Google claimed that "Tacotron 2" can detect from context the difference between the noun "desert" and verb "desert" and alter its pronunciation accordingly.

In a major step towards its "AI first" dream, Google has developed a text-to-speech artificial intelligence (AI) system that will confuse you with its human-like articulation.
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The tech giant's text-to-speech system called "Tacotron 2" delivers an AI-generated computer speech that almost matches with the voice of humans, technology news website Inc.com reported. 

At Google I/O 2017 developers conference, company's Indian-origin CEO Sundar Pichai announced that the internet giant was shifting its focus from mobile-first to "AI first" and launched several products and features, including Google Lens, Smart Reply for Gmail and Google Assistant for iPhone.

According to a paper published in arXiv.org, the system first creates a spectrogram of the text, a visual representation of how the speech should sound. 

That image is put through Google's existing WaveNet algorithm, which uses the image and brings AI closer than ever to indiscernibly mimicking human speech. The algorithm can easily learn different voices and even generates artificial breaths.

"Our model achieves a mean opinion score (MOS) of 4.53 comparable to a MOS of 4.58 for professionally recorded speech," the researchers were quoted as saying. 

On the basis of its audio samples, Google claimed that "Tacotron 2" can detect from context the difference between the noun "desert" and the verb "desert," as well as the noun "present" and the verb "present," and alter its pronunciation accordingly. 

It can place emphasis on capitalised words and apply the proper inflection when asking a question rather than making a statement, the company said in the paper. 

Meanwhile, Google's engineers did not reveal much information but they left a big clue for developers to figure out how far they have come in developing this system.

According to the report, each of the '.wav' file samples has a filename containing either the term "gen" or "gt." 

Based on the paper, it's highly probable that "gen" indicates speech generated by Tacotron 2 and "gt" is real human speech. ("GT" likely stands for "ground truth," a machine learning term that basically means "the real deal".)

Scientists have developed the world's first artificial intelligence politician, that can answer a person's queries regarding local issues such as policies around housing, education and immigration.

The virtual politician, called SAM, was created by Nick Gerritsen, a 49-year-old entrepreneur in New Zealand.

"There is a lot of bias in the 'analogue' practice of politics right now," said Gerritsen.

"There seems to be so much existing bias that countries around the world seem unable to address fundamental and multiple complex issues like climate change and equality," he said.

The AI politician is constantly learning to respond to people through Facebook Messenger as well as a survey on its homepage. While Gerritsen acknowledges that humans biases can creep into algorithms, he said that he does not view bias as just a challenge to technology solutions.

While the system is not perfect, it may still help bridge the growing political and cultural divide in many countries, 'Tech In Asia' reported.

By late 2020, when New Zealand has its next general election, Gerritsen believes SAM will be advanced enough to run as a candidate. However, it is not legal for AI to contest elections.
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"SAM is an enabler and we plan to operate within existing legal boundaries," Gerritsen said.