* Fixed librosa.show_versions to match package dependencies.
* Fixed a bug in librosa.effects.split when applied to multichannel data.
* Removed test data from main repository and reduced the git attic.
* Accept pre-constructed audioread objects in librosa.load.
* Accelerate librosa.magphase.
* Nearly full support for multi-channel processing.
* Option to disable unicode characters in display functions.
* Significantly expanded the library of example audio clips.
* The default padding mode for most functions (including STFT) is now
zero-padding.
* librosa.load and librosa.stream can now operate directly on open
soundfile objects.
* librosa.display.specshow now uses centered coordinate grids.
* librosa.iirt now exposes API control over resampling modes.
* Maximum frequency is now correctly inferred as Nyquist in onset strength
calculation.
* librosa.effects.deemphasis no longer modifies the input signal in-place.
* librosa.util.frame now correctly works for arbitrary memory layouts and
numbers of axes.
* Corrected a normalization error in inverse CQT.
* ibrosa.cqt now supports arbitrary hop lengths.
* Added a run-time check for minimally supported matplotlib versions.
* Enhanced continuous integration testing for oldest and newest environments.
* librosa.effects.deemphasis, inverse operation of
librosa.effects.preemphasis.
* librosa.display.waveshow, adaptively visualize waveforms by amplitude
envelope when zoomed out, or raw sample values when zoomed in.
- Add patch remove-contextlib2.patch:
* No longer require contextlib2.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-librosa?expand=0&rev=20
- Update to version 0.7.2
+ New Features
* added liftering support to MFCC inversion. *Ayoub Malek*
* added `pathlib` support to `core.load`. *Stef van der Struijk*
* added "mu-law" compression and expansion (companding). *Brian McFee*
+ Bug fixes
* fixed errors in dynamic time warping with `NaN` inputs and detection
of invalid warping paths. *Frank Zalkow, Brian McFee*
* fixed frame-length normalization in spectrogram-based RMS energy
calculation. *Shunsuke Hidaka*
* fixed the length of signals produced by `core.tone`. *Brian McFee*
+ Documentation
* removed math formatting from documentation. *Vincent Lostanlen*
* corrected documentation for DTW. *Eric Semeniuc*
* corrected typos in time-frequency reassignment spectrogram
documentation. *Scott Seyfarth*
* removed `dct_type=None` as an option in MFCC documentation. *Brian McFee*
+ Other changes
* expanded normalization modes in Mel basis construction. *Brian McFee*
OBS-URL: https://build.opensuse.org/request/show/768828
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-librosa?expand=0&rev=14
- Update to version 0.7.0
+ New features
* `librosa.core.stream`: Stream generator to process long audio files into smaller pieces. *Brian McFee*
* `librosa.core.load`: Replaced the default audio decoder with `pysoundfile`, and only use `audioread` as backup. *Brian McFee*
* `librosa.core.griffinlim`: Phase retrieval from magnitude spectrograms using the (accelerated) Griffin-Lim method. *Brian McFee*
* `librosa.feature.inverse`: New module for feature inversion, based on the Griffin-Lim phase retrieval algorithm. Includes `mel_to_audio` and `mfcc_to_audio`. *Brian McFee*
* `librosa.core.lpc`: Linear prediction coefficients (LPC). *Adam Weiss*
* `librosa.sequence.rqa`: Recurrence Quantification Analysis (RQA) for sequence alignment. *Brian McFee*
* `librosa.beat.plp`: Predominant local pulse (PLP) for variable-tempo beat tracking. *Brian McFee*
* `librosa.feature.fourier_tempogram`: Fourier Tempogram for representing rhythm in the frequency domain. *Brian McFee*
* `librosa.core.pcen` Per-channel energy normalization (PCEN) now allows logarithmic range compression at the limit power->0. *Vincent Lostanlen*
* `librosa.effects.pitch_shift` supports custom resampling modes. *Taewoon Kim*
* `librosa.core.cqt` and `librosa.core.icqt` Forward and inverse constant-Q transform now support custom resampling modes. *Brian McFee*
* `librosa.segment.path_enhance`: Near-diagonal path enhancement for recurrence, self- or cross-similarity matrices. *Brian McFee*
* `librosa.segment.recurrence_matrix` now supports a keyword argument, `self=False`. If set to `True`, the recurrence matrix includes self-loops. *Brian McFee*
* `librosa.core.piptrack` now supports a keyword argument, `ref=None`, allowing users to override the reference thresholding behavior for determining which bins correspond to pitches. *Brian McFee*
* `librosa.segment.cross_similarity`: Cross-similarity function for comparing two feature sequences. *Rachel Bittner, Brian McFee*
* `librosa.onset.onset_strength_multi` now supports a user-specified reference spectrum via the `ref` keyword argument. *Brian McFee*
* `librosa.core.resample` now supports `mode='polyphase'`. *Brian McFee*
* `librosa.onset.onset_strength_multi`: Setting `aggregate=False` disables the aggregation of onset strengths across frequency bins. *Brian McFee*
+ Bug fixes
* `librosa.effects.pitch_shift` now preserves length. *Vincent Lostanlen*
* `librosa.core.pcen` Dynamic range compression in PCEN is more numerically stable for small values of the exponent. *Vincent Lostanlen*
* `librosa.core.ifgram` Instantaneous frequency spectrogram now correctly estimates center frequencies when using windows other than `hann`. *Brian McFee*
* `librosa.sequence.dtw` Fixed a bug in dynamic time warping when `subseq=True`. *Viktor Andreevitch Morozov*
* `librosa.core.pcen` now initializes its autoregressive filtering in the steady state, not with silence. *Jan Schlüter, Brian McFee*
* `librosa.segment.recurrence_matrix`: `width` parameter now cannot exceed data length. *Brian McFee*
* Filter bank constructors `mel`, `chroma`, `constant_q`, and `cq_to_chroma` are now type-stable. *Vincent Lostanlen, Brian McFee*
* `librosa.core.icqt` Inverse constant-Q transform has been completely rewritten and is more numerically stable. *Brian McFee*
+ Removed features (deprecated in v0.6)
* Discrete cosine transform. We recommend using `scipy.fftpack.dct`
* The `delta` function no longer support the `trim` keyword argument.
* Root mean square error (`rmse`) has been renamed to `rms`.
* `iirt` now uses `sos` mode by default.
+ Documentation
* Improved the documentation of PCEN. *Vincent Lostanlen*
* Improved installation documentation. *Darío Hereñú*
* Improved code style for plot generation. *Alex Metsai*
* Improved the documentation of spectral features. *Brian McFee*
* Improved the documentation of MFCC. *Brian McFee*
* Removed a redundant link in the `util` documentation. *Keunwoo Choi*
* Improved the docstring of `recurrence_matrix`. *Brian McFee*
* Improved the docstring of `load`. *Andy Sarroff*
+ Other changes
* The `output` module is now deprecated, and will be removed in version 0.8.
* More informative exception handling. *Jack Mason*
* `librosa.core.resample()` now supports `mode='fft'`, equivalent to the previous `scipy` mode. *Brian McFee*
* More efficient length-aware ISTFT and ICQT. *Vincent Lostanlen*
* Nine librosa functions now store jit-compiled, numba-accelerated caches across sessions. *Brian McFee*
* `librosa.core.load` no longer relies on `realpath()`. *Brian McFee*
* All spectral feature extractors now expose all STFT parameters. *Brian McFee*
* Refactored `librosa.cache`. *Brian McFee*
* Thanks to `np.fft.rfft`, functions `stft`, `istft`, `ifgram`, and `fmt` are faster and have a reduced memory footprint. *Brian McFee*
OBS-URL: https://build.opensuse.org/request/show/718644
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-librosa?expand=0&rev=7
