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NVIDIA’s latest tech makes AI voices more expressive and realistic

The express on Amazon’s Alexa, Google Assistant and other AI auxiliaries are far ahead of old-school GPS devices, but they still absence the patterns, cadence and other qualities that construct speech sound, well, human. NVIDIA has unveiled new the investigations and implements that can capture those natural lecture tones by letting you train the AI system with your own voice, the company announced at the Interspeech 2021 conference.

To improve its AI voice synthesis, NVIDIA’s text-to-speech research team developed a mannequin announced RAD-TTS, a prize introduction at an NAB programme pact competition to develop the most realistic avatar. The organisation accepts an individual to drill a text-to-speech model with their own voice, including the pacing, tonality, timbre and more.

Another RAD-TTS feature is spokesperson changeover, which tells a user deliver one speaker’s texts consuming another person’s expression. That boundary utters punishment, frame-level control over a synthesized voice’s pitch, period and energy.

Using this technology, NVIDIA’s researchers started more conversational-sounding voice narration for its own I Am AI video series use synthesized rather than human express. The strive was to get the narration to match the manner and vogue of the videos, something that hasn’t been doing well in countless AI narrated videos to date. The results are still a bit robotic, but better than any AI narration I’ve ever heard.

“With this interface, our video make could record himself speaking the video script, and then use the AI model to alter his speech into the female narrator’s voice. Using this baseline yarn, the producer could then direct the AI like a singer actor — nipping the synthesized speech to emphasize specific statements, and modifying the pacing of the narration to better express the video’s tone, ” NVIDIA wrote.

NVIDIA is strewing some of such research — optimized to run efficiently on NVIDIA GPUs, of course — to anyone who wants to try it via open source through the NVIDIA NeMo Python toolkit for GPU-accelerated conversational AI, may be obtained on the company’s NGC centre of containers and other software.

“Several of the prototypes are trained with tens of thousands of hours of audio data on NVIDIA DGX methods. Makes can fine tune any simulation for their employment cases, speeding up training utilize mixed-precision computing on NVIDIA Tensor Core GPUs, ” the company wrote.

Read more: engadget.com

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