| 摘要 |
<p>PURPOSE:To enable to switch the tape run speed at reproducing automatically into the set speed at recording, by detecting the control signal simultaneously recorded at audio recording, and switching the tape run speed with this detected output. CONSTITUTION:The output signal of a pilot signal generating section 2 controlled with a recording button 1 is fed to a recording head 4 and recorded on a track different from the track to record normal audio signal on a magnetic tape 5, reproduced at a reproducing head 6 at reproducing and input to a frequency detection section 8. To a tape speed detection section 9, the output signal of the frequency detection section 8 and the tape run speed information at reproducing being the output signal of a tape speed set section 10 are input, the output signal of the tape speed set section 10 is input to a capstan drive motor control section 11, allowing to control the rotating speed of a capstan drive motor 12.</p> |
