Nagetfilter - Townshend Computer Tools DAT-Link User Manual

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NAME
nagetfilter – get the impulse response of the DAT-Link filters
SYNOPSIS
nagetfilter –P|-R [ –u host:unit ]
DESCRIPTION
nagetfilter is used to retrieve the impulse response of the last filter used by the NetAudio server for
playback or recording. The sampling rate of the impulse response is written to standard output fol
l owed by the samples of the (symmetric) response. This response can be used to compute the fre-
quency response of the DAT-Link's sample rate converter.
S ince nagetfilter always returns the last playback or record filter generated by the server, it is important
to be careful that the server is not used by another user before nagetfilter is used, otherwise you wil
g et their filter. Typically this program will be used immediately after naplay (1) or narecord (1).
If the naplay(1) or narecord(1) filter.resp configuration option is used, the impulse response return b
n agetfilter will be the total response of the DAT-Link, including it's implementation of the requested
filter.
OPTIONS
–P Return the playback filter.
–R Return the recording filter. Either –P or –R must be specified.
–u host:unit
Use the NetAudio server on host that is connected to the DAT-Link with unit-number unit.
Otherwise, use the value of the
then use unit 0 on the local host.
ENVIRONMENT
NetAudio server to use of the form host:nn , where host is the name of the host
AUDIO_DEVICE
where the server is running and nn is the unit number of the DAT-Link to use. If no
s et, unit 0 on the local host is used is used.
SEE ALSO
netaudiod(8), narecord(1), naplay(1),
DAT-Link User's Manual.
N etAudio Reference
environment variable. If it is not set either
AUDIO_DEVICE
Last change: 1992/01/28

NAGETFILTER(1)

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