DC filter Plugin
====================================================

The plugin in dcfilter subdirectory is an external DC filter used for
micfil sound card, as there is limitation for micfil hardware dc remover.
You can use this DC filter plugin by defining a pcm device such as:

pcm.dcfilter{
        type dcFilter
        cutoff 10
        slave "hw:micfilaudio,0"
}

Write the above in your ~/.asoundrc or /etc/asound.conf.

