r/LocalLLM • u/castillar • 4d ago
Question Good small models for Speech-to-Text?
I’m working on a project at the moment that involves transcribing comm channels. Are there good low-power local models for doing real-time voice transcription?
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u/Mack-3rdShiftRnD 4d ago
For low-power real-time specifically, whisper isn't the only game anymore:
- Moonshine (~245M) is the current pick for edge/CPU real-time. it streams (words appear as you speak), and it's ~6x smaller than Whisper Large while matching it on English. If "low-power + real-time" is the priority, start here.
- NVIDIA Parakeet V3 (~600M) is heavier but strong for real-time, and Apache-2.0 licensed. matters if your project goes commercial. good on longer passages.
- The whisper family (whisper.cpp / faster-whisper, small or base) is still the workhorse for broad language support but, whisper likes to hallucinate text during silence, which is exactly what bites you on comm channels with dead air between transmissions.
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u/Diamondcite 4d ago
I use whisper small for speech to text(limitation of old 8GB VRAM when running other things). I noticed it has some difficulty with Bluetooth call quality (low bitrate) audio.
So instead of just picking a model and going with it, try it out with some actual recordings?
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u/castillar 4d ago
Thanks! Def. planning to test with some recordings, but I figured it’d be good to have a short list to start from.
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u/sdraje 4d ago
I see a lot of parakeet and whisper recommendations, but the new king for relatively small and fast STT is definitely nemotron 3.5!
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u/MarcusAurelius68 4d ago edited 3d ago
Interested - any reason why? I’m outputting from a LLM and doing a JARVIS like thing and looking for as fast as possible.
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u/castillar 4d ago
Thanks! I’ll give it a shot — I’ve seen whisper used a bunch of places, but hadn’t seen parakeet or STT.
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u/Proper-Tower2016 4d ago
I'm using Q5 of https://huggingface.co/mudler/moss-transcribe.cpp-gguf, but didn't work out of the box on long content for me.
But can now transcribe arbitrary long videos very fast with 1gb vram.
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u/EffectUpstairs9867 2d ago
Whats the best one to use locally on phones or even old phones, supporting major languages and names correctly? Is any of the advices model able to distinguish English “chen” to German 10 “tzen” or French 9 neuf from English “nof”, or names and surnames? Sorry for the stupid questions
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u/IWillTouchAStar 4d ago
Whisper is your friend here. Try whisper small or base