From 22f1fce330059ef8a383cf327a023d6a9da5ad3e Mon Sep 17 00:00:00 2001 From: "Matthias P. Braendli" Date: Mon, 15 Feb 2016 02:44:20 +0100 Subject: Include toolame-dab as library --- libtoolame-dab/psycho_n1.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 libtoolame-dab/psycho_n1.c (limited to 'libtoolame-dab/psycho_n1.c') diff --git a/libtoolame-dab/psycho_n1.c b/libtoolame-dab/psycho_n1.c new file mode 100644 index 0000000..9134023 --- /dev/null +++ b/libtoolame-dab/psycho_n1.c @@ -0,0 +1,46 @@ +#include +#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]; +} -- cgit v1.2.3