Android + OpenCL implementation — latent-diffusion audio on-device on non-flagship phones (Adreno 6xx)
#6
by a8nova - opened
Hi! I wanted to share an Android + OpenCL implementation of Stable Audio Open Small, 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, running the whole pipeline on the GPU: T5 conditioning + 8-step DiT + VAE decode.
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 generates an 11 s stereo 44.1 kHz clip in ~100–130 s (thermal-dependent) — to my knowledge one of the first latent-diffusion audio models running fully on a mid-range phone GPU.
Hope it's useful — happy to answer questions!