It's widely known that consonant voicing has an effect on the duration of the preceding vowel in English (i.e. [i:] is supposedly longer in than in ). Does anybody know of any study proving an effect (or lack thereof) of consonant voicing on the duration of the following vowel instead? (e.g. [I] in being longer or shorter than in as an effect of the voicing in d vs t?).
I do not know of a study, but I would think that this pronunciation is highly dependent on regional accents of the English speaker.
The post-vocalic effect is also known as pre-fortis clipping. We know it's clipping because 'fry' and 'fried' have more or less the same duration, but 'fright' is shorter. In my work, I have also observed that aspiration 'occupies' some of the duration of the vowel, such that vowels are shorter after voiceless stops. Also, I think it was Leigh Lisker at Haskins back in the 70s identified F1 transition duration as a cue to voicing - the voiced consonants produce longer F1 transitions, presumably because the aspirated ones obscure them.
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