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other algorithm

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Kizarm 2023-12-10 15:12:47 +01:00
parent b02468867a
commit a5511076aa
1 changed files with 3 additions and 2 deletions
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5
main.cpp
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@ -16,9 +16,10 @@ static constexpr int OFS = 20;
static CFFT fft (ORDER); static CFFT fft (ORDER);
static vector<double> mono; static vector<double> mono;
static bool sign = false; static bool odd = false;
void cputs (const char * s) { void cputs (const char * s) {
odd = ! odd;
const complex plus (0.0, 256.0), minus (0.0, -256.0); const complex plus (0.0, 256.0), minus (0.0, -256.0);
complex data [TAPS]; complex data [TAPS];
memset (&data,0, TAPS * sizeof(complex)); memset (&data,0, TAPS * sizeof(complex));
@ -27,12 +28,12 @@ void cputs (const char * s) {
const char c = s [n]; const char c = s [n];
if (c == '\0') break; if (c == '\0') break;
if (c == '#' ) { if (c == '#' ) {
const bool sign = (n & 1) xor odd;
// Střídání fáze 0/180 dost potlačí rozmazání spektra. // Střídání fáze 0/180 dost potlačí rozmazání spektra.
const complex fill = sign ? plus : minus; const complex fill = sign ? plus : minus;
const int k = n + OFS; const int k = n + OFS;
data[k] = fill; data[k] = fill;
data[TAPS - k] = fill; data[TAPS - k] = fill;
sign = ! sign;
} }
putchar(c); putchar(c);
n += 1; n += 1;