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Diffstat (limited to 'codecs/gsm/src/short_term.c')
-rw-r--r--codecs/gsm/src/short_term.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/codecs/gsm/src/short_term.c b/codecs/gsm/src/short_term.c
index 4172d322c..d22d276ba 100644
--- a/codecs/gsm/src/short_term.c
+++ b/codecs/gsm/src/short_term.c
@@ -55,21 +55,21 @@ static void Decoding_of_the_coded_Log_Area_Ratios P2((LARc,LARpp),
*/
#undef STEP
-#define STEP( B, MIC, INVA ) \
+#define STEP( B_TIMES_TWO, MIC, INVA ) \
temp1 = GSM_ADD( *LARc++, MIC ) << 10; \
- temp1 = GSM_SUB( temp1, B << 1 ); \
+ temp1 = GSM_SUB( temp1, B_TIMES_TWO ); \
temp1 = (word)GSM_MULT_R( INVA, temp1 ); \
*LARpp++ = GSM_ADD( temp1, temp1 );
STEP( 0, -32, 13107 );
STEP( 0, -32, 13107 );
- STEP( 2048, -16, 13107 );
- STEP( -2560, -16, 13107 );
+ STEP( 4096, -16, 13107 );
+ STEP( -5120, -16, 13107 );
- STEP( 94, -8, 19223 );
- STEP( -1792, -8, 17476 );
- STEP( -341, -4, 31454 );
- STEP( -1144, -4, 29708 );
+ STEP( 188, -8, 19223 );
+ STEP( -3584, -8, 17476 );
+ STEP( -682, -4, 31454 );
+ STEP( -2288, -4, 29708 );
/* NOTE: the addition of *MIC is used to restore
* the sign of *LARc.