bessel_init       545 libavcodec/opusenc_psy.c             bessel_init(&s->bfilter_hi[ch][i], 1.0f, 19.0f, 100.0f, 1);
bessel_init       546 libavcodec/opusenc_psy.c             bessel_init(&s->bfilter_lo[ch][i], 1.0f, 20.0f, 100.0f, 0);