Preschool evaluation is crucial because it gives teachers and parents
influential knowledge about children's growth and development. The COVID-19
pandemic has highlighted the necessity of online assessment for preschool
children. One of the areas that should be tested is their ability to speak.
Employing an Automatic Speech Recognition(ASR) system is useless since they are
pre-trained on voices that are different from children's voices in terms of
frequency and amplitude. We constructed an ASR for our cognitive test system to
solve this issue using the Wav2Vec 2.0 model with a new pre-training objective
called Random Frequency Pitch(RFP). In addition, we used our new dataset to
fine-tune our model for Meaningless Words(MW) and Rapid Automatic Naming(RAN)
tests. Our new approach reaches a Word Error Rate(WER) of 6.45 on the Persian
section of the CommonVoice dataset. Furthermore, our novel methodology produces
positive outcomes in zero- and few-shot scenarios.Comment: 8 pages, 5 figures, 4 tables, 1 algorith