This circuit uses a switched capacitor filter IC from National Semiconductor to filter signals with frequencies higher than the 3KHz needed for voice audio. The schematic includes an audio amplifier ...
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 ...
This invention relates to an audio mixing circuit for use in audio mixing consoles (audio mixers) or the like. FIG. 1 shows a block diagram of one exemplary arrangement of audio mixing consoles using ...
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