Note: The images with plugin examples and the demo project were created using the Runtime Audio Importer plugin. So, to follow these examples, you will need to install that plugin as well. However, you can also implement your own audio input solution using Runtime Text To Speech.
![:speaking_head:]( ":speaking_head:")
Transform your game with real-time, offline, cross-platform text-to-speech synthesis!
Transform your game with real-time, offline, cross-platform text-to-speech synthesis!Add powerful offline text-to-speech capabilities to your project with over 35 languages and 100 voices featuring more than 120 voice qualities. Synthesize speech in real-time without internet connectivity, powered by Piper and ONNX Runtime.
Quick links:
Key features:
![:dart:]( ":dart:")
Core Capabilities:
Core Capabilities:- Complete offline text-to-speech synthesis
- 35+ languages supported
- 100+ unique voices available
- 120+ voice qualities
- Cross-platform support: Windows, Linux, Mac, Android, iOS
- Experimental support for Meta Quest and Apple Vision Pro
![:zap:]( ":zap:")
Voice System:
Voice System:- One-click voice model downloads through editor interface
- In-editor voice preview and testing
- Runtime voice model selection
- Raw PCM float audio output
- Flexible integration with any audio playback solution
- Built-in compatibility with Runtime Audio Importer
![:hammer_and_wrench:]( ":hammer_and_wrench:")
Development Features:
Development Features:- Full Blueprint and C++ API support
- Easy voice model management and packaging
- Comprehensive voice metadata access
- Simple voice model selection via dropdown
- Automated voice model packaging with projects
![:earth_africa:]( ":earth_africa:")
Supported Languages:
Supported Languages:![:us:]( ":us:")
English (United States) – 18 voice models, 23 qualities![:uk:]( ":uk:")
English (British) – 9 voice models, 11 qualities![:cn:]( ":cn:")
Simplified Chinese (简体中文) – 1 voice model, 2 qualities![:mexico:]( ":mexico:")
Spanish (Mexican / Español Mexicano) – 2 voice models, 2 qualities![:es:]( ":es:")
Spanish (European / Español Europeo) – 5 voice models, 5 qualities![:ru:]( ":ru:")
Russian (Русский) – 4 voice models, 4 qualities![:brazil:]( ":brazil:")
Portuguese (Brazil / Português do Brasil) – 2 voice models, 2 qualities![:portugal:]( ":portugal:")
Portuguese (Portugal / Português de Portugal) – 1 voice model, 1 quality![:de:]( ":de:")
German (Deutsch) – 8 voice models, 10 qualities![:fr:]( ":fr:")
French (Français) – 6 voice models, 7 qualities![:tr:]( ":tr:")
Turkish (Türkçe) – 3 voice models, 3 qualities![:poland:]( ":poland:")
Polish (Polski) – 4 voice models, 4 qualities![:it:]( ":it:")
Italian (Italiano) – 2 voice models, 2 qualities![:ukraine:]( ":ukraine:")
Ukrainian (Украї́нська мо́ва) – 2 voice models, 2 qualities![:andorra:]( ":andorra:")
Catalan (Català) – 2 voice models, 3 qualities![:czech_republic:]( ":czech_republic:")
Czech (Čeština) – 1 voice model, 2 qualities![:wales:]( ":wales:")
Welsh (Cymraeg) – 1 voice model, 1 quality![:denmark:]( ":denmark:")
Danish (Dansk) – 1 voice model, 1 quality![:greece:]( ":greece:")
Greek (Ελληνικά) – 1 voice model, 1 quality![:iran:]( ":iran:")
Farsi (فارسی) – 2 voice models, 2 qualities![:finland:]( ":finland:")
Finnish (Suomi) – 1 voice model, 1 quality![:hungary:]( ":hungary:")
Hungarian (Magyar) – 3 voice models, 3 qualities![:iceland:]( ":iceland:")
Icelandic (Íslenska) – 4 voice models, 4 qualities![:georgia:]( ":georgia:")
Georgian (ქართული ენა) – 1 voice model, 1 quality![:kazakhstan:]( ":kazakhstan:")
Kazakh (Қазақша) – 3 voice models, 3 qualities![:luxembourg:]( ":luxembourg:")
Luxembourgish (Lëtzebuergesch) – 1 voice model, 1 quality![:latvia:]( ":latvia:")
Latvian (Latviešu) – 1 voice model, 1 quality![:nepal:]( ":nepal:")
Nepali (नेपाली) – 1 voice model, 2 qualities![:belgium:]( ":belgium:")
Dutch (Belgium / Vlaams) – 2 voice models, 4 qualities![:netherlands:]( ":netherlands:")
Dutch (Netherlands / Nederlands) – 3 voice models, 3 qualities![:norway:]( ":norway:")
Norwegian (Bokmål / Nynorsk) – 1 voice model, 1 quality![:romania:]( ":romania:")
Romanian (Română) – 1 voice model, 1 quality![:slovakia:]( ":slovakia:")
Slovak (Slovenčina) – 1 voice model, 1 quality![:slovenia:]( ":slovenia:")
Slovenian (Slovenščina) – 1 voice model, 1 quality![:serbia:]( ":serbia:")
Serbian (Srpski) – 1 voice model, 1 quality![:sweden:]( ":sweden:")
Swedish (Svenska) – 1 voice model, 1 quality![:kenya:]( ":kenya:")
Swahili (Kiswahili) – 1 voice model, 1 quality![:vietnam:]( ":vietnam:")
Vietnamese (Tiếng Việt) – 3 voice models, 3 qualities
English (United States) – 18 voice models, 23 qualities
English (British) – 9 voice models, 11 qualities
Simplified Chinese (简体中文) – 1 voice model, 2 qualities
Spanish (Mexican / Español Mexicano) – 2 voice models, 2 qualities
Spanish (European / Español Europeo) – 5 voice models, 5 qualities
Russian (Русский) – 4 voice models, 4 qualities
Portuguese (Brazil / Português do Brasil) – 2 voice models, 2 qualities
Portuguese (Portugal / Português de Portugal) – 1 voice model, 1 quality
German (Deutsch) – 8 voice models, 10 qualities
French (Français) – 6 voice models, 7 qualities
Turkish (Türkçe) – 3 voice models, 3 qualities
Polish (Polski) – 4 voice models, 4 qualities
Italian (Italiano) – 2 voice models, 2 qualities
Ukrainian (Украї́нська мо́ва) – 2 voice models, 2 qualities
Catalan (Català) – 2 voice models, 3 qualities
Czech (Čeština) – 1 voice model, 2 qualities
Welsh (Cymraeg) – 1 voice model, 1 quality
Danish (Dansk) – 1 voice model, 1 quality
Greek (Ελληνικά) – 1 voice model, 1 quality
Farsi (فارسی) – 2 voice models, 2 qualities
Finnish (Suomi) – 1 voice model, 1 quality
Hungarian (Magyar) – 3 voice models, 3 qualities
Icelandic (Íslenska) – 4 voice models, 4 qualities
Georgian (ქართული ენა) – 1 voice model, 1 quality
Kazakh (Қазақша) – 3 voice models, 3 qualities
Luxembourgish (Lëtzebuergesch) – 1 voice model, 1 quality
Latvian (Latviešu) – 1 voice model, 1 quality
Nepali (नेपाली) – 1 voice model, 2 qualities
Dutch (Belgium / Vlaams) – 2 voice models, 4 qualities
Dutch (Netherlands / Nederlands) – 3 voice models, 3 qualities
Norwegian (Bokmål / Nynorsk) – 1 voice model, 1 quality
Romanian (Română) – 1 voice model, 1 quality
Slovak (Slovenčina) – 1 voice model, 1 quality
Slovenian (Slovenščina) – 1 voice model, 1 quality
Serbian (Srpski) – 1 voice model, 1 quality
Swedish (Svenska) – 1 voice model, 1 quality
Swahili (Kiswahili) – 1 voice model, 1 quality
Vietnamese (Tiếng Việt) – 3 voice models, 3 qualities![:video_game:]( ":video_game:")
Perfect for:
- Accessible game interfaces
- Dynamic NPC conversations
- Voice-driven tutorials and hints
- Procedurally generated content
- Localization solutions
- Assistive technologies
- Interactive storytelling
- Educational applications
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