shithub: soundpipe

ref: a7639e57d9ba60b4eab83a0658816b15f7c7699d
dir: /h/butbr.h/

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typedef struct {
    SPFLOAT freq, bw;
    SPFLOAT lfreq, lbw;
    SPFLOAT a[7];
    SPFLOAT pidsr, tpidsr;
} sp_butbr;

int sp_butbr_create(sp_butbr **p);
int sp_butbr_destroy(sp_butbr **p);
int sp_butbr_init(sp_data *sp, sp_butbr *p);
int sp_butbr_compute(sp_data *sp, sp_butbr *p, SPFLOAT *in, SPFLOAT *out);