Title:
CASSETTE TAPE FOR RESTING LEFT BRAIN
Document Type and Number:
Japanese Patent JPS6425351
Kind Code:
A
Abstract:
PURPOSE:To eliminate unnaturalness at a music interval and to naturally switch a performance music by changing a frequency at respective music intervals for an identification tone signal. CONSTITUTION:A tone signal of 30kHz-40kHz is continuously sound-reproduced to a performance music at a music interval, and the tone signal is AM- modulated with a natural tone such as the tone of wind, the tone of a murmuring of a stream and so forth. The sound-recording level of the tone signal is sound-recorded at the same level for the whole time of the music interval by a sound recording level lower than the average sound recording level of the performance music by >=10db, and the tone signal modulation ratio of the natural tone is gradually adjusted deeply at the beginning of the music interval and gradually adjusted shallowly at the end of the music interval. The tone signal is AM-modulated with the identification tone signal of 2-10Hz, the frequency is changed by respective music intervals, the tone signal of the music interval is detected at the time of reproducing, the natural tone is reproduced, the frequency is detected and the music interval is specified. Thus, the performance music is naturally switched and the music can be comfortably listened to.
Inventors:
TAKASHIMA HIROO
Application Number:
JP18176487A
Publication Date:
January 27, 1989
Filing Date:
July 20, 1987
Export Citation:
Assignee:
TAKASHIMA HIROO
International Classes:
G11B20/02; (IPC1-7): G11B20/02
Attorney, Agent or Firm:
Toyosu Yasuhiro