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2014-02-17xtract_hps, made it more in the style of the library and octave error ↵Sean Enderby
correction bit
2014-02-17quick fix to xtract_irregularity_j and a sort of working xtract_hpsSean Enderby
2014-02-12Include float.h on platforms that don't have DBL_MAX defined in limits.hJamie Bullock
2014-02-11Make xtract_lowest_value() return XTRACT_NO_RESULT if all values in the ↵Jamie Bullock
input data are below or equal to threshold value. Fixes #46 If XTRACT_NO_RESULT is returned, *result will be set to DBL_MAX
2013-07-08Optimise xtract_smoothness() by removing call to malloc(). Also fix bug in ↵Jamie Bullock
xtract_smoothness() where *result was uninitialised but used in calculation.
2013-07-04Use log10 (double precision) instead of log10f. Fixes bug in spectral flatnessJamie Bullock
2013-07-01Remove spurious print statementJamie Bullock
2013-06-19Offset peak interpolation by one spectral bin. Fixes #20Jamie Bullock
2013-06-19Uncomment free(), fixing memory leakJamie Bullock
2013-06-19Don't read past end of spectral data arrayJamie Bullock
2013-06-19Initialise ooura struct with right amount of memory for ooura FFT. Fixes #11Jamie Bullock
2013-06-19Print which FFT implementation is being used at startupJamie Bullock
2013-06-18Copy out input values for Ooura so the in-place transform doesn't overwrite ↵Jamie Bullock
*data
2013-06-18Update definition with const to reflect prototypeJamie Bullock
2013-06-18Comment out unused variableJamie Bullock
2013-06-18Update function prototype to use const for passed in sample bufferJamie Bullock
2013-06-02Pass block size to xtract_init_vdsp_data() instead of block size / 2. Fixes ↵Jamie Bullock
bug with erroneous values in second half of spectrum when using vDSP FFT
2013-05-31Reinstate path fixJamie Bullock
2013-05-31Remove obsolete reference to xtract_scalar_private.hJamie Bullock
2013-05-31Add wavelet-based pitch trackerJamie Bullock
2013-04-24Provide relative include path for libxtract.h for compatibility with ↵Jamie Bullock
non-autotools builds
2013-01-10fixed Linux bugsJamie Bullock
2013-01-09implemented optimised FFT via the Accelerate framework. closes #5Jamie Bullock
2013-01-09add option to explicitly specify Ooura library at configure timeJamie Bullock
2013-01-09fixed bug in xtract_dct where data wasn't being copied to result vectorJamie Bullock
2013-01-09run FFT in place on the data vectorJamie Bullock
2013-01-09switched from single to double precision througout. closes #9Jamie Bullock
2013-01-07removed references to FFTWJamie Bullock
2013-01-07changed license from GPL to MIT. closes #6Jamie Bullock
2013-01-07added Ooura implementation to repositoryJamie Bullock
2012-03-29- fixed build-time bug. in some cases average_deviation was commented out ↵Jamie Bullock
instead of spectral_average_deviation
2011-03-31- fixed xtract_spread() -- now just calls xtract_spectral_variance()Jamie Bullock
2011-03-30- reimplemented xtract_spectral_variance() xtract_spectral_skewness() and ↵Jamie Bullock
xtract_spectral_kurtosis() using correct maths - removed xtract_spectral_average_deviation()
2011-03-30- fixed typos in *result initialisation potentially fixing horrible bugJamie Bullock
2010-02-03- fixed DC/Nyquist inclusion bug in xtract_spectrum() and refactored a bitJamie Bullock
2008-11-11- Committed patch by Chris Cannam to avoid reading past the end of an array ↵Jamie Bullock
in peak detection routine in xtract_peak_spectrum()
2008-09-12- Committing ancient change left on HD. Relates to FFTW fft typeJamie Bullock
2008-05-04Fixed bug in peak interpolation algorithm in xtract_peak_spectrum()Jamie Bullock
2008-03-26- Fixed build fail if --enable-fft not specifiedJamie Bullock
- Fixed doxygen build so that it includes libxtract.h - Doxygen tweaks
2008-02-16- Added to pd example the ability to differentiate between differentJamie Bullock
argv types (XTRACT_FLOAT, XTRACT_INT) and pass the correct data type to the xtract[]() function - Added xtract_flatness_db() details to descriptors.c - Fixes to tonality and xtract_subbands descriptors - Added Pd examples for 'subband mean' and tonality calculated using subbands
2008-02-15Added new extraction function: xtract_subbands()Jamie Bullock
2008-02-15- Fixed bugs in xtract_flatness(), or at least added necessaryJamie Bullock
documentation and error checking to avoid problems - Added xtract_is_denormal() helper function and XTRACT_DENORMAL_FOUND return code - Replaced all instances of log, sqrt, exp etc. with respective floating point counterparts (logf etc.) - Added check for architecture endianness to configure script - Bug fix to PD example, now no longer crashes if no arguments are given - Minor documentation updates
2008-01-02- Minor fix in xtract_lpc... or at least think it's a fixJamie Bullock
2008-01-02- Re-factoring in xtract_spectrum and fixed normalisation bugJamie Bullock
- Fixed bug in xtract_lnorm
2008-01-01- Improvements to SWIG bindings generation scriptJamie Bullock
- Fixed omission in xtract_bark_coefficients that was causing the output to be complete b/s! This fixed bark_coeffs and loudness feature which depends on it - Changes to descriptor API: added is_delta and id. id corresponds to value in xtract_features_ enum and is useful for programmatic conversions between id and name string.
2007-12-29- PD example brought in line with new delta features and subframe functionJamie Bullock
- subframe-test.pd added - fix to a_blockswap~.pd
2007-12-28- Added new helper functions: xtract_windowed() and ↵Jamie Bullock
xtract_features_from_subframes() - Added windowing functions (window.c)
2007-12-27Added l-norm/spectral fluxJamie Bullock
2007-12-27- Added extra argument to xtract_spectrum to give the option of normalising ↵Jamie Bullock
the magnitude/power coeffificients - Removed duplicate code block (argc assignment) from descriptors.c - Added some extra documentation to libxtract.h
2007-12-24- Fixes to descriptors.c where no break statement was given for certain ↵Jamie Bullock
cases is switch conditionals - Added LPC and LPCC extraction functions. LPC implements Durbin method as described in Rabiner and Juang and implemented in Dr. Dobbs 1994 edition by Jutta Degener