Download v1 Rift VoiceBot Test (Virtual Patient ChatBot) made with Unity
v1 Rift VoiceBot Test (Virtual Patient ChatBot) made with Unity
v1 Rift VoiceBot Test (Virtual Patient ChatBot) made with Unity
Chatbot test in VR. The basic Windows Text-to-Speech voice is a bit robotic and facial blend-shape animation is also a little primitive, but overall a good proof of concept.

Uses natural language pro...
Chatbot test in VR. The basic Windows Text-to-Speech voice is a bit robotic and facial blend-shape animation is also a little primitive, but overall a good proof of concept.

Uses natural language processing (sends microphone input to Google Voice API). The returned text is forwarded to a ChatScript server which then provides responses based on a rule-based system of word/topic recognition. The response is then articulate by the speech synthesis engine, with the generated audio animating the character's facial rig.

As well as using more advanced speech synthesis engines (probably one of the Amazon Polly voice models) I'm improving eye/skin/hair shaders and subtle character movements like small involuntary eye saccades and head movements in response to player position. The medieval male model included in the scene highlights some of these refinements.

Another important area for improvement is changing to a streaming model for voice recognition. Currently a noticeable delay occurs between speaking and response. Voice input is also triggered manually, which works best in noisy environments, however I plan to work on an automatic sound level threshold for triggering input.

More info: /redirect?redir_token=LvIdRFvtxh8-kws90GQ8w9QPH1p8MTU1NTY0MjM5M0AxNTU1NTU1OTkz&v=5Ro9LknJRc0&q=http%3A%2F%2Fbaroquedub.co.uk%2Fportfolio%2Fprojects%2Fvirtual-patient-chatbot.php&event=video_description

https://github.com/ChatScript/ChatScript
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