Alternative TTS plugins for Unity

(haven't tested these, listed just as an reference)

Windows

FREE

• https://github.com/Macoron/piper.unity (Unity3d port of Piper text-to-speech (TTS) library)
• https://github.com/nixon-voxell/UnityTTS (fastspeech tensorflow)
• https://github.com/unitycoder/tiktok-tts-unity (uses webrequest, unofficial)
• webgl (uses js tts) https://github.com/unitycoder/webgl-js-TTS
• https://github.com/kurtdekker/UnitySAM
• https://forum.unity.com/threads/text-to-speech-dll-for-windows-desktop.56038/
• https://chadweisshaar.com/blog/2015/07/02/microsoft-speech-for-unity/
• http://www.finalmarco.com/2016/01/02/text-speech-unity-5/
• https://github.com/Gerald-Chuah/Unity-TextToSpeech
• wrapper https://github.com/mastertostar/Csharp-espeak-tts
• https://github.com/voxell-tech/UnityTTS
• https://github.com/keijiro/UnityRustTts
• https://github.com/unitycoder/UnityRuntimeTextToSpeech (this current repo, uses eSpeak)

PAID

• https://github.com/mapluisch/OpenAI-Text-To-Speech-for-Unity
• https://forum.unity.com/threads/rt-voice-run-time-text-to-speech-solution.340046/
• search TTS https://assetstore.unity.com/?q=TTS&orderBy=0
• https://github.com/ActiveNick/Unity-Text-to-Speech
• https://assetstore.unity.com/packages/tools/integration/dislectek-192133

Android

• https://github.com/simplygamedev/UnityTTSEngine
• TTS and STT https://github.com/PingAK9/Speech-And-Text-Unity-iOS-Android

Arduino

• https://github.com/jscrane/TTS