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-.\"
-.\" Copyright (c) 1999 Hellmuth Michaelis. All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" $FreeBSD$
-.\"
-.\"	last edit-date: [Mon Mar 15 16:17:23 1999]
-.\"
-.Dd March 15, 1999
-.Dt G711CONV 1
-.Os
-.Sh NAME
-.Nm g711conv
-.Nd conversions according to G.711
-.Sh SYNOPSIS
-.Nm
-.Op Fl a
-.Op Fl u
-.Op Fl P
-.Op Fl A
-.Op Fl R
-.Sh DESCRIPTION
-.Nm g711conv
-is part of the isdn4bsd package and is used to convert between the A-Law and
-u-law formats as specified in ITU G.711. It is based on a freely available
-and freely usable reference implementation done by Sun Microsystems, Inc.
-.Pp
-The following options are available:
-.Bl -tag -width Ds
-.It Fl a
-Convert A-law to u-law
-.It Fl u
-Convert u-law to A-law
-.It Fl r
-Reverse bits before conversion
-.It Fl R
-Reverse bits after conversion
-.It Fl P
-Print the resulting conversion tables (as C-source) to stdout instead of
-doing the actual conversion.
-.El
-.Pp
-
-.Sh STANDARDS
-A-Law and u-Law conversions are specified in ITU Recommendation G.711.
-.Pp
-The reference implementation done by Sun Microsystems, Inc. is available
-from http://www.itu.int/itudoc/itu-t/rec/g/g700-799/refimpl.txt
-.Pp
-
-.Sh EXAMPLES
-The command:
-.Bd -literal -offset indent
-g711conv -P -a
-.Ed
-.Pp
-prints out the A-law to u-law conversion table as C-source to stdout.
-.Pp
-The command:
-.Bd -literal -offset indent
-cat max_headroom.ul | g711conv -u -R > /dev/i4btel0
-.Ed
-.Pp
-converts the u-law coded voice of Max Headroom to A-law, reverses the
-bits of the result and moves that to an active isdn4bsd telephone connection.
-.Pp
-
-.Sh AUTHORS
-The
-.Nm
-utility and this manpage were written by
-.An Hellmuth Michaelis Aq hm@kts.org
-based on the G.711 conversion reference code written by Sun Microsystems, 
-Inc. and code contributed to isdn4bsd by
-.An Stefan Bethke .
-