Changes in src/musicutils.h [ff9c62a:7b183ce]

File:

• src/musicutils.h (modified) (1 diff)

src/musicutils.h

@@ -87 +87 @@
 smpl_t aubio_freqtobin (smpl_t freq, smpl_t samplerate, smpl_t fftsize);
 
-/** convert frequency (Hz) to mel
-
-  \param freq input frequency, in Hz
-
-  \return output mel
-
-  Converts a scalar from the frequency domain to the mel scale using Slaney
-  Auditory Toolbox's implementation:
-
-  If \f$ f < 1000 \f$, \f$ m = 3 f / 200 \f$.
-
-  If \f$ f >= 1000 \f$, \f$ m = 1000 + 27 \frac{{ln}(f) - ln(1000))}
-  {{ln}(6400) - ln(1000)}
-  \f$
-
-  See also
-  --------
-
-  aubio_meltohz(), aubio_hztomel_htk().
-
-*/
-smpl_t aubio_hztomel (smpl_t freq);
-
-/** 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/
-
-*/
-smpl_t aubio_meltohz (smpl_t mel);
-
-/** convert frequency (Hz) to mel
-
-  \param freq input frequency, in Hz
-
-  \return output mel
-
-  Converts a scalar from the frequency domain to the mel scale, using the
-  equation defined by O'Shaughnessy, as implemented in the HTK speech
-  recognition toolkit:
-
-  \f$ m = 1127 + ln(1 + \frac{f}{700}) \f$
-
-  See also
-  --------
-
-  aubio_meltohz_htk(), aubio_hztomel().
-
-  References
-  ----------
-
-  Douglas O'Shaughnessy (1987). *Speech communication: human and machine*.
-  Addison-Wesley. p. 150. ISBN 978-0-201-16520-3.
-
-  HTK Speech Recognition Toolkit: http://htk.eng.cam.ac.uk/
-
- */
-smpl_t aubio_hztomel_htk (smpl_t freq);
-
-/** 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 the
-  equation defined by O'Shaughnessy, as implemented in the HTK speech
-  recognition toolkit:
-
-  \f$ f = 700 * {e}^\left(\frac{f}{1127} - 1\right) \f$
-
-  See also
-  --------
-
-  aubio_hztomel_htk(), aubio_meltohz().
-
-*/
-smpl_t aubio_meltohz_htk (smpl_t mel);
-
 /** convert frequency (Hz) to midi value (0-128) */
 smpl_t aubio_freqtomidi (smpl_t freq);