Yaafe is an audio features extraction toolbox.
- Easy to use
- The user can easily declare the features to extract and their parameters in a text file. Features can be extracted in a batch mode, writing CSV or H5 files. The user can also extract features with Python or Matlab.
- Yaafe automatically identifies common intermediate representations (spectrum, envelope, autocorrelation, …) and computes them only once. Extraction is processed block per block so that arbitrarily long files can be processed, and memory occupation is low.
If you wonder about the Yaafe acronym, it’s just Yet Another Audio Feature Extractor.
Yaafe‘s source code is released under the terms of the GNU LGPLv3 License. Yaafe source code compiles on Linux and MacOsX platforms.
Download current release: yaafe-v0.64.tgz.
View all releases: Sourceforge project’s website
1. Installing Yaafe
1.1. Getting Yaafe
You can download Yaafe source code, yaafe-v?.tgz, from the project’s home page: http://yaafe.sourceforge.net.
1.2. Getting Dependencies
Yaafe source code should compile on linux and MacOsX platform, and uses CMake as compilation tool.
Yaafe requires thirdparty libraries to enable specific features. Some of these library may already be available on your system.
The argtable library is required.
Depending on optional features you want to use, other librairies may be used:
- libsndfile: enable reading WAV files format (highly recommanded)
- libmpg123: enable reading MP3 audio files
- HDF5 >= 1.8: enable H5 output format
- liblapack: enable some audio features (LSF)
- FFTW3: use FFTW instead of Eigen for FFT computations (pay attention to licensing issues when linking with the GPL FFTW3 library).
To use the yaafe.py script you need Python >= 2.5, and the numpy package.
1.2.1. Debian/Ubuntu packages
The above dependencies can be installed using the following debian/ubuntu packages:
To get all those packages with apt-get:
> sudo apt-get install cmake cmake-curses-gui libargtable2-0 libargtable2-dev libsndfile1 libsndfile1-dev libmpg123-0 libmpg123-dev libfftw3-3 libfftw3-dev liblapack-dev libhdf5-serial-dev libhdf5-serial-1.8.4
1.3. Building on Unix/MacOsX
Once previous libraries are installed (some may have been locally installed in <lib-path>), you can compile with the following steps:
1.3.1. 1. Create build directory and change to it:
> mkdir build > cd build
1.3.2. 2. Start CMake and set options:
> ccmake -DCMAKE_PREFIX_PATH=<lib-path> -DCMAKE_INSTALL_PREFIX=<install-path> ..
The CMAKE_PREFIX_PATH option allows to specify a directory where Cmake looks for thirdparty libraries (lib/ and include/ directories). Additional options can also be used to define the location of a particular library: SNDFILE_ROOT, MPG123_ROOT, ARGTABLE2_ROOT, HDF5_ROOT, MATLAB_ROOT,FFTW3_ROOT.
ccmake starts an interactive gui which enables you to control various build options.
Several options can be set to control Yaafe build:
- WITH_FFTW3: enable use of FFTW to compute Fast Fourier transforms
- WITH_HDF5: enable HDF5 output format
- WITH_LAPACK: enable some audio features (LSF)
- WITH_MATLAB_MEX: enable building of matlab mex to extract features within Matlab environment.
- WITH_MPG123: enable read audio from MP3 files
- WITH_SNDFILE: enable read audio from WAV files (enabled by default)
- WITH_TIMERS: enable timers for debugging purpose (if enabled, the yaafe-engine program displays cpu time used by each component).
Those options can be set interactively within the ccmake gui, or can be set passing -DWITH_XXX=ON -DWITH_XXX=OFF arguments to the cmake orccmake programs.
1.3.3. 3. Build and install:
> make > make install
1.3.4. 4. Setting your environment
You should find the following directories under your installation path:
INSTALL_DIR/bin/ # scripts and binaries INSTALL_DIR/include/ # C++ headers to develop new components or integrate Yaafe in your application INSTALL_DIR/lib/ # dynamic libraries INSTALL_DIR/matlab/ # matlab scripts, and mex if WITH_MATLAB_MEX was enabled INSTALL_DIR/python_packages/ # Python part of Yaafe INSTALL_DIR/yaafe_extensions/ # Yaafe extensions dir
You must set your YAAFE_PATH environment var to the “yaafe_extensions” dir so that yaafe can find available features:
To easily use Yaafe, you should set the following environment vars:
export PATH=$PATH:$INSTALL_DIR/bin # on MacOsX replace LD_LIBRARY_PATH => DYLD_LIBRARY_PATH export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$INSTALL_DIR/lib export PYTHONPATH=$PYTHONPATH:$INSTALL_DIR/python_packages
if you use Matlab, you can set your MATLABPATH var:
error: ‘push_back’ was not declared in this scope, and no declarations were found by argument- dependent lookup at the point of instantiation [-fpermissive]
1.The above error can also be fixed by editing the Yaafe source file
src_cpp/yaafe-core/Ports.hand replacing the references
2.The yaafe.py script defined in Install_Dir/bin should have all the permissions to execute.Otherwise it will give the following error,
ERROR: cannot load yaafe packages: No module named yaafelib