problem installing on MacOs BigSur 11.4

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when I tried ot install I get the following error
I have attached the log file

webrtcvad_log.txt

pip3 install webrtcvad --log webrtcvad_log.txt
Collecting webrtcvad
Downloading webrtcvad-2.0.10.tar.gz (66 kB)
|████████████████████████████████| 66 kB 451 kB/s
Building wheels for collected packages: webrtcvad
Building wheel for webrtcvad (setup.py) ... error
ERROR: Failed building wheel for webrtcvad
Running setup.py clean for webrtcvad
Failed to build webrtcvad
Installing collected packages: webrtcvad
Running setup.py install for webrtcvad ... error
ERROR: Command errored out with exit status 1: /Library/Frameworks/Python.framework/Versions/3.9/bin/python3.9 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/2q/5hvf_mmd3kvdplw3nlks4s70_wp3ds/T/pip-install-stf6w5oi/webrtcvad_1586ace923c141148db5db726514456f/setup.py'"'"'; file='"'"'/private/var/folders/2q/5hvf_mmd3kvdplw3nlks4s70_wp3ds/T/pip-install-stf6w5oi/webrtcvad_1586ace923c141148db5db726514456f/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(file) if os.path.exists(file) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record /private/var/folders/2q/5hvf_mmd3kvdplw3nlks4s70_wp3ds/T/pip-record-0go3rwp7/install-record.txt --single-version-externally-managed --compile --install-headers /Library/Frameworks/Python.framework/Versions/3.9/include/python3.9/webrtcvad Check the logs for full command output.

Any help would be greatly apreciated.

Thank you