Install pyAudioAnalysis Library

[andrewg23]

Learn how to install the pyAudioAnalysis library on the Nano, and produce documentation on how to do so.

[andrewg23]

We had issues installing the dependencies required to install the library. @amalaquias figured out how to fix it and created instructions in /microphone/audioAnalysisLibraries.md.

For the most part these instructions worked for me. I had to edit the pyAudioAnalysis/requirements.txt by removing the numpy dependency. It specified numpy==1.18.1 but opencv-python 4.5.3.56 requires numpy>=1.19.3. I updated numpy using pip and was then able to install the library.

[amalaquias]

Was it giving you an error when numpy 1.18.1 was being installed? Or when using opencv?

[andrewg23]

The error came from opencv. Installing the dependencies from the requirements.txt file downgraded numpy but then opencv needed a newer version.
The following error came from running pip install -r ./requirements.txt

...
Installing collected packages: numpy
  Attempting uninstall: numpy
    Found existing installation: numpy 1.19.5
    Uninstalling numpy-1.19.5:
      Successfully uninstalled numpy-1.19.5
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
opencv-python 4.5.3.56 requires numpy>=1.19.3, but you have numpy 1.18.1 which is incompatible.
Successfully installed numpy-1.18.1

[andrewg23]

I have changed the instructions in /microphone/audioAnalysisLibraries.md to manually install each of the library dependencies to make sure they are all up to date. This method of individual installation is actually given in the pyAudioAnalysis wiki.

[amalaquias]

Okay, this is interesting. I looked through the changes you added to the instructions, and are we sure that the latest install of each library will not cause dependency issues? I'm fine with specifying numpy's installation to something more recent. But we should make sure that the other ones won't cause any trouble if installing the most recent versions. Also, we can create a text file with those packages (including specific versions) and make the installation more autonomous with pip install -r ourReqFile.txt

[amalaquias]

I have both numpy==1.18.1 and opencv-python==4.5.3.56 installed and there are no errors. Could you let me know your version of pip? Mine is 21.2.4

[andrewg23]

I had numpy==1.19.5, opencv-python==4.5.3.56, and pip version 21.2.4. After downgrading to numpy==1.18.1 everything now works!
This solves the problem I was having in #14

[amalaquias]

Awesome! Did it give you the previous error?