/* ==================================================================== * Copyright (c) 1999-2001 Carnegie Mellon University. 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 work was supported in part by funding from the Defense Advanced * Research Projects Agency and the National Science Foundation of the * United States of America, and the CMU Sphinx Speech Consortium. * * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND * ANY EXPRESSED 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 CARNEGIE MELLON UNIVERSITY * NOR ITS EMPLOYEES 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. * * ==================================================================== * */ /* * mulaw.c -- u-Law audio routines. * * HISTORY * * $Log: mulaw_base.c,v $ * Revision 1.5 2001/12/11 00:24:48 lenzo * Acknowledgement in License. * * Revision 1.4 2001/12/07 17:30:02 lenzo * Clean up and remove extra lines. * * Revision 1.3 2001/12/07 05:09:31 lenzo * License.xsxc * * Revision 1.2 2001/12/07 04:27:35 lenzo * License cleanup. Remove conditions on the names. Rationale: These * conditions don't belong in the license itself, but in other fora that * offer protection for recognizeable names such as "Carnegie Mellon * University" and "Sphinx." These changes also reduce interoperability * issues with other licenses such as the Mozilla Public License and the * GPL. This update changes the top-level license files and removes the * old license conditions from each of the files that contained it. * All files in this collection fall under the copyright of the top-level * LICENSE file. * * Revision 1.1 2000/12/12 22:55:55 lenzo * Separate out a/d lib. * * Revision 1.2 2000/12/05 01:45:12 lenzo * Restructuring, hear rationalization, warning removal, ANSIfy * * Revision 1.1.1.1 2000/01/28 22:08:52 lenzo * Initial import of sphinx2 * * * * 22-Jul-97 M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon University * Created from Sunil's version. */ #include "s2types.h" #include "ad.h" #include "mulaw.h" void ad_mu2li (int16 *out, unsigned char *in, int32 n_samp) { int32 i; for (i = 0; i < n_samp; i++) out[i] = muLaw[in[i]]; }