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2007-10-09 Dan Stowell
* version 0.5.1
* Fixed bug in xtract_init_mfcc() which accidentally missed filling in the very top filter frequency value
2007-10-06 Jamie Bullock <jamie@postlude.co.uk>
* version 0.5.0
* Removed fftw_plan creation from inner loop of functions that use fft
* Added new init function xtract_init_fft() for initialisation of
fft_plan out-of-place. The actual plans have global scope, and are
freed by the library destructor.
* Updated Max/MSP and PD examples too reflect the above change
* Made the fft optimistation level a compile-time option through
--with-fft-optimisation flag (0 = lowest, 2 = highest).
* Minor fixes.
2007-10-04 Dan Stowell
* version 0.4.9
* Fixed and tidied MFCC functions
2007-09-04 Jamie Bullock <jamie@postlude.co.uk>
* version 0.4.8
* Added cursory SWIG Python wrapper generator
2007-04-20 Jamie Bullock <jamie@postlude.co.uk>
* version 0.4.7
* Added MSP example
2007-04-20 Jamie Bullock <jamie@postlude.co.uk>
* version 0.4.5
* Fixed autocorrelation_fft()
* Added MAINTAINERCLEAN files to Makefile.am
2007-03-14 Jamie Bullock <jamie@postlude.co.uk>
* version 0.4.4
* Fixed return value macros for functions if fftw not used
* Fixed bug in xtract_spectrum() FFTW_R2HC not interpreted correctly
2007-01-29 Jamie Bullock <jamie@postlude.co.uk>
* version 0.4.0
* Added namespacing for macros and enumerations
* Made most macros private
* Rationalised formats for data (*data and argv) to create consistency
between functions
* Added spectral_mean() and friends
* Added feature descriptors (see libxtract.h/descriptors.c
2006-12-15 Jamie Bullock <jamie@postlude.co.uk>
* version 0.3.4
* Changed xtract_lowest_match(), to xtract_lowest(). It just returns the
lowest non-zero component in the input array, between two bounds
* qualified int *data, int N, and void *argv as const, thus insuring
that they won't be modified by the called function.
* added facilities for some functions to operate on copies of input
data instead of modifying it. This will need to be optimised at some
point maybe.
* Added arguments to spectral flatness to allow for control over input
band and pre-scaling
* Fixed confusing xtract_init_mfcc() parameter order
* Added new xtractor xtract_failsafe_f0
2006-12-12 Jamie Bullock <jamie@postlude.co.uk>
* version 0.3.3
* Fixed errors in skewnes, kurtosis, irregularity_k, irregularity_j,
tristimulus_1, tristimulus_2, and tristimulus_3.
* Tested the above
* Changed rolloff so output is in Hz. This means that a second
argument (samplerate) needs to be passed in as argv[1]
2006-12-11 Jamie Bullock <jamie@postlude.co.uk>
* version 0.3.2
* changed xtract_inharmonicity so that it takes frequencies AND
amplitudes of peaks from *data rather than via *argv. This is
consistent with xtract_centroid and others, and it means the data can
come directly from xtract_peaks
* Improvements to pd example (fixed memory allocation bugs)
2006-12-10 Jamie Bullock <jamie@postlude.co.uk>
* version 0.3.1
* Fixed xtract_init_mfcc (array entries zeroed out if not set)
2006-11-10 Jamie Bullock <jamie@postlude.co.uk>
* version 0.3.0
* Corrected typos in scalar.c
* Added -Wall to CFLAGS and corrected problems relating to warnings
* Added xtract_harmonics and corresponding documentation
2006-11-10 Jamie Bullock <jamie@postlude.co.uk>
* version 0.2.2
* Fixed 'bus error' crash on Mac OS X by adding 'extern' declarations
to xtract and xtract_help_strings
2006-10-24 Jamie Bullock <jamie@postlude.co.uk>
* version 0.2.1
* Fixed _xtract and _xtract_help_strings memory alloc bug
* Added new macro
_
2006-10-18 Jamie Bullock <jamie@postlude.co.uk>
* version 0.2.0
* added PD help files
* added simple help system
2006-10-12 Jamie Bullock <jamie@postlude.co.uk>
* version 0.1.2
* improved xtract_f0
* changed versioning scheme
2006-10-09 Jamie Bullock <jamie@postlude.co.uk>
* Released version 0.11
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