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first attempt at T420 speaker compensation

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This commit is contained in:
Connor Olding 2015-05-06 11:10:20 -07:00
parent 1fbefa9eab
commit 9054360ded
2 changed files with 73 additions and 1 deletions
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2
Makefile
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@ -5,7 +5,7 @@ FULLNAME = $(DISTNAME)-$(VERSION)
BIN ?= ./bin
VST_SDK_DIR ?= .
BOTH = eq eq_const noise tube
BOTH = eq eq_const eq_const_T420 noise tube
LADSPA = $(BOTH)
VST = $(BOTH) delay_test

72
crap/eq_const_T420.h Normal file
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@ -0,0 +1,72 @@
#include <string.h>
#define ID (0x0DEFACED+420)
#define LABEL "crap_eq_const_T420"
#define NAME "crap T420 Speaker Compensation"
#define AUTHOR "Connor Olding"
#define COPYRIGHT "MIT"
#define PARAMETERS 0
#define BLOCK_SIZE 256
#include "util.h"
#define BANDS 12
typedef struct {
biquad filters[2][BANDS];
} personal;
static void
process_double(personal *data,
double *in_L, double *in_R,
double *out_L, double *out_R,
unsigned long count)
#include "process_biquads.h"
static void
process(personal *data,
float *in_L, float *in_R,
float *out_L, float *out_R,
ulong count)
#include "process_biquads.h"
INNER void
construct(personal *data)
{}
INNER void
destruct(personal *data)
{}
INNER void
resume(personal *data)
{
biquad *filters = data->filters[0];
for (int i = 0; i < BANDS; i++)
biquad_init(&filters[i]);
memcpy(data->filters[1], filters, BANDS*sizeof(biquad));
}
INNER void
pause(personal *data)
{}
INNER void
adjust(personal *data, ulong fs)
{
biquad *filters = data->filters[0];
// TODO: reduce ~3dB peaks at 1680, 2200
// TODO: reduce small peak at 600, 3780, 10600
filters[ 0] = biquad_gen(FILT_PEAKING, 150., 12., 1.50, fs);
filters[ 1] = biquad_gen(FILT_PEAKING, 640., 7.0, 0.80, fs);
filters[ 2] = biquad_gen(FILT_PEAKING, 1220, -12., 0.70, fs);
filters[ 3] = biquad_gen(FILT_PEAKING, 1670, 9.0, 0.18, fs);
filters[ 4] = biquad_gen(FILT_PEAKING, 2270, 9.0, 0.20, fs);
filters[ 5] = biquad_gen(FILT_PEAKING, 2470, -7.0, 0.16, fs);
filters[ 6] = biquad_gen(FILT_PEAKING, 3200, -0.1, 0.25, fs);
filters[ 7] = biquad_gen(FILT_PEAKING, 6200, -3.5, 0.25, fs);
filters[ 8] = biquad_gen(FILT_PEAKING, 6000, -9.0, 4.00, fs);
filters[ 9] = biquad_gen(FILT_PEAKING, 11560, 6.0, 0.12, fs);
filters[10] = biquad_gen(FILT_HIGHSHELF, 11000, 5.0, 0.50, fs);
filters[11] = biquad_gen(FILT_HIGHPASS, 120, 0.0, 1.00, fs);
}