reference operation sounds to generate the correction signal based on the difference between them, and this signal is outputted to a speaker 8, and such corrected sounds are emitted that synthesized sounds of corrected sounds and operation sounds of the air conditioner are equal to reference operation sounds. When reference operation sounds preferable on hearing are set by a reference operation sound setting means 13, synthesized sounds preferable on hearing are generated as operation sounds. |
