What Is Bias?

- Jun 23, 2018-

Bias is a measure of the bias magnetic field of the recording head. Since the magnetic force of the recording head is not linearly related to the residual magnetic flux of the tape, appropriate magnetic bias is added to make the magnetic head work in a linear relationship with the residual magnetic flux. In the area, there are two methods of DC bias and AC bias. Modern tape recorders generally use super audio signals with better effect as AC bias.



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