ANORDNING FOR INSPELNING AV TONFREKVENSSIGNALER PA MAGNETMEDIA

摘要

The level of the high frequency bias signal provided by a bias oscillator 3 is reduced by a control unit 6 when the high frequency content of the analog input signal being recorded increases above a threshold level, allowing high levels of high frequencies to be recorded. The equalization and gain of the recording amplifier 1 are also simultaneously adjusted to maintain an overall flat record-playback frequency response and constant recording sensitivity.