In the phrase CCTV, closed circuit television; do we omit the -ed, and just say /kləʊz-sərkət-.../ in fast, connected speech. And, about the word "closed" itself, is it finished with an /zd/ or /st/ sound, when it comes alone?


The final -ed would be either omitted or reduced to a vestigial -t in normal speech. The elision between the /z/ and the /s/ can clearly be seen in this spectrum, where the vestigial t can (believe it or not) still be heard.

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I believe that the technical term for this is an unreleased consonant: you can find more about it here.

In normal speech, the word is pronounced /kləʊzd/, as can be seen in this spectrum:

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  • "The elision of the /z/ and the /s/" ← Did you mean to write something like "the elision between the /z/ and the /s/"? – snailplane Dec 3 '16 at 14:59
  • @snailplane, see this definition: en.oxforddictionaries.com/definition/elision I was thinking of definition 2: I can see that you are thinking of definition 1. You are probably right given that the context is phonetics. – JavaLatte Dec 3 '16 at 15:11
  • @JavaLatte Hi. where did you get these spectrums? – domino Dec 4 '16 at 23:38

In fast speech it certainly could be elided in the way you mention.

If pronounced correctly, it would have the /zd/ sound at the end. We don't have final obstruent devoicing in English.

  • 3
    We don't have phonological final obstruent devoicing, but we do have phonetic final obstruent devoicing :-) – Araucaria - Not here any more. Dec 3 '16 at 14:05
  • I respectfully disagree – D. Nelson Dec 3 '16 at 14:09
  • See here, for example. Or here. Or here. – Araucaria - Not here any more. Dec 3 '16 at 14:18
  • Oh, here we go. This is a nice simple page from the Speech Internet Dictionary. :-) – Araucaria - Not here any more. Dec 3 '16 at 14:21
  • @Araucaria Hi, I don't really understand the difference between 'phonological' and 'phonetic' in your statement. 'Phonetic' relates to the spoken language that people actually use in everyday life, 'phonological' relates to the standard speech sounds in theory, is that what u mean? And, by the way, where are u from? – domino Dec 4 '16 at 23:53

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