Audio Filters Circuits Projects (7)

Browse through a total of 7 audio filters.

noise filter diagram

Audio Noise Filter Circuit

P. Marian - 07/09/2010

This audio noise filter circuit is a bandpass filter for audio frequency band. It filters unwanted signals that [...]
fsk filter

FSK Filter Circuit

P. Marian - 06/30/2010

FSK or Frequency-Shift Keying is a form of frequency modulation in which the modulating signal shifts the output [...]
4 order filter circuit schematic

TL081 4 Order Filter Circuit

Received by Email - 01/02/2010

Filters with high orders are designed usually with 2 or more cascaded sections. This order 4 filter need [...]
dx filter circuit schematic

DX Audio Filter Circuit

Received by Email - 12/11/2009

Most universal radio receivers have a very wide bandwidth that is not particulary for radio amateurs. The better [...]
ripple filter circuit schematic

50Hz Ripple Filter Circuit

Received by Email - 12/09/2009

The ripple filter circuit is specially deisgned to filter out 50 Hz ripple signals from audio lines. A [...]
subsonic audio filter circuit schematic

Subsonic Audio Filter Circuit

Received by Email - 10/22/2009

A subsonic filter is mostly used in low frequency technology. Most often, the very low frequencies create distorsions [...]
subwoofer filter circuit schematic

Subwoofer Filter Circuit

Received by Email - 09/17/2009

This subwoofer active filter circuit is a 24 dB octave filter with a Bessel character and cutoff frequency [...]
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