[0c18603] | 1 | aubio |
---|
| 2 | ===== |
---|
[f719589] | 3 | |
---|
[0c18603] | 4 | aubio is a collection of tools for music and audio analysis. |
---|
| 5 | |
---|
| 6 | This package integrates the aubio library with [NumPy] to provide a set of |
---|
| 7 | efficient tools to process and analyse audio signals, including: |
---|
| 8 | |
---|
| 9 | - read audio from any media file, including videos and remote streams |
---|
| 10 | - high quality phase vocoder, spectral filterbanks, and linear filters |
---|
| 11 | - Mel-Frequency Cepstrum Coefficients and standard spectral descriptors |
---|
| 12 | - detection of note attacks (onset) |
---|
| 13 | - pitch tracking (fundamental frequency estimation) |
---|
| 14 | - beat detection and tempo tracking |
---|
| 15 | |
---|
| 16 | aubio works with both Python 2 and Python 3. |
---|
| 17 | |
---|
| 18 | Built with |
---|
| 19 | ---------- |
---|
| 20 | |
---|
| 21 | The core of aubio is written in C for portability and speed. In addition to |
---|
| 22 | [NumPy], aubio can be optionally built to use one or more of the following |
---|
| 23 | libraries: |
---|
| 24 | |
---|
| 25 | - media file reading: |
---|
| 26 | |
---|
| 27 | - [ffmpeg](https://ffmpeg.org) / [avcodec](https://libav.org) to decode and |
---|
| 28 | read audio from almost any format, |
---|
| 29 | - [libsndfile](http://www.mega-nerd.com/libsndfile/) to read audio from |
---|
| 30 | uncompressed sound files, |
---|
| 31 | - [libsamplerate](http://www.mega-nerd.com/SRC/) to re-sample audio signals |
---|
| 32 | - [CoreAudio](https://developer.apple.com/reference/coreaudio) to read all |
---|
| 33 | media files supported natively on macOS, iOS, and tvOS. |
---|
| 34 | |
---|
| 35 | - hardware acceleration: |
---|
| 36 | |
---|
| 37 | - [Atlas](http://math-atlas.sourceforge.net/) and |
---|
| 38 | [Blas](https://en.wikipedia.org/wiki/Basic_Linear_Algebra_Subprograms), |
---|
| 39 | for accelerated vector and matrix computations, |
---|
| 40 | - [fftw3](http://fftw.org), to compute fast Fourier Transforms of any size. |
---|
| 41 | - [Accelerate](https://developer.apple.com/reference/accelerate) for |
---|
| 42 | hardware accelerated FFT and matrix computations on macOs and iOS, |
---|
| 43 | - [Intel IPP](https://software.intel.com/en-us/intel-ipp), accelerated |
---|
| 44 | vector computation and FFT implementation, |
---|
| 45 | |
---|
| 46 | Documentation |
---|
| 47 | ------------- |
---|
| 48 | |
---|
| 49 | - [module documentation][doc_python] |
---|
| 50 | - [installation][doc_python_install] |
---|
| 51 | - [aubio manual][manual] |
---|
| 52 | - [aubio homepage][homepage] |
---|
| 53 | |
---|
| 54 | [manual]: https://aubio.org/manual/latest/ |
---|
| 55 | [doc_python]: https://aubio.org/manual/latest/python.html |
---|
| 56 | [doc_python_install]: https://aubio.org/manual/latest/python_module.html |
---|
| 57 | [homepage]: https://aubio.org |
---|
| 58 | [NumPy]: https://www.numpy.org |
---|
[f719589] | 59 | |
---|
[7f82f81] | 60 | Finding some inspiration |
---|
| 61 | ------------------------ |
---|
| 62 | |
---|
| 63 | Some examples are available in the `python/demos` directory. These scripts are |
---|
| 64 | small programs written in python and using python-aubio. |
---|
| 65 | |
---|
| 66 | For instance, `demo_source.py` reads a media file. |
---|
| 67 | |
---|
| 68 | $ ./python/demos/demo_source.py /path/to/sound/sample.wav |
---|
| 69 | |
---|
| 70 | and `demo_timestretch_online.py` stretches the original file into a new one: |
---|
| 71 | |
---|
| 72 | $ ./python/demo/demo_timestretch_online.py loop.wav stretched_loop.wav 0.92` |
---|
| 73 | |
---|
| 74 | Note: you might need to install additional modules to run some of the demos. |
---|
| 75 | Some demos use [matplotlib](http://matplotlib.org/) to draw plots, others use |
---|
| 76 | [PySoundCard](https://github.com/bastibe/PySoundCard) to play and record |
---|
| 77 | sounds. |
---|