Function bliss_audio_aubio_sys::aubio_meltohz

source · 
pub unsafe extern "C" fn aubio_meltohz(mel: smpl_t) -> smpl_t
Expand description

convert mel to frequency (Hz)

\param mel input mel

\return output frequency, in Hz

Converts a scalar from the mel scale to the frequency domain using Slaney Auditory Toolbox’s implementation:

If \f$ f < 1000 \f$, \f$ f = 200 m/3 \f$.

If \f$ f \geq 1000 \f$, \f$ f = 1000 + \left(\frac{6400}{1000}\right) ^{\frac{m - 1000}{27}} \f$

See also

aubio_hztomel(), aubio_meltohz_htk().

References

Malcolm Slaney, Auditory Toolbox Version 2, Technical Report #1998-010 https://engineering.purdue.edu/~malcolm/interval/1998-010/