| 摘要 |
PURPOSE:To make a voice and an operation timing of a robot coincide with each other irrespective of an elongation of a magnetic tape for storing the voice, by recording a timing pulse of the outside of an audible band for instructing an operation start together with a sound signal corresponding to various operation modes. CONSTITUTION:An output (e) from a timing pulse code generating circuit 16 sends out a high frequency signal from a band pass filter 18 to an amplifier only at the time of an on-level. To a cassette tape of a cassette deck 21, a sound signal from an audio cassette deck 1, and a high frequency signal of an on-time portion in the timing pulse code generating circuit 16 are supported and recorded. A band pass filter 25 has the same band (frequency band) as the band pass filter 18 of the time of recording, and a rectifying circuit 26 rectifies a signal which has passed through the band pass filter 25. On the other hand, as for a low pass filter 27, only a frequency (sound signal) of an audible range passes through, and the sound signal which has passed through said filter is amplified by an amplifier 3, and sounds a loudspeaker 4. |
