From 16fbd046449e8a5235a91b80c2bbe8b043cf775e Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Mon, 1 Apr 2013 21:49:36 +0000 Subject: extend range of low pass --- spectrogram.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/spectrogram.c b/spectrogram.c index 7e645e2..7062a96 100644 --- a/spectrogram.c +++ b/spectrogram.c @@ -48,7 +48,7 @@ SDL_Rect sp_left, sp_right; /* spectrogram */ SDL_Rect dl_lo, dl_mi, dl_hi; /* disco light */ /* Disco Light Frequencies - * LOW 100-800 Hz + * LOW 50-800 Hz * MID 500-2000 Hz * HI 1500-5000 Hz */ @@ -167,7 +167,7 @@ draw(double *left, double *right, int p, int step) if (discolight) { av = pow(left[x] + right[x], 2.0); - if (x >= 100 / step && x <= 800 / step) + if (x >= 50 / step && x <= 800 / step) lo += av; if (x >= 500 / step && x <= 2000 / step) mi += av; @@ -193,7 +193,7 @@ draw(double *left, double *right, int p, int step) /* XXX */ if (discolight) { - lo = sqrt(lo / (700 / step)); + lo = sqrt(lo / (750 / step)); if (lo > p) lo = p; mi = sqrt(mi / (1500 / step)); -- cgit v1.2.3