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Old 06-06-2017, 02:13 AM   #14
tomsem
Grand Sorcerer
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Posts: 6,955
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Join Date: Apr 2009
Location: USA
Device: iPhone 15PM, Kindle Scribe, iPad mini 6, PocketBook InkPad Color 3
Quote:
Originally Posted by knc1 View Post
The increase in RAM size has nothing at all to do with the increase in performance.
The devices use a different computer, running at a significantly higher speed.
Check the technical documents on both part numbers, you'll see where the improvement comes from.

Kindles have done TTS for many models prior to those you have.
And we have an add-in that gives the KT speaker independent voice control of the device.
The earlier devices where not limited by the amount of RAM on board.
I'm not sure which Paperwhites you are comparing. PW2 and PW3 have the same 1GHz processor AFAICT, but the latter has more pixels to manipulate. Both would be faster than the 800MHz PW1, of course. I would think PW3 is faster than PW2 for some things at least (like PDF viewing), because it has more RAM. But I have not compared this myself.

The requirement for high quality voice synthesis was the main driver for increased RAM, as the Ivona voice requires this. The voice on the 7/8th gen kindles is much better than TTS on previous Kindles. Note that it will play back at speed increments between .66x and 4x.

But I would not say VoiceView is 'TTS'. It is a screen reader, designed for folks with visual impairments, and a bit annoying to use for the rest of us. In fact Kindle operates with a reduced feature set when in VoiceView mode.
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