音频处理 windows10下python三方库librosa安装教程
librosa是处理音频库里的opencv,使用python脚本研究音频，先安装三方库librosa。
如下通过清华镜像源安装librosa；
pipinstall-ihttps://pypi.tuna.tsinghua.edu.cn/simplelibrosa
D:\D00_Python3\D00A2_python3.7.3\install>pipinstall-ihttps://pypi.tuna.tsinghua.edu.cn/simplelibrosa
Lookinginindexes:https://pypi.tuna.tsinghua.edu.cn/simple
Processingc:\users\administrator\appdata\local\pip\cache\wheels\6e\d3\47\7582e7e63ee9127f4773adeb8dcd8490771c063e2607354ba0\librosa-0.7.2-py3-none-any.whl
Requirementalreadysatisfied:numba>=0.43.0ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromlibrosa)(0.50.0)
Requirementalreadysatisfied:joblib>=0.12ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromlibrosa)(0.15.1)
Requirementalreadysatisfied:resampy>=0.2.2ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromlibrosa)(0.2.2)
Requirementalreadysatisfied:numpy>=1.15.0ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromlibrosa)(1.18.5)
Requirementalreadysatisfied:audioread>=2.0.0ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromlibrosa)(2.1.8)
Requirementalreadysatisfied:scipy>=1.0.0ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromlibrosa)(1.4.1)
Requirementalreadysatisfied:soundfile>=0.9.0ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromlibrosa)(0.10.3.post1)
Requirementalreadysatisfied:scikit-learn!=0.19.0,>=0.14.0ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromlibrosa)(0.23.1)
Requirementalreadysatisfied:six>=1.3ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromlibrosa)(1.15.0)
Requirementalreadysatisfied:decorator>=3.0.0ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromlibrosa)(4.4.2)
Requirementalreadysatisfied:setuptoolsind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromnumba>=0.43.0->librosa)(47.1.1)
Requirementalreadysatisfied:llvmlite<0.34,>=0.33.0.dev0ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromnumba>=0.43.0->librosa)(0.33.0)
Requirementalreadysatisfied:cffi>=1.0ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromsoundfile>=0.9.0->librosa)(1.14.0)
Requirementalreadysatisfied:threadpoolctl>=2.0.0ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromscikit-learn!=0.19.0,>=0.14.0->librosa)(2.1.0)
Requirementalreadysatisfied:pycparserind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromcffi>=1.0->soundfile>=0.9.0->librosa)(2.20)
Installingcollectedpackages:librosa
Successfullyinstalledlibrosa-0.7.2
D:\D00_Python3\D00A2_python3.7.3\install>
piplist查看三方包：
D:\D00_Python3\D00A2_python3.7.3\install>piplist PackageVersion -------------------------------- absl-py0.9.0 astor0.8.1 audioread2.1.8 cffi1.14.0 decorator4.4.2 defusedxml0.6.0 gast0.3.3 google-pasta0.2.0 grpcio1.29.0 h5py2.10.0 importlib-metadata1.6.1 joblib0.15.1 Keras-Applications1.0.8 Keras-Preprocessing1.1.2 librosa0.7.2 llvmlite0.33.0 Markdown3.2.2 networkx2.2 numba0.50.0 numpy1.18.5 pip20.1.1 protobuf3.12.2 pycparser2.20 resampy0.2.2 scikit-learn0.23.1 scipy1.4.1 setuptools47.1.1 six1.15.0 SoundFile0.10.3.post1 tensorboard1.14.0 tensorflow1.14.0 tensorflow-estimator1.14.0 termcolor1.1.0 threadpoolctl2.1.0 Werkzeug1.0.1 wheel0.34.2 wrapt1.12.1 zipp3.1.0 D:\D00_Python3\D00A2_python3.7.3\install>
如上
librosa---- 0.7.2
numba-----0.50.0
下面使用librosa，报的是numba的错误！
D:\D00_Python3\D00A2_python3.7.3\install>python-c"importlibrosa" Traceback(mostrecentcalllast): File"",line1,in File"D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\__init__.py",line12,in from.importcore File"D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\core\__init__.py",line125,in from.time_frequencyimport*#pylint:disable=wildcard-import File"D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\core\time_frequency.py",line11,in from..util.exceptionsimportParameterError File"D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\util\__init__.py",line77,in from.utilsimport*#pylint:disable=wildcard-import File"D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\util\utils.py",line15,in from.decoratorsimportdeprecated File"D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\util\decorators.py",line9,in fromnumba.decoratorsimportjitasoptional_jit ModuleNotFoundError:Nomodulenamed'numba.decorators' D:\D00_Python3\D00A2_python3.7.3\install>
解决办法：
卸载numba后，重新安装降版本的numba，安装numba==0.48.0
pipuninstall numba
pipinstall-ihttps://pypi.tuna.tsinghua.edu.cn/simplenumba==0.48.0
python-c"importlibrosa;print(librosa.__version__) "
可以看到成功安装了正确可使用的librosa库！
D:\D00_Python3\D00A2_python3.7.3\install>pipuninstallnumba Foundexistinginstallation:numba0.50.0 Uninstallingnumba-0.50.0: Wouldremove: d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages\numba-0.50.0.dist-info\* d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages\numba\* d:\d00_python3\d00a2_python3.7.3\install\scripts\numba d:\d00_python3\d00a2_python3.7.3\install\scripts\pycc Proceed(y/n)?y Successfullyuninstallednumba-0.50.0 D:\D00_Python3\D00A2_python3.7.3\install>pipinstall-ihttps://pypi.tuna.tsinghua.edu.cn/simplenumba==0.48.0 Lookinginindexes:https://pypi.tuna.tsinghua.edu.cn/simple Collectingnumba==0.48.0 Downloadinghttps://pypi.tuna.tsinghua.edu.cn/packages/f5/ca/9e47464d388c3372454639d1739fa21605862c8815d53279e1216b5694e1/numba-0.48.0-cp37-cp37m-win_amd64.whl(2.1MB)|█████████████████████████████▌|1.9MB2.2MB/seta0:00:01|██████████████████████████████|2.0MB2.2MB/seta0:00:01|██████████████████████████████▌|2.0MB2.2MB/seta0:00:0|███████████████████████████████|2.0MB2.2MB/seta0:00:0|███████████████████████████████▌|2.1MB2.2MB/seta0:00:|████████████████████████████████|2.1MB2.2MB/s Requirementalreadysatisfied:setuptoolsind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromnumba==0.48.0)(47.1.1) Requirementalreadysatisfied:numpy>=1.15ind:\d00_python3\d00a2_python3.7.3\install\lib\site-packages(fromnumba==0.48.0)(1.18.5) Collectingllvmlite<0.32.0,>=0.31.0dev0 Downloadinghttps://pypi.tuna.tsinghua.edu.cn/packages/1d/83/cd2843726a6316e372822e9e42cd0083b6d1d98d89d53880e7e67d5eec68/llvmlite-0.31.0-cp37-cp37m-win_amd64.whl(13.6MB) ████████████████████████████▌|12.1MB3.3MB/seta0:00:01|█████████████████████████████|12.5MB3.3MB/seta0:00:01|██████████████████████████████|12.9MB3.3MB/seta0:00:0|██████████████████████████████▌|13.1MB3.3MB/seta0:00:|████████████████████████████████|13.6MB434kB/s Installingcollectedpackages:llvmlite,numba Attemptinguninstall:llvmlite Foundexistinginstallation:llvmlite0.33.0 Uninstallingllvmlite-0.33.0: Successfullyuninstalledllvmlite-0.33.0 Successfullyinstalledllvmlite-0.31.0numba-0.48.0 D:\D00_Python3\D00A2_python3.7.3\install>python-c"importlibrosa;print(librosa.__version__)" 0.7.2
总结
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