arm64 Support — Raspberry Pi 4B
HayaKoe works on aarch64 (ARM64) Linux with the same code as x86_64.
Why It Works
Two conditions are met.
- ONNX Runtime officially provides aarch64 builds.
- pyopenjtalk's custom fork (lemon-pyopenjtalk-prebuilt) builds aarch64 wheels (-> OpenJTalk Dictionary Bundling).
This suggests it should also work on Apple Silicon (macOS), but we have not been able to verify due to lack of test hardware.
Instead, we have confirmed it works on Raspberry Pi 4B.
Raspberry Pi 4B Measurements
Results measured on Raspberry Pi 4B (Linux 6.8, aarch64, ONNX Runtime 1.23.2).
| Text | Inference Time | Speed Factor |
|---|---|---|
| Short | 3.169 s | 0.3x |
| Medium | 13.042 s | 0.3x |
| Long | 35.119 s | 0.3x |
At approximately 1/3 real-time, it is not sufficient for interactive use, but we believe there is value in the fact that it runs on an ARM board at all.
For measurement scripts and reproduction instructions, see Benchmark — Raspberry Pi 4B.