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reading is essentially a process of translation of textual sequences into their phonetic representations

spoken word thus play a fundamental role in reading acquisition

highly accurate automatic speech recognition (ASR ) systems exist for many languages but they are still strongly biased towards accurate processing of adult voices

HOWEVER: in reading acquisition or reading fostering scenarios one deals with speakers whoseutterances of sequences-to-be-read exhibit peculiar characteristics

It is generally believed that acquisition of reading skill(s) can be fostered (resp. inhibited) by  learner’s exposure to appropriate (resp. inappropriate) social, pedagogic and instrumental context. It is also believed that well-designed digital tools may also help children learn how to read.

As of 2023, there exists no publicly available ASR model which could accurately and reliably process child speech.

In our IHIET 2023 article, we introduce two innovations with which the problem can be partially bypasssed in context of digitally supported reading acquisition app:

  1. Transformation of a generic ASR problem into a sort of extended multi-class classification problem by means of extending a generic acoustic model with a domain-specific, minimalist language model (“scorer”).
  2. Human-machine peer learning (HMPL) whereby the artificial utterence-processing tutor U incrementally and gradually adapts its parameters to a particular learner, a human individual I.

In concrete terms, we have shown that after three sessions focusing on acquisition of grapheme-vowel and CV-bigrapheme correspondences had lead, in case of one particular learner, to decrease of WER from 96% to 48%.

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