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CPU instructions

In order to run TensorFlow used by few Open Voice OS components, the CPU must support AVX (Advanced Vector Extensions) instruction set for x86 processors or SIMD (Single Instruction, Multiple Data) instruction set for ARM processors.

grep -E -i --color "avx|simd" /proc/cpuinfo

sysctl -a | grep -E -i --color "avx|simd"

If the command does not return an output then your CPU doesn't meet the requirements for TensorFlow.

AVX or SIMD instruction set missing

Because the instruction set is missing does not mean that Open Voice OS can't run on your hardware, it simply means that Precise wake word engine or anything else using TensorFlow will not run on it.