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Google Launches More Realistic Text-To-Speech Service Powered By DeepMind's AI (theverge.com)

Google is launching a new AI voice synthesizer, named Cloud Text-to-Speech, that will be available for any developer or business that needs voice synthesis on tap, whether that's for an app, website, or virtual assistant. The Cloud Text-to-Speech service is being powered by WaveNet, software created by Google's UK-based AI subsidiary DeepMind. The Verge explains why this is significant: First, ever since Google bought DeepMind in 2014, it's been exploring ways to turn the company's AI talent into tangible products. So far, this has meant using DeepMind's algorithms to reduce electricity costs in Google's data centers by 40 percent and DeepMind's forays into health care. But, directly integrating WaveNet into its cloud service is arguably more significant, especially as Google tries to win cloud business away from Amazon and Microsoft, presenting its AI skills as its differentiating factor. Second, DeepMind's AI voice synthesis tech is some of the most advanced and realistic in the business. Most voice synthesizers (including Apple's Siri) use what's called concatenative synthesis, in which a program stores individual syllables -- sounds such as "ba," "sht," and "oo" -- and pieces them together on the fly to form words and sentences. This method has gotten pretty good over the years, but it still sounds stilted.

WaveNet, by comparison, uses machine learning to generate audio from scratch. It actually analyzes the waveforms from a huge database of human speech and re-creates them at a rate of 24,000 samples per second. The end result includes voices with subtleties like lip smacks and accents. When Google first unveiled WaveNet in 2016, it was far too computationally intensive to work outside of research environments, but it's since been slimmed down significantly, showing a clear pipeline from research to product.
The Verge has embedded some samples in their report to see how WaveNet sounds.

16 of 34 comments (clear)

  1. Nice try by duke_cheetah2003 · · Score: 2

    Given Google's history of taking things away, I would not build anything that depends on this. It will probably disappear in a year.

    1. Re:Nice try by ShanghaiBill · · Score: 1

      you can bet three letter agencies will be wanting to use it to covert all your, and I do mean all of 'YOU', spoken words into data mine able transcripts

      I'll take that bet, and win. RTFA, or RTFS, or even RTFH. This is text-to-speech, not speech-to-text.

    2. Re:Nice try by caseih · · Score: 1

      It's not just Google that does this. Amazon bought the Ivona TTS system and completely killed it for anyone other than users of the Kindle Fire who want to use the Ivona voices that ship with it.

      I have to admit Sallli is an amazing TTS voice on the Fire; sure wish I could use it on my Android phone. I've tried different ways of extracting it but haven't had any luck.

    3. Re:Nice try by rtb61 · · Score: 1

      What goes in one direction, goes in the other, like duhh, 1+1=2, 2-1=1.

      --
      Chaos - everything, everywhere, everywhen
  2. Kill the Cloud by Etcetera · · Score: 2

    Hopefully, the Tech Awakening we're experiencing in the US at a consumer level might trickle upwards into actual products as well.

    No way in hell I'm going to rely on something I have to use a remote service for, which is no doubt collecting and storing as many bits of data as possible. I don't need human-sounding-voice *that* badly that I can't wait for someone to figure out how to get 95% of this does and run on a few cores, or perhaps spare GPU capacity.

    1. Re:Kill the Cloud by pthisis · · Score: 2

      I mostly agree, though if the license on the generated audio is liberal enough I could see using this to create audio books of public domain texts in a crowd-sourced project. Feed the texts through (which, if distributed reasonably, shouldn't really be a significant privacy intrusion; the information's all out there already) and then save it for future use so it's still available even if the cloud service goes down.

      --
      rage, rage against the dying of the light
  3. Poorer Quality by DavenH · · Score: 2

    These voices are quite a far cry from the results of the original wavenet paper. I suppose a lot of computational tradeoffs happened, but these are Siri-level, not human level.

    1. Re:Poorer Quality by JohnStock · · Score: 1

      It's way beyond Siri. In fact non WaveNet powered Google Assistant is slightly better and less robotic than Siri

  4. I only need it to say one thing by darthsilun · · Score: 1

    I'm sorry Dave. I'm afraid I can't do that.

  5. Re:Next up: Celebrity voices by PPH · · Score: 1

    the Terminator

    Are you sure you know what you want?

    --
    Have gnu, will travel.
  6. Great! by PPH · · Score: 3, Funny

    I'll finally figure out how to pronounce 'doge'.

    --
    Have gnu, will travel.
  7. Re:This will be very useful by ShanghaiBill · · Score: 1

    This will be very useful, to telemarketers.

    T2V is already good enough for telemarketers. Their problem is not generating the voice, but semantic analysis of the replies.

    I get an occasional spam call that I am not 100% sure if it is a human or a robot. So I try to immediately force it off script by asking something like "What color underwear are you wearing?" Sometime the call is disconnected, sometimes it is forwarded to a human, and sometimes the robot tries to get back on script. But best of all, sometimes it is an actual human, who will sometimes hang up, sometimes give a flustered response, and sometimes say something creative like "I'm not wearing any underwear".

  8. FTFY by neo-mkrey · · Score: 1

    The Verge has embedded some samples in their report to hear how WaveNet sounds.

  9. Re:Intelligence services boasted 10 years ago abou by tinkerton · · Score: 1

    The NSA does speech to text so they can collect all voice calls and index them for textsearch and trigger words. THis is about text to speech.

  10. Things sure got better by tinkerton · · Score: 1

    If you check the competitor voice generation in the article it's also pretty good. Things have improved since Radiohead's depressing song 'Fitter Happier'
    https://www.youtube.com/watch?...

  11. pico tts by kbahey · · Score: 1

    Why 'cloud' when local works well?

    $ sudo aptitude install libttspico-utils

    $ pico2wave -w h.wav "Hello World"

    $ aplay h.wav