Madmom

-----------------

---------------------------------------

New features:

* `TempoDetector` can operate on live audio signals (292)
* Added chord evaluation (309)
* Bar tracking functionality (316)
* Added `quantize_notes` function (327)
* Added global key evaluation (336)
* Added key recognition feature and program (345, 381)

Bug fixes:

* Fix `TransitionModel` number of states when last state is unreachable (287)
* Fix double beat detections in `BeatTrackingProcessor` (298)
* Fix ffmpeg unicode filename handling (305)
* Fix STFT zero padding (319)
* Fix memory leak when accessing signal frames (322)
* Quantization of events does not alter them (327)

API relevant changes:

* `BufferProcessor` uses `data` instead of `buffer` for data storage (292)
* `DBNBeatTrackingProcessor` expects 1D inputs (299)
* Moved downbeat and pattern tracking to `features.downbeats` (316)
* Write/load functions moved to `io` module (346)
* Write functions do not return any data (346)
* Evaluation classes expect annotations/detections, cannot handle files (346)
* New MIDI module (io.midi) replacing (utils.midi) based on mido (46)

Other changes:

* Viterbi decoding of `HMM` raises a warning if no valid path is found (279)
* Add option to include Nyquist frequency in `STFT` (280)
* Use `pyfftw` to compute FFT (363)
* Python 3.7 support (374)
* Use pytest instead of nose to run tests (385)
* Removed obsolete code (385)

-----------------------------------------

This is a maintenance release.

* NumPy boolean subtract fix (296)

---------------------------------------

New features:

* Streaming mode allows framewise processing of live audio input (185)
* Exponential linear unit (ELU) activation function (232)
* `DBNBeatTracker` can operate on live audio signals (238)
* `OnsetDetectorLL` can operate on live audio signals (256)

Bug fixes:

* Fix downbeat evaluation failure with a single annotation / detection (216)
* Fix tempo handling of multi-track MIDI files (219)
* Fix error loading unicode filenames (223)
* Fix ffmpeg unicode filename handling (236)
* Fix smoothing for `peak_picking` (247)
* Fix combining onsets/notes (255)

API relevant changes:

* `NeuralNetwork` expect 2D inputs; activation can be computed stepwise (244)
* Reorder `GRUCell` parameters, to be consistent with all other layers (243)
* Rename `GRULayer` parameters, to be consistent with all other layers (243)

Other changes:

* SPL and RMS can be computed on `Signal` and `FramedSignal` (208)
* `num_threads` is passed to `ParallelProcessor` in single mode (217)
* Use `install_requires` in `setup.py` to specify dependencies (226)
* Use new Cython build system to build extensions (227)
* Allow initialisation of previous/hidden states in RNNs (243)
* Forward path of `HMM` can be computed stepwise (244)

-----------------------------------------

This is a maintenance release.

* `RNNDownBeatProcessor` returns only beat and downbeat activations (197)
* Update programs to reflect MIREX 2016 submissions (198)

---------------------------------------

New features:

* Downbeat tracking based on Recurrent Neural Network (RNN) and Dynamic
Bayesian Network (DBN) (130)
* Convolutional Neural Networks (CNN) and CNN onset detection (133)
* Linear-Chain Conditional Random Field (CRF) implementation (144)
* Deep Neural Network (DNN) based chroma vector extraction (148)
* CRF chord recognition using DNN chroma vectors (148)
* CNN chord recognition using CRF decoding (152)
* Initial Windows support (Python 2.7 only, no pip packages yet) (157)
* Gated Recurrent Unit (GRU) network layer (167)

Bug fixes:

* Fix downbeat output bug (128)
* MIDI file creation bug (166)

API relevant changes:

* Refactored the `ml.rnn` to `ml.nn` and converted the models to pickles (110)
* Reordered the dimensions of comb_filters to time, freq, tau (135)
* `write_notes` uses `delimiter` instead of `sep` to separate columns (155)
* `LSTMLayer` takes `Gate` as arguments, all layers are callable (161)
* Replaced `online` parameter of `FramedSignalProcessor` by `origin` (169)

Other changes:

* Added classes for onset/note/beat detection with RNNs to `features.*` (118)
* Add examples to docstrings of classes (119)
* Converted `madmom.modules` into a Python package (125)
* `match_files` can handle inexact matches (137)
* Updated beat tracking models to MIREX 2015 ones (146)
* Tempo and time signature can be set for created MIDI files (166)