eSpeak NG is an open source speech synthesizer that supports more than hundred languages and accents.
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Updated
Sep 22, 2026 - C
eSpeak NG is an open source speech synthesizer that supports more than hundred languages and accents.
Software Automatic Mouth - Tiny Speech Synthesizer
eSpeak NG is an open source speech synthesizer that supports 101 languages and accents.
Pure C inference engine for Qwen3-TTS text-to-speech. No Python, no PyTorch — just C and BLAS. Supports 0.6B and 1.7B models, 9 voices, 10 languages.
Speech synthesis running on ESP32 based on Flite engine.
Live Coding Singing Synthesizer. Python sinsy-NG wrapper.
A Modern Voice Synthesizer for the TRS-80 Model 1, Model III, and Model 4!
The open source intelligent personal assistant
Software Automatic Mouth - Tiny Speech Synthesizer
SYN6288 full-featured driver library for general-purpose MCU and Linux.
LambdaSpeak - A Next-Generation Speech Synthesizer for the Amstrad (Schneider) CPC, Sinclair ZX Spectrum, and Multitech Microprofessor
A real-time speech analysis/synthesis system
Klatt speech synthesizer
A Game Boy realtime speech synthesizer that outputs gibberish voice.
SYN6658 full-featured driver library for general-purpose MCU and Linux.
A lightweight, offline Rust inference library for Kokoro TTS - an 82M-parameter open-weights text-to-speech model.
A Mac compatible version of the BestSpeech/KeyNote Gold speech synthesizer.
SYN6288E full-featured driver library for general-purpose MCU and Linux.
SYN6988 full-featured driver library for general-purpose MCU and Linux.
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