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2014-03-27add VC2012 project to compile static and dynamic lib, also fix some CQ
issues
2014-03-11Add xtract_midicent() convenience function to convert from frequency to MIDI ↵Jamie Bullock
cent
2014-03-07Add additional error code XTRACT_ARGUMENT_ERRORJamie Bullock
2014-02-17updated documentation for xtract_hpsSean Enderby
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
2013-07-08Remove spurious argv specification from xtract_smoothness() documentation. ↵Jamie Bullock
Fixes #27.
2013-06-18Increment feature count to correct valueJamie Bullock
2013-05-31Add wavelet-based pitch trackerJamie Bullock
2013-01-09implemented optimised FFT via the Accelerate framework. closes #5Jamie Bullock
2013-01-09switched from single to double precision througout. closes #9Jamie 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
2011-03-30- reimplemented xtract_spectral_variance() xtract_spectral_skewness() and ↵Jamie Bullock
xtract_spectral_kurtosis() using correct maths - removed xtract_spectral_average_deviation()
2010-02-03- fixed DC/Nyquist inclusion bug in xtract_spectrum() and refactored a bitJamie 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
2008-01-01- 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
2007-10-06Removed fftw_plan from xtraction functions. Created new init function ↵Jamie Bullock
xtract_init_fft() for creating plans, which have global scope. Updated examples to reflect the change. New configure option: --with-fft_optimisation (0 = FFTW_ESTIMATE, 1 = FFTW_MEASURE, 2 = FFTW_PATIENT).
2007-09-06Java bindings (with simple test) now working. Unified Python and Java ↵Jamie Bullock
bindings tests.
2007-08-20Minor mods and typos corrections that were lurking uncommittedJamie Bullock
2007-08-19Fixes for MSP example, and changed the fundamental estimators so that if ↵Jamie Bullock
they don't get a samplerate 44100 is assumed (I'm not sure if this is a good idea!).
2007-04-20Fixed autocorrelation_fft() it now gives comparable output to autocorrelation()Jamie Bullock
2007-03-20Ammended xtract_mfcc() documentationJamie Bullock
2007-03-19Further updated xtract_spectrum() to hopefully fix fft iteration bug and ↵Jamie Bullock
nyquist/DC inclusion. Added new boolean argument 'withDC' to select whether the DC component is required in the output
2007-02-12Various minor fixesJamie Bullock
2007-01-29Added namespacing to enumerations and defines. Made most macros private.Jamie Bullock
2007-01-21Finished the essentials of descriptors.cJamie Bullock
2007-01-11Fleshed out function descriptors.Jamie Bullock
2007-01-10Rationalised spectral data format. Added spectral_mean et alJamie Bullock
2007-01-09Added desc and p_desc fields to descriptor definitionsJamie Bullock
2006-12-22Added function descriptorsJamie Bullock
2006-12-21Added xtract_sharpness() Jamie Bullock
2006-12-21Added xtract_slope()Jamie Bullock
2006-12-21xtract_magnitude_spectrum() and xtract_peaks() share format of N/2 frequency ↵Jamie Bullock
values and N/2 magnitude coefficients. 'Fixed' xtract_loudness() so that N=1 can be used for specific loudness.
2006-12-20Added new features: sum, highest_value, crest and noisinessJamie Bullock
2006-12-15Numerous fixes and enhancements, see ChangeLog.Jamie Bullock
2006-12-12Numerous fixes, see ChangeLogJamie Bullock
2006-12-11Changes to xtract_inharmonicity - made parameters consistent with other Jamie Bullock
xtractors that use peak spectrum. Fixed memory alloc bug in pd example.
2006-12-09Implemented xtract_harmonicsJamie Bullock
2006-11-10Fixed Mac OS X crash by declaring xtract and xtract_help_strings as Jamie Bullock
extern
2006-10-24Various minor fixesJamie Bullock