How to | Make the Wolfram System Speak

Starting in Version 7, the Wolfram System includes expression-to-speech functionality. In principle, any Wolfram Language expression can be translated in this way.

Apply the function Speak to make the Wolfram System speak:

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You can also make the Wolfram System speak by right-clicking a highlighted expression and choosing Speak Selection from the contextual menu.

If, instead, you would like to see a text version of the input, apply SpokenString:

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Using SpokenString gives you the output:

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Using HoldForm gives you the input:

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This is also true for Speak:

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SpokenString with HoldForm can be used on graphics as well:

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Naturally, Speak still works in this case:

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