Czareck, first off, allow me to express a measure of amazement that you should be able grasp much of
anything at all from this sound clip! Bravo! You have a really good ear! Second, following several attempts, I finally managed to catch what the young child was saying. I now see two possibilities:
(1) She is saying "It isn't Teddy Bear" wherein, as discussed above, the object of our discussion is a personified toy -- a teddy bear -- to which the child has assigned the name Teddy Bear. In a similar manner, had she named her stuffed toy "Fluffy", two possibilities would exist (a) "It isn't Fluffy" in the sense that we have been discussing, or (b) "It isn't fluffy" wherein the word fluffy (non capitalised) is used as an adjective (no article required).
(2) She is saying "It isn't (a) teddy bear" wherein the indefinite article "a" is pronounced but only
barely vocalized . There is a
short gap in the sentence as she says "It isn't ... teddy bear" wherein she might have said "a" in a
barely audible manner
or, as an alternative,
this might an example of a glottal stop*.
*Glottal Stop - Wikipediahttps://en.wikipedia.org/wiki/Glottal_stopEDITED:
Tinkering.
