FreeCalypso > hg > gsm-codec-lib
view libtwamr/ex_ctrl.h @ 474:285381a001fc
new program gsmfr-dlcap-sync
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 15 May 2024 06:20:59 +0000 |
parents | 3f27ca24c620 |
children |
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/* ******************************************************************************** * * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001 * R99 Version 3.3.0 * REL-4 Version 4.1.0 * ******************************************************************************** * * File : ex_ctrl.h * Purpose : Excitation Control module in background noise * ******************************************************************************** */ #ifndef ex_ctrl_h #define ex_ctrl_h "$Id $" /* ******************************************************************************** * INCLUDE FILES ******************************************************************************** */ #include "typedef.h" #include "cnst.h" /* ******************************************************************************** * LOCAL VARIABLES AND TABLES ******************************************************************************** */ #define L_ENERGYHIST 60 /* ******************************************************************************** * DEFINITION OF DATA TYPES ******************************************************************************** */ /* ******************************************************************************** * DECLARATION OF PROTOTYPES ******************************************************************************** */ /* ************************************************************************** * * Function : Ex_ctrl * Purpose : Charaterice synthesis speech and detect background noise * Returns : background noise decision; 0 = bgn, 1 = no bgn * ************************************************************************** */ Word16 Ex_ctrl (Word16 excitation[], /*i/o: Current subframe excitation */ Word16 excEnergy, /* i : Exc. Energy, sqrt(totEx*totEx)*/ Word16 exEnergyHist[], /* i : History of subframe energies */ Word16 voicedHangover, /* i : # of fr. after last voiced fr.*/ Word16 prevBFI, /* i : Set i previous BFI */ Word16 carefulFlag /* i : Restrict dymamic in scaling */ ); #endif