How to solve RuntimeError: Couldn't find appropriate backend to handle uri dataset/data/0.wav and format None

Question

The Problem is if I try to run metadata = torchaudio.info(path) I get the error message RuntimeError: Couldn't find appropriate backend to handle uri dataset/data/0.wav and format None. And if I run print(str(torchaudio.list_audio_backends())) it returns an empty list

I looked at both the documentation and similar questions, like those How to solve RuntimeError: Couldn't find appropriate backend to handle uri in python, https://superuser.com/questions/1819222/how-to-install-sox-for-pytorch-audio/1819866#1819866 and cannot import torch audio ' No audio backend is available.'. According to them I just need sox and libsox. None of the install commands from the answeres helped me.

I have installed both sox and libsox-dev. Here are the Versions:

• pip show torchaudio -> ... Version: 2.2.1 ...
• sox --version -> sox: SoX v14.4.2
• ldd $(which sox) | grep libsox -> libsox.so.3 => /lib/x86_64-linux-gnu/libsox.so.3

I got no idea what's wrong and would appreciate any help.

Ps. I am using Ubuntu