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Therefore, parametric synthesis is often used when the corpus is small or a low footprint is required. On the other hand, parametric synthesis provides highly intelligible and fluent speech, but suffers from lower overall quality. Unit selection synthesis provides the highest quality given a sufficient amount of high-quality speech recordings, and thus it is the most widely used speech synthesis technique in commercial products. There are essentially two speech synthesis techniques used in the industry: unit selection and parametric synthesis. Recently, combined with speech recognition, speech synthesis has become an integral part of virtual personal assistants, such as Siri. Speech synthesis-the artificial production of human speech-is widely used for various applications from assistive technology to gaming and entertainment. This article presents more details about the deep learning based technology behind Siri’s voice. The resulting voices are more natural, smoother, and allow Siri’s personality to shine through. Starting in iOS 10 and continuing with new features in iOS 11, we base Siri voices on deep learning.
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He mispronounces many words and gets choppy.Siri is a personal assistant that communicates using speech synthesis. I use Text-to-Speech (TTS) all the time to help proof documents and Alex, while really good, needs work. Hopefully Apple will continue in this area. Now just Alex which is close to the IBM voices but has "his" faults. So as time went on nothing more than the stock "toy" and "computer sounding" offerings that Apple started with, Zarvox being the most understandable. I wondered why Apple hadn't integrated this technology since they were openly doing the Voice Commands and TTS? They had several male and female voices that were near perfect and at the time not used by M$. Then a couple of years later I stumbled on the Voice Demo page on the IBM website. We called it the "Drunken Dutchman" because that is what it sounded like. I use to be an IBM ISV/VAR and traveled to all the IBM conventions demonstrating an emergency dispatch system (now E911) that ran on their 3B hardware years ago and used a DEC Talk unit as the announcicator. I hope Apple will add a "Corrections" feature to the Speech preference pane to allow people to enter corrections, new words, and exceptions.īut it's still a home run for people who use text-to-speech! It's not perfect: he makes more pronunciation mistakes than Cepstral David, but that's to be expected for v.1.0. My favorite part is that Alex actually breathes audibly just before starting a new sentence! I couldn't figure out why it sounded so natural, then a friend pointed out the quick inhalation just before he reads each new sentence.
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) BTW, Cepstral's engine is fully compatible with Leopard too, in case you like their voices better - and they do have a much wider range than Apple does. It's leagues better than the Cepstral David voice I paid $30 for last year. Has anyone played around with the new (669MB!) Alex voice available in the text-to-speech section of the Speech preference pane? It's eerie how good it is: the first voice that's good enough for regular proofreading, though I think it sounds better a hair faster than the default speed.