| 摘要 |
PROBLEM TO BE SOLVED: To make the selecting of a music to be performed quickly with only sound information without by screen information as to a CD(compact disk) music selection unit. SOLUTION: This unit is constituted so as to select and reproduce a desired disk from plural disks D1 , D2 , D3 ,... housed in a mechanical changer. In this case, the unit is made so as to be suitable to the case a user forgets the name and the text of a music and he remembers the molody of the music uncertainly and so as to retrieve the music easily and quickly with only the sound information without by screen displays by reducing information in order to reduce a storage memory while passing the linear PCM signal demodulated by a musical data reproducing part 2 through a time compressing part 3, a low-pass filter 4 and a musical signal compressing part 6 for thinning prescribed information and by producing the abstract list of musics of the plural disks D1 , D2 , D3 ,... in a memory circuit. |
