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；
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple librosa
D:\D00_Python3\D00A2_python3.7.3\install>pip install -i https://pypi.tuna.tsinghua.edu.cn/simple librosa
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Processing c:\users\administrator\appdata\local\pip\cache\wheels\6e\d3\47\7582e7e63ee9127f4773adeb8dcd8490771c063e2607354ba0\librosa-0.7.2-py3-none-any.whl
Requirement already satisfied: numba>=0.43.0 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from librosa) (0.50.0)
Requirement already satisfied: joblib>=0.12 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from librosa) (0.15.1)
Requirement already satisfied: resampy>=0.2.2 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from librosa) (0.2.2)
Requirement already satisfied: numpy>=1.15.0 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from librosa) (1.18.5)
Requirement already satisfied: audioread>=2.0.0 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from librosa) (2.1.8)
Requirement already satisfied: scipy>=1.0.0 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from librosa) (1.4.1)
Requirement already satisfied: soundfile>=0.9.0 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from librosa) (0.10.3.post1)
Requirement already satisfied: scikit-learn!=0.19.0,>=0.14.0 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from librosa) (0.23.1)
Requirement already satisfied: six>=1.3 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from librosa) (1.15.0)
Requirement already satisfied: decorator>=3.0.0 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from librosa) (4.4.2)
Requirement already satisfied: setuptools in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from numba>=0.43.0->librosa) (47.1.1)
Requirement already satisfied: llvmlite<0.34,>=0.33.0.dev0 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from numba>=0.43.0->librosa) (0.33.0)
Requirement already satisfied: cffi>=1.0 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from soundfile>=0.9.0->librosa) (1.14.0)
Requirement already satisfied: threadpoolctl>=2.0.0 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from scikit-learn!=0.19.0,>=0.14.0->librosa) (2.1.0)
Requirement already satisfied: pycparser in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from cffi>=1.0->soundfile>=0.9.0->librosa) (2.20)
Installing collected packages: librosa
Successfully installed librosa-0.7.2
D:\D00_Python3\D00A2_python3.7.3\install>
pip list查看三方包：
D:\D00_Python3\D00A2_python3.7.3\install>pip list
Package Version
-------------------- ------------
absl-py 0.9.0
astor 0.8.1
audioread 2.1.8
cffi 1.14.0
decorator 4.4.2
defusedxml 0.6.0
gast 0.3.3
google-pasta 0.2.0
grpcio 1.29.0
h5py 2.10.0
importlib-metadata 1.6.1
joblib 0.15.1
Keras-Applications 1.0.8
Keras-Preprocessing 1.1.2
librosa 0.7.2
llvmlite 0.33.0
Markdown 3.2.2
networkx 2.2
numba 0.50.0
numpy 1.18.5
pip 20.1.1
protobuf 3.12.2
pycparser 2.20
resampy 0.2.2
scikit-learn 0.23.1
scipy 1.4.1
setuptools 47.1.1
six 1.15.0
SoundFile 0.10.3.post1
tensorboard 1.14.0
tensorflow 1.14.0
tensorflow-estimator 1.14.0
termcolor 1.1.0
threadpoolctl 2.1.0
Werkzeug 1.0.1
wheel 0.34.2
wrapt 1.12.1
zipp 3.1.0
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 "import librosa"
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\__init__.py", line 12, in <module>
from . import core
File "D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\core\__init__.py", line 125, in <module>
from .time_frequency import * # pylint: disable=wildcard-import
File "D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\core\time_frequency.py", line 11, in <module>
from ..util.exceptions import ParameterError
File "D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\util\__init__.py", line 77, in <module>
from .utils import * # pylint: disable=wildcard-import
File "D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\util\utils.py", line 15, in <module>
from .decorators import deprecated
File "D:\D00_Python3\D00A2_python3.7.3\install\lib\site-packages\librosa\util\decorators.py", line 9, in <module>
from numba.decorators import jit as optional_jit
ModuleNotFoundError: No module named '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
pip uninstall numba
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple numba==0.48.0
python -c "import librosa;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>pip uninstall numba
Found existing installation: numba 0.50.0
Uninstalling numba-0.50.0:
Would remove:
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
Successfully uninstalled numba-0.50.0
D:\D00_Python3\D00A2_python3.7.3\install>pip install -i https://pypi.tuna.tsinghua.edu.cn/simple numba==0.48.0
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting numba==0.48.0
Downloading https://pypi.tuna.tsinghua.edu.cn/packages/f5/ca/9e47464d388c3372454639d1739fa21605862c8815d53279e1216b5694e1/numba-0.48.0-cp37-cp37m-win_amd64.whl (2.1 MB)|█████████████████████████████▌ | 1.9 MB 2.2 MB/s eta 0:00:01 |██████████████████████████████ | 2.0 MB 2.2 MB/s eta 0:00:01 |██████████████████████████████▌ | 2.0 MB 2.2 MB/s eta 0:00:0 |███████████████████████████████ | 2.0 MB 2.2 MB/s eta 0:00:0 |███████████████████████████████▌| 2.1 MB 2.2 MB/s eta 0:00: |████████████████████████████████| 2.1 MB 2.2 MB/s
Requirement already satisfied: setuptools in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from numba==0.48.0) (47.1.1)
Requirement already satisfied: numpy>=1.15 in d:\d00_python3\d00a2_python3.7.3\install\lib\site-packages (from numba==0.48.0) (1.18.5)
Collecting llvmlite<0.32.0,>=0.31.0dev0
Downloading https://pypi.tuna.tsinghua.edu.cn/packages/1d/83/cd2843726a6316e372822e9e42cd0083b6d1d98d89d53880e7e67d5eec68/llvmlite-0.31.0-cp37-cp37m-win_amd64.whl (13.6 MB)
████████████████████████████▌ | 12.1 MB 3.3 MB/s eta 0:00:01 |█████████████████████████████ | 12.5 MB 3.3 MB/s eta 0:00:01 |██████████████████████████████ | 12.9 MB 3.3 MB/s eta 0:00:0 |██████████████████████████████▌ | 13.1 MB 3.3 MB/s eta 0:00: |████████████████████████████████| 13.6 MB 434 kB/s
Installing collected packages: llvmlite, numba
Attempting uninstall: llvmlite
Found existing installation: llvmlite 0.33.0
Uninstalling llvmlite-0.33.0:
Successfully uninstalled llvmlite-0.33.0
Successfully installed llvmlite-0.31.0 numba-0.48.0
D:\D00_Python3\D00A2_python3.7.3\install>python -c "import librosa;print(librosa.__version__) "
0.7.2
总结
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