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synthio: shift 19 was too much for a note with amplitude 1

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This commit is contained in:
Jeff Epler 2023-05-30 09:26:14 -05:00
parent 3151656f4b
commit 8a85deb1e2
1 changed files with 1 additions and 1 deletions
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shared-module/synthio/Biquad.c
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@ -94,7 +94,7 @@ mp_obj_t common_hal_synthio_new_bpf(mp_float_t w0, mp_float_t Q) {
return namedtuple_make_new((const mp_obj_type_t *)&synthio_biquad_type_obj, MP_ARRAY_SIZE(out_args), 0, out_args);
}
#define BIQUAD_SHIFT (19)
#define BIQUAD_SHIFT (15)
STATIC int32_t biquad_scale_arg_obj(mp_obj_t arg) {
return (int32_t)MICROPY_FLOAT_C_FUN(round)(MICROPY_FLOAT_C_FUN(ldexp)(mp_obj_get_float(arg), BIQUAD_SHIFT));
}