Android + OpenCL implementation — runs on-device on non-flagship phones (Adreno 6xx)

by a8nova - opened 17 days ago

Hi! I wanted to share an Android + OpenCL implementation of Moonshine-tiny, in case anyone wants to run it on a phone:

Try it: Edgi on Google Play — runs fully on-device, no cloud.
Open source: the app is built on top of the open-source adreno-llms inference engine — https://github.com/a8nova/adreno-llms — pure C++/OpenCL with hand-written kernels tuned for Adreno, taking the raw 16 kHz waveform in directly (no mel stage).

It's tuned and tested on Adreno 6xx GPUs — the GPU class in mid-range and older Android phones (verified on a 2020 Motorola Razr / Adreno 620) — and should run on most arm64 Android phones with OpenCL, though the optimizations are Adreno-specific. On the Adreno 620 it transcribes at RTF ~0.3 one-shot (including TTFT), token-exact vs the PyTorch reference on the verification clips.

Hope it's useful — happy to answer questions!

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