Tracking notch filters find use in harmonic-distortion analyzers; they also can remove heterodyne noise from ham-radio systems. A conventional tracking switched-capacitor notch filter relies on a ...

It’s been a while since the last installment in our Know Audio series, in which we investigated distortion as it applies to ...

The second-order multipurpose filter described here can perform as a low-pass, bandpass, high-pass, or notch filter at audio frequencies. What makes this filter unique is that all of its ...

The circuit was designed with the combination of high pass filter and low pass filter to create a notch filter circuit. High Pass Filter – an electronic circuit that allows the passage of high ...

ST-Ericsson has found a way to get more sound from phone loudspeakers without melting them. These speakers tend to be tiny – in this case 11x15mm. It turns out that as power is increased, overheating ...