Video to text

[finerdesigner]

I'm designing a circuit that needs a digital video signal converted to a digital audio signal and could use a part recommendation

 

[gophert]

I'm designing a circuit that needs a digital video signal converted to a digital audio signal and could use a part recommendation

When you say, digital video to digital audio, what do you actually mean? Your title "video to text" confuses me... Do you mean "pictures of words are converted to a spoken (audible) word?" Or video clips of text converted to a text file?

 

[Ramussons]

Pictures of "Text" converted to a Text file is Optical Character Recognition (OCR), and a whole lot of software, both Free and Paid, are available.
Conversion of pictures of "Text" to Audio involves a second software - Text to Speech, sometimes called a "Reader"