andrisgauracs / 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.

QwenAudio / SenseVoice

Open-source SenseVoiceSmall model for Mandarin, Cantonese, English, Japanese, and Korean ASR, language ID, emotion recognition, and audio event detection.

espeak-ng / espeak-ng

eSpeak NG is an open source speech synthesizer that supports more than hundred languages and accents.

TEN-framework / ten-vad

Voice Activity Detector (VAD) : low-latency, high-performance and lightweight

QwenAudio / Fun-ASR

Fun-ASR speech recognition models, with native Hugging Face Transformers support for Fun-ASR-Nano and separate FunASR, vLLM and llama.cpp deployment paths.

espressif / esp-sr

Speech recognition

wiringai / mod_earshot

FreeSWITCH module that streams live call audio to AI voice agents over WebSocket and plays their voice back — full-duplex.

tlack / babytalk

Optimized ESP32-S3/P4 fully offline speech to text and text to speech system for Micropython and AtomVM, featuring a finetuned STT model for noisy environments, plus a data generation/field capture/model finetuning framework. Includes high performance 4/8bit int kernels for Xtensa/RiscV PIE vector units

lokutor-ai / ito

Natural-sounding streaming text-to-speech for the ESP32-S3: 4.4 M params, 4.9 MB, no cloud, no NPU

cmusphinx / pocketsphinx

A small speech recognizer

HeyWillow / willow

Open source, local, and self-hosted Amazon Echo/Google Home competitive Voice Assistant alternative

earlephilhower / ESP8266Audio

Arduino library to play MOD, WAV, FLAC, MIDI, RTTTL, OGG/Opus, MP3, and AAC files on I2S DACs or with a software emulated delta-sigma DAC on the ESP8266 and ESP32 and Pico

praat / praat.github.io

Praat: Doing Phonetics By Computer

Ryuk17 / SpeechAlgorithms

You can find the speech algorithms you want here

lokutor-ai / oido

Oído: open-vocabulary speech recognition that fits in a $5 ESP32-S3. 3.7% LibriSpeech WER, no cloud, no NPU.

oss-codes / flashvad

FlashVAD is a small causal voice-activity detector and integration toolkit for low-latency voice calls. It emits one speech probability every 10 ms

Mudb0y / openevv

Reimplementation of IBM's Embedded ViaVoice / ETI Eloquence SF in portable C

fotonik-sk / stm32n6-speech-recognition

Offline speech-to-text on the STM32N6 microcontroller: free English speech recognition on the NPU, no cloud

ZhiFun / FunModularKeyboard

A modular macro keypad powered by ESP32-S3 with magnetic snap-on expansion modules. Features 8 switchable keymap profiles, voice commands & speech-to-text, USB+BLE dual-mode, LVGL touch display, RGB effects, and a WiFi companion desktop app for visual key mapping, OTA updates, PC monitoring, and script automation.

kdrkdrkdr / faster-enhancer.c

Pure C implementation of FastEnhancer. 3.3x faster than the ONNX Runtime graph, same quality.