/* Could be set to 3 to save an additional bit at the cost of little quality */
#define TNS_Q_BITS 4
+/* Coefficient resolution in short windows */
+#define TNS_Q_BITS_SHORT 3
+
/* TNS will only be used if the LPC gain is within these margins */
-#define TNS_GAIN_THRESHOLD_LOW 1.395f
-#define TNS_GAIN_THRESHOLD_HIGH 11.19f
+#define TNS_GAIN_THRESHOLD_LOW 1.437f
+#define TNS_GAIN_THRESHOLD_HIGH 21.19f
/* If the energy ratio between the low SFBs vs the high SFBs is not between
* those two values, use 2 filters instead */
#define TNS_E_RATIO_HIGH 1.23
/* Do not use TNS if the psy band spread is below this value */
-#define TNS_SPREAD_THRESHOLD 37.081512f
+#define TNS_SPREAD_THRESHOLD 0.5f
void ff_aac_encode_tns_info(AACEncContext *s, SingleChannelElement *sce);
void ff_aac_apply_tns(AACEncContext *s, SingleChannelElement *sce);