Philip’s Dynamic Noise Limiter

When there is quiet passages, a tape noise becomes disturb. This noise can be reduces using Philips’ Dynamic Noise Limiter circuit. The principle operation of this circuit is improve the signal-to-noise ratio during the quite periods by decreasing the gain for the higher frequencies. However, on the higher frequency components of the signal, the effect is not significant because the […]

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Low-Pass and High-Pass RC Filter Frequency Calculator

This is a simple Low-Pass and High-Pass RC Filter Frequency Calculator. This calculator is used to calculate the corner frequency of low pass and high pass filter. To change from low pass to high pass, just switch the position of the resistor and capacitor. The corner frequency does not change because the calculator assumes a low source impedance. Here is […]

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