whistle-esp32
Whistle speech-to-text running fully on an ESP32-S3: hold a button, say a colour in one of 7 languages, the LED does it. No network.
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GITHUB · launched Oct 19, 2026 · 142 upvotes (top 8%) · 2 views
Niche: speech processing software · 57 launches, 7 in the last 7 days ▼ -22% · Explore this niche →
Category and tags
- Horizontal
- Hardware & robotics
- Prosumer
- AI-native
- Hobby / open-source project
- edge-ai
- esp32
- esp32-s3
- inmp441
- speech-recognition
- speech-to-text
- +2 more
Visit website ↗ Source listing ↗
More like this: all 57 launches in speech processing software →
Could you build this?
No Offline multilingual speech recognition on an ESP32-S3 depends on embedded hardware, quantized keyword-spotting models, and memory-constrained firmware, which go beyond vibe-coded app work.
What it would actually take: The stack is an embedded speech model (keyword spotting or small ASR, quantized for the ESP32-S3's PSRAM and DSP limits) running in C/C++ on ESP-IDF, with microphone DSP pipelines and button and LED drivers. The hard part is fitting seven languages into the memory budget with acceptable accuracy. This needs embedded ML, audio DSP, and firmware expertise plus hardware testing.
Competitors
Other products that read as similar to this one : 151 launches clear the similarity bar, closest 8 shown.
Attention rank: #16 of 152 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 339 days after the earliest competitor.
- ssi263-speech · github · 2026-09-25 · 13 upvotes · similarity 0.42
- Lightning V3 · ph · 2026-04-02 · 321 upvotes · similarity 0.40
- Text to Speech Local · ph · 2026-10-06 · 1 upvotes · similarity 0.38
- esp32-pie-asr · github · 2026-10-25 · 16 upvotes · similarity 0.38
- Speech to Text Free · ph · 2026-11-03 · 1 upvotes · similarity 0.37
- Live speech-to-text on an ESP32-P4 microcontroller, no cloud · hn · 2026-10-27 · 16 upvotes · similarity 0.37
- Morse Code Translator & Trainer · ph · 2026-11-04 · 2 upvotes · similarity 0.37
- Shepit · ph · 2026-10-14 · 1 upvotes · similarity 0.37
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.