oido
Oído: open-vocabulary speech recognition that fits in a $5 ESP32-S3. 3.7% LibriSpeech WER, no cloud, no NPU.
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GITHUB · launched Sep 30, 2026 · 85 upvotes (top 10%) · 0 views
Niche: speech and voice ai models · 143 launches, 7 in the last 7 days ▼ -30% · Explore this niche →
Category and tags
- Horizontal
- Model & infra
- Developer
- AI-native
- Hobby / open-source project
- asr
- conformer
- edge-ai
- embedded
- esp-idf
- esp32
- +6 more
Visit website ↗ Source listing ↗
More like this: all 143 launches in speech and voice ai models →
Could you build this?
No Fitting open-vocabulary ASR with a 3.7% LibriSpeech WER into an ESP32-S3 microcontroller without cloud or NPU requires deep embedded systems, DSP, and extreme model quantization/architecture research.
What it would actually take: Building this requires novel acoustic model compression techniques (e.g., heavily quantized custom Conformer or RNN-T models under a few megabytes) paired with custom C/assembly SIMD kernels utilizing the ESP32-S3's vector extensions. The pipeline requires raw audio I2S capture, fixed-point mel-spectrogram extraction, and ultra-low-memory streaming beam search or greedy decoding within 512KB SRAM / 8MB PSRAM limits. Expertise in TinyML, embedded C/C++, and speech recognition model distillation is essential.
Competitors
Other products that read as similar to this one : 1347 launches clear the similarity bar, closest 8 shown.
Attention rank: #149 of 1348 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 335 days after the earliest competitor.
- Speko: OpenRouter for Voice · yc · 2026-07-29 · 14 upvotes · similarity 0.62
- ito · github · 2026-10-02 · 11 upvotes · similarity 0.61
- pega-omni · github · 2026-09-23 · 27 upvotes · similarity 0.61
- Speko · ph · 2026-08-27 · 266 upvotes · similarity 0.60
- rapido-tts · github · 2026-10-07 · 14 upvotes · similarity 0.59
- awesome-tts-architectures · github · 2026-09-13 · 15 upvotes · similarity 0.58
- genpark-mel-filterbank-log-spectrogram-skill · github · 2026-09-10 · 7 upvotes · similarity 0.58
- wavrail · github · 2026-09-26 · 31 upvotes · similarity 0.58
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