Exemplos de sp_butlp_create em C++ (Cpp)

Exemplo n.º 1

Arquivo: AKLowPassButterworthFilterDSPKernel.hpp Projeto: carabina/AudioKit

    void init(int channelCount, double inSampleRate) {
        channels = channelCount;

        sampleRate = float(inSampleRate);

        sp_create(&sp);
        sp_butlp_create(&butlp);
        sp_butlp_init(sp, butlp);
        butlp->freq = 1000;
    }

Exemplo n.º 2

Arquivo: t_butlp.c Projeto: OpenDAWN/Soundpipe

int t_butlp(sp_test *tst, sp_data *sp, const char *hash) 
{
    uint32_t n;
    int fail = 0;

    SPFLOAT in = 0;
    SPFLOAT out = 0;
    
    udata ud;
    ud.counter = 0;
    sp_noise_create(&ud.ns);
    sp_butlp_create(&ud.butlp);
    sp_noise_init(sp, ud.ns);
    sp_butlp_init(sp, ud.butlp);

    for(n = 0; n < tst->size; n++) {
        in = 0;
        out = 0;
        if(ud.counter == 0) {
            ud.butlp->freq= 500 + sp_rand(sp) % 4000;
        }
        sp_noise_compute(sp, ud.ns, NULL, &in);
        sp_butlp_compute(sp, ud.butlp, &in, &out); 
        ud.counter = (ud.counter + 1) % 5000;
        sp_test_add_sample(tst, out);
    }

    if(sp_test_compare(tst, hash) == SP_NOT_OK) {
        printf("Generated hash %s does not match reference hash %s\n", 
                tst->md5string, hash);
        fail = 1;
    }
    
    sp_noise_destroy(&ud.ns);
    sp_butlp_destroy(&ud.butlp);
     
    if(fail) return SP_NOT_OK;
    else return SP_OK;
}