Query on babbling database

[Madalena Cruz-Ferreira]

Dear all,

Could anyone help with this query?
Many thanks!

Madalena

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>I have been doing research in information theory over the past
>several years and have been reading the volume "Phonological
>Development" by Dr.  Vihman. I am presently searching for a data base
>of baby babbling with enough signaling units (few hundred  phonemes, etc.).
>Is there
>any compilation of the number of different sounds that occur in baby
>babbling in general, with their frequency of occurrence tabulated? I'm
>also interested in the di-gram structure, the frequency of
>occurrence of pairs, if this has been complied
>anywhere. 
>I plan to calculate a 1st-order (Shannon) entropy, the probability of each event/signal >estimated from its frequency of occurrence divided by the total
>number of signals. 
>Although this is not the point of my paper, one could quantify the
>increase of conditional dependence (2nd-order entropy, the probability that phoneme j >will
>occur given that phoneme i has just occurred) with
>increased language learning with this approach, if this would be a
>useful number to determine. 
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Madalena Cruz-Ferreira
Dept. English Language and Literature
National University of Singapore
ellmcf at nus.edu.sg
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