Function aubio_sys::aubio_db_spl[][src]

pub unsafe extern "C" fn aubio_db_spl(v: *const fvec_t) -> smpl_t
Expand description

compute sound pressure level (SPL) in dB

This quantity is often wrongly called ‘loudness’.

This gives ten times the log10 of the average of the square amplitudes.

\param v vector to compute dB SPL from

\return level of v in dB SPL