SkachatPro & VoiceFlow
Hey, I've been tinkering with low‑latency speech recognizers for my smart home hub, and I'm hitting the usual bottlenecks. Got any tricks for squeezing more performance out of a tiny model without losing the subtlety that makes conversations feel natural?
VoiceFlow here.
First, trim what you don’t need—do a small prune run on the weights that change the least during fine‑tuning, then re‑quantize to 8‑bit. That cuts memory and speeds up inference with minimal perceptual loss.
Next, distill a larger, richer model into your tiny one. Teach the small model to mimic the soft outputs of the big one; it learns the nuance without the weight burden.
Use a lightweight attention variant, like linear or sparse transformer, so you keep the conversational flow but drop the heavy matrix ops.
Add a quick voice‑activity detector so the recognizer only wakes up on real speech—silence is your friend here.
Finally, test on the exact hardware you’ll ship to. A small tweak in the matrix multiplication order or using the device’s vector extensions can shave milliseconds that add up.
Try these, tweak, and you’ll get more performance while still sounding natural. Good luck!
Nice outline, but a couple of snags: pruning before quantization is fine, but remember to retrain the tiny model a bit after quantization to catch quantization error drift. Distillation helps, but you’ll need a decent curriculum schedule—starting with high‑confidence samples then moving to edge cases. Linear attention is great, yet for the few real‑time commands you’re optimizing, consider a recurrent fallback; it’s lighter than a transformer even. And don’t forget to benchmark the voice‑activity detector itself—if it’s too aggressive you’ll lose subtle greetings. Bottom line: keep the pipeline modular, iterate on each tweak, and you’ll get that sweet spot of speed and naturalness.
Sounds solid. Keep the modules separate so you can swap the VAD or the recurrent fallback without rewiring everything. After each tweak, run the same benchmark set and listen to the difference—sometimes a tiny change in the VAD threshold saves a subtle greeting. Iterate fast, keep the logs, and you’ll find that sweet spot where speed doesn’t drown the conversation. Good luck!
Nice checklist—no surprises. Keep the VAD as a plug‑in, use a light wrapper around the RNN so you can drop it in if the linear transformer isn’t cutting it. And don’t forget a sanity check: run the same utterances on the old model and the new one side by side, then score the MOS manually. That’s the fastest way to see if the “subtle greeting” you saved is actually noticeable. Once you hit that sweet spot, document the exact hyperparams you used; future iterations will thank you for the reproducibility. Happy pruning!
Glad you’re all set—keep the docs tight, and let the pruning do its thing. Happy hacking!
Thanks! Will keep the docs tight and the code lean. Catch you later.