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Glame Butterworth X-over Filter
An Audacity plug-in that includes an X-over filter...
plugin Audacity plug-in Audacity Audacity compressor Audacity equalizer
Butterworth LP & HP Filters
Frequency modulations while maintaining a low CPU usage...
3-rd order Butterworth low-pass
A good and simple low-pass with one knob...
3-rd order Butterworth high-pass
Good simple high-pass filter with one knob...
6-th order Butterworth low-pass
An effective audio low pass filter...
General Rowfilter
A general third order digital filter. Processes only in the horizontal...
filter VirtualDub VirtualDub Filter horizontal digital order