Librosa libray [Python] resample function on Azure Function

Question

I am using librosa to resample the audio data, like below:

import librosa
filename = "/home/.../example.mp3"
audio, original_samplerate = librosa.load(filename) 
target_samplerate = 24000
new_audio = librosa.resample(audio,original_samplerate ,target_samplerate ,res_type='sinc_fastest')

This code works in my local linux system. However, when I deploy such code to the Azure function, it outputs Error: OSError: sndfile library not found Stack

The reason should be the librosa.resample function needs two C build Libs: Libsndfile and Libsamplerate. I can install them on my local linux system:

For Libsndfile:

sudo apt-get libsndfile1
sudo apt-get libsndfile-dev

For Libsamplerate: I first download the file from github: https://github.com/libsndfile/libsamplerate
Then just follow the install instruction:

./configure
make
make check
make install

But how to install these two Libs on Azure function?

Answer 1

Hello @Wang Zihao - It looks like the same question was answered on Stackoverflow: https://stackoverflow.com/questions/64839406/using-librosa-in-an-azure-function-app-written-in-python

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