apower(1)

NAME
apower - Measure signal power of stdin

SYNOPSIS
apower [-bs blocksize] [-e encoding] [-ccitt]

DESCRIPTION

apower measures the power of a signal on stdin, printing the power level on stdout every blocksize. arecord(1) | apower is a useful command pipeline.

OPTIONS

[-bs]

    Specifies the blocksize. Defaults to 8000 (one second).

[-ccitt]

    Calculates the signal power relative to the official CCITT digital milliwatt. Otherwise calculates the power relative to a sine wave 3.16 dB below digital clipping level.

[-e]

    Specifies the encoding of the data. Valid arguments given by giving a random value to -e.

ENVIRONMENT

none

BUG
Probably.

If you encounter a reproducible bug, please submit a problem report to (af-bugs@crl.dec.com).

SEE ALSO
atone(1) arecord(1)

COPYRIGHT
Copyright 1993-1994, Digital Equipment Corporation.
See AF(1) for a full statement of rights and permissions.

AUTHORS
Digital Cambridge Research Lab