\doxysection{agc.\+h}
\label{agc_8h_source}\index{include/sphinxbase/agc.h@{include/sphinxbase/agc.h}}
\textbf{ Go to the documentation of this file.}
\begin{DoxyCode}{0}
\DoxyCodeLine{00001\ \textcolor{comment}{/*\ -\/*-\/\ c-\/basic-\/offset:\ 4;\ indent-\/tabs-\/mode:\ nil\ -\/*-\/\ */}}
\DoxyCodeLine{00002\ \textcolor{comment}{/*\ ====================================================================}}
\DoxyCodeLine{00003\ \textcolor{comment}{\ *\ Copyright\ (c)\ 1999-\/2004\ Carnegie\ Mellon\ University.\ \ All\ rights}}
\DoxyCodeLine{00004\ \textcolor{comment}{\ *\ reserved.}}
\DoxyCodeLine{00005\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00006\ \textcolor{comment}{\ *\ Redistribution\ and\ use\ in\ source\ and\ binary\ forms,\ with\ or\ without}}
\DoxyCodeLine{00007\ \textcolor{comment}{\ *\ modification,\ are\ permitted\ provided\ that\ the\ following\ conditions}}
\DoxyCodeLine{00008\ \textcolor{comment}{\ *\ are\ met:}}
\DoxyCodeLine{00009\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00010\ \textcolor{comment}{\ *\ 1.\ Redistributions\ of\ source\ code\ must\ retain\ the\ above\ copyright}}
\DoxyCodeLine{00011\ \textcolor{comment}{\ *\ \ \ \ notice,\ this\ list\ of\ conditions\ and\ the\ following\ disclaimer.\ }}
\DoxyCodeLine{00012\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00013\ \textcolor{comment}{\ *\ 2.\ Redistributions\ in\ binary\ form\ must\ reproduce\ the\ above\ copyright}}
\DoxyCodeLine{00014\ \textcolor{comment}{\ *\ \ \ \ notice,\ this\ list\ of\ conditions\ and\ the\ following\ disclaimer\ in}}
\DoxyCodeLine{00015\ \textcolor{comment}{\ *\ \ \ \ the\ documentation\ and/or\ other\ materials\ provided\ with\ the}}
\DoxyCodeLine{00016\ \textcolor{comment}{\ *\ \ \ \ distribution.}}
\DoxyCodeLine{00017\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00018\ \textcolor{comment}{\ *\ This\ work\ was\ supported\ in\ part\ by\ funding\ from\ the\ Defense\ Advanced\ }}
\DoxyCodeLine{00019\ \textcolor{comment}{\ *\ Research\ Projects\ Agency\ and\ the\ National\ Science\ Foundation\ of\ the\ }}
\DoxyCodeLine{00020\ \textcolor{comment}{\ *\ United\ States\ of\ America,\ and\ the\ CMU\ Sphinx\ Speech\ Consortium.}}
\DoxyCodeLine{00021\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00022\ \textcolor{comment}{\ *\ THIS\ SOFTWARE\ IS\ PROVIDED\ BY\ CARNEGIE\ MELLON\ UNIVERSITY\ \`{}\`{}AS\ IS''\ AND\ }}
\DoxyCodeLine{00023\ \textcolor{comment}{\ *\ ANY\ EXPRESSED\ OR\ IMPLIED\ WARRANTIES,\ INCLUDING,\ BUT\ NOT\ LIMITED\ TO,\ }}
\DoxyCodeLine{00024\ \textcolor{comment}{\ *\ THE\ IMPLIED\ WARRANTIES\ OF\ MERCHANTABILITY\ AND\ FITNESS\ FOR\ A\ PARTICULAR}}
\DoxyCodeLine{00025\ \textcolor{comment}{\ *\ PURPOSE\ ARE\ DISCLAIMED.\ \ IN\ NO\ EVENT\ SHALL\ CARNEGIE\ MELLON\ UNIVERSITY}}
\DoxyCodeLine{00026\ \textcolor{comment}{\ *\ NOR\ ITS\ EMPLOYEES\ BE\ LIABLE\ FOR\ ANY\ DIRECT,\ INDIRECT,\ INCIDENTAL,}}
\DoxyCodeLine{00027\ \textcolor{comment}{\ *\ SPECIAL,\ EXEMPLARY,\ OR\ CONSEQUENTIAL\ DAMAGES\ (INCLUDING,\ BUT\ NOT\ }}
\DoxyCodeLine{00028\ \textcolor{comment}{\ *\ LIMITED\ TO,\ PROCUREMENT\ OF\ SUBSTITUTE\ GOODS\ OR\ SERVICES;\ LOSS\ OF\ USE,\ }}
\DoxyCodeLine{00029\ \textcolor{comment}{\ *\ DATA,\ OR\ PROFITS;\ OR\ BUSINESS\ INTERRUPTION)\ HOWEVER\ CAUSED\ AND\ ON\ ANY\ }}
\DoxyCodeLine{00030\ \textcolor{comment}{\ *\ THEORY\ OF\ LIABILITY,\ WHETHER\ IN\ CONTRACT,\ STRICT\ LIABILITY,\ OR\ TORT\ }}
\DoxyCodeLine{00031\ \textcolor{comment}{\ *\ (INCLUDING\ NEGLIGENCE\ OR\ OTHERWISE)\ ARISING\ IN\ ANY\ WAY\ OUT\ OF\ THE\ USE\ }}
\DoxyCodeLine{00032\ \textcolor{comment}{\ *\ OF\ THIS\ SOFTWARE,\ EVEN\ IF\ ADVISED\ OF\ THE\ POSSIBILITY\ OF\ SUCH\ DAMAGE.}}
\DoxyCodeLine{00033\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00034\ \textcolor{comment}{\ *\ ====================================================================}}
\DoxyCodeLine{00035\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00036\ \textcolor{comment}{\ */}}
\DoxyCodeLine{00037\ \textcolor{comment}{/*}}
\DoxyCodeLine{00038\ \textcolor{comment}{\ *\ agc.h\ -\/-\/\ Various\ forms\ of\ automatic\ gain\ control\ (AGC)}}
\DoxyCodeLine{00039\ \textcolor{comment}{\ *\ }}
\DoxyCodeLine{00040\ \textcolor{comment}{\ *\ **********************************************}}
\DoxyCodeLine{00041\ \textcolor{comment}{\ *\ CMU\ ARPA\ Speech\ Project}}
\DoxyCodeLine{00042\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00043\ \textcolor{comment}{\ *\ Copyright\ (c)\ 1999\ Carnegie\ Mellon\ University.}}
\DoxyCodeLine{00044\ \textcolor{comment}{\ *\ ALL\ RIGHTS\ RESERVED.}}
\DoxyCodeLine{00045\ \textcolor{comment}{\ *\ **********************************************}}
\DoxyCodeLine{00046\ \textcolor{comment}{\ *\ }}
\DoxyCodeLine{00047\ \textcolor{comment}{\ *\ HISTORY}}
\DoxyCodeLine{00048\ \textcolor{comment}{\ *\ \$Log\$}}
\DoxyCodeLine{00049\ \textcolor{comment}{\ *\ Revision\ 1.1\ \ 2006/04/05\ \ 20:27:30\ \ dhdfu}}
\DoxyCodeLine{00050\ \textcolor{comment}{\ *\ A\ Great\ Reorganzation\ of\ header\ files\ and\ executables}}
\DoxyCodeLine{00051\ \textcolor{comment}{\ *\ }}
\DoxyCodeLine{00052\ \textcolor{comment}{\ *\ Revision\ 1.8\ \ 2005/06/21\ 19:25:41\ \ arthchan2003}}
\DoxyCodeLine{00053\ \textcolor{comment}{\ *\ 1,\ Fixed\ doxygen\ documentation.\ 2,\ Added\ \$\ keyword.}}
\DoxyCodeLine{00054\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00055\ \textcolor{comment}{\ *\ Revision\ 1.4\ \ 2005/06/13\ 04:02:56\ \ archan}}
\DoxyCodeLine{00056\ \textcolor{comment}{\ *\ Fixed\ most\ doxygen-\/style\ documentation\ under\ libs3decoder.}}
\DoxyCodeLine{00057\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00058\ \textcolor{comment}{\ *\ Revision\ 1.3\ \ 2005/03/30\ 01:22:46\ \ archan}}
\DoxyCodeLine{00059\ \textcolor{comment}{\ *\ Fixed\ mistakes\ in\ last\ updates.\ Add}}
\DoxyCodeLine{00060\ \textcolor{comment}{\ *}}
\DoxyCodeLine{00061\ \textcolor{comment}{\ *\ }}
\DoxyCodeLine{00062\ \textcolor{comment}{\ *\ 28-\/Apr-\/1999\ \ M\ K\ Ravishankar\ (rkm@cs.cmu.edu)\ at\ Carnegie\ Mellon\ University}}
\DoxyCodeLine{00063\ \textcolor{comment}{\ *\ \ \ \ \ \ \ \ \ \ \ \ \ \ Copied\ from\ previous\ version.}}
\DoxyCodeLine{00064\ \textcolor{comment}{\ */}}
\DoxyCodeLine{00065\ }
\DoxyCodeLine{00066\ }
\DoxyCodeLine{00067\ \textcolor{preprocessor}{\#ifndef\ \_S3\_AGC\_H\_}}
\DoxyCodeLine{00068\ \textcolor{preprocessor}{\#define\ \_S3\_AGC\_H\_}}
\DoxyCodeLine{00069\ }
\DoxyCodeLine{00070\ \textcolor{comment}{/*\ Win32/WinCE\ DLL\ gunk\ */}}
\DoxyCodeLine{00071\ \textcolor{preprocessor}{\#include\ <sphinxbase/sphinxbase\_export.h>}}
\DoxyCodeLine{00072\ }
\DoxyCodeLine{00073\ \textcolor{preprocessor}{\#include\ <sphinxbase/prim\_type.h>}}
\DoxyCodeLine{00074\ \textcolor{preprocessor}{\#include\ <sphinxbase/fe.h>}}
\DoxyCodeLine{00075\ }
\DoxyCodeLine{00084\ \textcolor{preprocessor}{\#ifdef\ \_\_cplusplus}}
\DoxyCodeLine{00085\ \textcolor{keyword}{extern}\ \textcolor{stringliteral}{"{}C"{}}\ \{}
\DoxyCodeLine{00086\ \textcolor{preprocessor}{\#endif}}
\DoxyCodeLine{00087\ \textcolor{preprocessor}{\#if\ 0}}
\DoxyCodeLine{00088\ \textcolor{comment}{/*\ Fool\ Emacs.\ */}}
\DoxyCodeLine{00089\ \}}
\DoxyCodeLine{00090\ \textcolor{preprocessor}{\#endif}}
\DoxyCodeLine{00091\ }
\DoxyCodeLine{00095\ \textcolor{keyword}{typedef}\ \textcolor{keyword}{enum}\ agc\_type\_e\ \{}
\DoxyCodeLine{00096\ \ \ \ \ AGC\_NONE\ =\ 0,}
\DoxyCodeLine{00097\ \ \ \ \ AGC\_MAX,}
\DoxyCodeLine{00098\ \ \ \ \ AGC\_EMAX,}
\DoxyCodeLine{00099\ \ \ \ \ AGC\_NOISE}
\DoxyCodeLine{00100\ \}\ agc\_type\_t;}
\DoxyCodeLine{00101\ }
\DoxyCodeLine{00103\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00104\ agc\_type\_t\ agc\_type\_from\_str(\textcolor{keyword}{const}\ \textcolor{keywordtype}{char}\ *str);}
\DoxyCodeLine{00105\ }
\DoxyCodeLine{00107\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00108\ \textcolor{keyword}{extern}\ \textcolor{keyword}{const}\ \textcolor{keywordtype}{char}\ *agc\_type\_str[];}
\DoxyCodeLine{00109\ }
\DoxyCodeLine{00113\ \textcolor{keyword}{typedef}\ \textcolor{keyword}{struct\ }agc\_s\ \{}
\DoxyCodeLine{00114\ \ \ \ \ mfcc\_t\ max;\ \ \ \ \ \ }
\DoxyCodeLine{00115\ \ \ \ \ mfcc\_t\ obs\_max;\ \ }
\DoxyCodeLine{00116\ \ \ \ \ int32\ obs\_frame;\ }
\DoxyCodeLine{00117\ \ \ \ \ int32\ obs\_utt;\ \ \ }
\DoxyCodeLine{00118\ \ \ \ \ mfcc\_t\ obs\_max\_sum;}
\DoxyCodeLine{00119\ \ \ \ \ mfcc\_t\ noise\_thresh;\ }
\DoxyCodeLine{00120\ \}\ agc\_t;}
\DoxyCodeLine{00121\ }
\DoxyCodeLine{00125\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00126\ agc\_t\ *agc\_init(\textcolor{keywordtype}{void});}
\DoxyCodeLine{00127\ }
\DoxyCodeLine{00131\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00132\ \textcolor{keywordtype}{void}\ agc\_free(agc\_t\ *agc);}
\DoxyCodeLine{00133\ }
\DoxyCodeLine{00140\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00141\ \textcolor{keywordtype}{void}\ agc\_max(agc\_t\ *agc,\ \ \ \ }
\DoxyCodeLine{00142\ \ \ \ \ \ \ \ \ \ \ \ \ \ mfcc\_t\ **mfc,\ \ \ \ \ \ }
\DoxyCodeLine{00143\ \ \ \ \ \ \ \ \ \ \ \ \ \ int32\ n\_frame\ \ \ \ \ \ }
\DoxyCodeLine{00144\ \ \ \ \ );}
\DoxyCodeLine{00145\ }
\DoxyCodeLine{00151\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00152\ \textcolor{keywordtype}{void}\ agc\_emax(agc\_t\ *agc,\ \ }
\DoxyCodeLine{00153\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ mfcc\_t\ **mfc,\ \ \ \ \ }
\DoxyCodeLine{00154\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ int32\ n\_frame\ \ \ \ \ }
\DoxyCodeLine{00155\ \ \ \ \ );}
\DoxyCodeLine{00156\ }
\DoxyCodeLine{00160\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00161\ \textcolor{keywordtype}{void}\ agc\_emax\_update(agc\_t\ *agc\ }
\DoxyCodeLine{00162\ \ \ \ \ );}
\DoxyCodeLine{00163\ }
\DoxyCodeLine{00167\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00168\ float32\ agc\_emax\_get(agc\_t\ *agc);}
\DoxyCodeLine{00169\ }
\DoxyCodeLine{00173\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00174\ \textcolor{keywordtype}{void}\ agc\_emax\_set(agc\_t\ *agc,\ float32\ m);}
\DoxyCodeLine{00175\ }
\DoxyCodeLine{00179\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00180\ \textcolor{keywordtype}{void}\ agc\_noise(agc\_t\ *agc,\ \ \ \ \ \ \ \ }
\DoxyCodeLine{00181\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ mfcc\_t\ **mfc,\ \ \ \ }
\DoxyCodeLine{00182\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ int32\ n\_frame\ \ \ \ }
\DoxyCodeLine{00183\ \ \ \ \ );}
\DoxyCodeLine{00184\ }
\DoxyCodeLine{00188\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00189\ float32\ agc\_get\_threshold(agc\_t\ *agc);}
\DoxyCodeLine{00190\ }
\DoxyCodeLine{00194\ SPHINXBASE\_EXPORT}
\DoxyCodeLine{00195\ \textcolor{keywordtype}{void}\ agc\_set\_threshold(agc\_t\ *agc,\ float32\ threshold);}
\DoxyCodeLine{00196\ }
\DoxyCodeLine{00197\ }
\DoxyCodeLine{00198\ \textcolor{preprocessor}{\#ifdef\ \_\_cplusplus}}
\DoxyCodeLine{00199\ \}}
\DoxyCodeLine{00200\ \textcolor{preprocessor}{\#endif}}
\DoxyCodeLine{00201\ }
\DoxyCodeLine{00202\ \textcolor{preprocessor}{\#endif}}

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