ref: 8d29795e2d574b228deb4a55b3a03e8e29b00263
parent: c27eaa4d006f419481783aab5565f59c164b74d1
author: knik <knik>
date: Wed Nov 27 12:20:34 EST 2002
updated noise threshold
--- a/libfaac/psychkni.c
+++ b/libfaac/psychkni.c
@@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
- * $Id: psychkni.c,v 1.3 2002/11/23 17:33:28 knik Exp $
+ * $Id: psychkni.c,v 1.4 2002/11/27 17:20:34 knik Exp $
*/
#include <stdio.h>
#include <stdlib.h>
@@ -79,37 +79,29 @@
int lastband;
int offset;
psydata_t *psydata = psyInfo->data;
- const double globalthr = 70;
- double tmp;
- double thr;
+ const double globalthr = 140;
/* Long window */
- offset = 1;
+ offset = 0;
for (b = 0; b < num_cb_long; b++)
{- tmp = (double)(offset + cb_width_long[b]) / offset;
+ offset += cb_width_long[b];
- thr = log(tmp) * globalthr;
-
psyInfo->maskEn[b] = 1.0;
- psyInfo->maskThr[b] = 1.0 / thr;
- offset += cb_width_long[b];
+ psyInfo->maskThr[b] = offset / globalthr;
}
/* Short windows */
- offset = 1;
+ offset = 0;
for (j = 0; j < 8; j++)
{for (b = 0; b < num_cb_short; b++)
{- tmp = (double)(offset + cb_width_short[b]) / offset;
+ offset += cb_width_short[b];
- thr = log(tmp) * globalthr;
-
psyInfo->maskEnS[j][b] = 1.0;
- psyInfo->maskThrS[j][b] = 1.0 / thr;
- offset += cb_width_short[b];
+ psyInfo->maskThrS[j][b] = offset / globalthr;
}
}