"Illegal instruction" when using piper-tts python library

[youpie]

I am trying to use piper on a raspberry pi zero 2W. Downloading the binary and running it works fine. But when I try to install it using python and start the python version of piper I get the following error:

Job 1, 'piper' terminated by signal SIGILL (Illegal instruction)

I am using a virtual environment and use the latest version of Raspberry Pi OS

[micseydel]

I installed on my Raspberry Pi via pip and hit this same issue. I tried the alba model from https://github.com/rhasspy/piper/blob/master/VOICES.md and echo 'This is just a simple test' | piper --model en_GB-alba-medium.onnx --output_file checkit.wav results in Illegal instruction being output.

See also: https://github.com/rhasspy/piper/issues/769