Freeware - Sample Science Virtual Vocaid VSTi Plugin

https://samplescience.gumroad.com/l/virtualvocaid

Virtual Vocaid is a software rendition of Texas Instruments' Vocaid, a vocal assistance device created for individuals with speech impairments. It accurately reproduces the distinct synthetic speech of the iconic astrophysicist Stephen Hawking. The software can produce all feasible combinations of words, letters, and numbers generatable by the original device. Sound manipulation is facilitated through integrated ADSR amplitude envelopes and four DSP effects. Additionally, the software incorporates a multi-LFO feature, enabling modulation of pitch, pan, or amplitude. The sound library is categorized into sections such as alphabet, bedside, games, numbers, and telephone, ensuring comprehensive usability.