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#include <stdio.h>
#include "common.h"
#include "psycho_n1.h"
/* this is the null psychoacoustic model
All it does it copy some predefined values.
No actual modelling takes place */
/* a bunch of SNR values I sort of made up MFC 1 oct 99
Found by averaging the SNR values over a sound file
FIXME: Do a more rigourous investigation MFC Feb 2003 */
// From Castanets.wav
static FLOAT snrdef[32] = {
30, 17, 16, 10, 3, 12, 8, 2.5, 5, 5, 6, 6, 5, 6, 10, 6, -4,
-10, -21, -30, -42, -55, -68, -75, -75, -75, -75, -75, -91, -107, -110, -108
};
#ifdef TESTSNR
// Using TMBG song "I am not your broom" about 1min. Psy Model 2
static FLOAT snrdefa[32] = {
31, 17, 11, 9, 9, 7, 5, 3, 3, 3, 3, 3, 3, 1, -0, -2,
-5, -9,-15,-22,-32,-42,-54,-62,-63,-64,-66,-67,-83,-96,-98,-102
};
// Using Babylon5 "messages from earth: track 6" 15mins. Psy Model 2.
static FLOAT snrdefb[32] = {
30, 17, 11, 9, 8, 9, 6, 5, 5, 4, 4, 3, 2, -0, -2, -5,
-8,-13,-19,-27,-35,-46,-55,-64,-65,-66,-68,-69,-84,-97,-99,-104
};
// Using Babylon5 "messages from earth: track 6" 15mins. Psy Model 1
static FLOAT snrdefc[32] = {
32, 26, 22, 18, 16, 14, 12, 11, 10, 9, 9, 8, 6, 6, 4, 2,
0, -2, -7,-12,-18,-27,-35,-47,-53,-54,-56,-57,-57,-70, 0, 0
};
#endif
void psycho_n1(double ltmin[2][SBLIMIT], int stereo)
{
int i, k;
for (k = 0; k < stereo; k++)
for (i = 0; i < SBLIMIT; i++)
ltmin[k][i] = snrdef[i];
}
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