roarfilt(1) System Manager's Manual: roarfilt roarfilt(1)
NAME
roarfilt - RoarAudio sound server audio filter client
SYNOPSIS
roarfilt [OPTIONS]...
DESCRIPTION
This filters the audio data before they are send to the soundcard.
GENERAL OPTIONS
NOTE: This list is incomplete! In addition to this list this program provides compatible options for esdfilt. You can just replace the
"esd" in the name with "roar" or use symlinks. This options are for compatibly only and should not used in new programs.
--help Print some help text.
AUDIO OPTIONS
--rate RATE, -R RATE
Set server sample rate.
--bits BITS, -B BITS
Set server bits.
--chans CHANNELS, -C CHANNELS
Set server channels.
NETWORK OPTIONS
--server SERVER
The server to connect to.
OLD ROARFILT OPTIONS
--half Half the volume.
--double
Double the volume.
--amp n, --mul n
Amplify volume by n.
--div n
Divide volume by n.
--log n
Does a simple 'gamma correction'. This is done by:
sample = 2^(bits-1) * log(1 + (n - 1)*sample/2^(bits-1)) / log(n).
--lowpass freq
lowpass filter
FILTER OPTIONS
--filter name
This adds a new filter of name name.
--ffreq freq
This sets a frequency for the filter.
--fmul mult
This sets a multiplier for the filter.
--fdiv div
This sets a divider for the filter.
--fn N This sets the filter's N value.
--flimit limit
This sets the filter's limit value.
--fmode mode
set filter mode parameter This sets the filter mode. Symbolic values are currently not supported.
--fq Q This sets the filter quality.
ENVIRONMENT VARIABLES
Bellow only the basic environment varibales are listend. For a complete list see libroar(7).
HOME The users home directory.
ROAR_SERVER
The address of the listening server. This may be in form of host:port for TCP/IP connections and /path/to/sock for UNIX Domain Sock-
ets or any other supported format. See roartips(7) for a full list. This is the same as the --server option.
BUGS
There are a lot of bugs...
SEE ALSO
roarctl(1), roarvorbis(1), roarfish(1), roartestclients(1), roartips(7), libroar(7), RoarAudio(7).
HISTORY
For history information see RoarAudio(7).
RoarAudio July 2008 roarfilt(1)