資源簡介
Goertzel算法，當(dāng)時查找資料時在本論壇發(fā)現(xiàn)的，現(xiàn)分享出來
代碼片段和文件信息
#define?SAMPLING_RATE???????8000
#define?MAX_BINS????????????8
#define?GOERTZEL_N??????????92
int?????????sample_count;
double??????q1[?MAX_BINS?];
double??????q2[?MAX_BINS?];
double??????r[?MAX_BINS?];
/*
?*?coef?=?2.0?*?cos（?（2.0?*?PI?*?k）?/?（float）GOERTZEL_N））?;
?*?Where?k?=?（int）?（0.5?+?（（float）GOERTZEL_N?*?target_freq）?/?SAMPLING_RATE））;
?*
?*?More?simply:?coef?=?2.0?*?cos（?（2.0?*?PI?*?target_freq）?/?SAMPLING_RATE?）;
?*/
double??????freqs[?MAX_BINS]?=
{
??697
??770
??852
??941
??1209
??1336
??1477
??1633
};
double??????coefs[?MAX_BINS?]?;
/*----------------------------------------------------------------------------
?*??calc_coeffs
?*----------------------------------------------------------------------------
?*?This?is?where?we?calculate?t評論
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