Failed building wheel for llvmlite, Could not build wheels for numba, llvmlite, which is required to install pyproject.toml-based projects

Hello,

I encounter these errors when trying to install ddsp on my mac : ERROR: Failed building wheel for llvmlite and ERROR: Could not build wheels for numba, llvmlite, which is required to install pyproject.toml-based projects. I tried different things but nothing seems to resolve the issue.

I hope someone can help me!
Thanks in advance,
Adriaan