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Playful determination of the speech intelligibility threshold

The AAST is a playful procedure that fits into the world of children and was developed by Prof. Frans Coninx. The automatic adaptive test enables an estimation of the speech intelligibility threshold (SVS) in children of kindergarten and preschool age within a very short time. The test is available in different languages and is very helpful for measurements of patients with migration background.

The advantages of AAST

  • Adaptive, speech audiometric test
  • Playful method to promote the attention and motivation of the children
  • Designed for children from 4 years of age for interactive determination of the speech intelligibility threshold for speech (SVS)
  • No linguistic feedback of the child necessary
  • Optionally via headphones or free field loudspeaker
  • Detection of hearing disorders that have remained unnoticed during speech development
  • Assessment of hearing impairment in background noise – also in connection with AVWS
  • Testing the effectiveness of hearing aid and CI fittings
  • Available in several languages
  • Short execution time (under 2 minutes)


How the test works...

The test is called and started by the audiometer via the OMA. The central parameters are set. The child can select the answers directly on its own monitor.

The test uses six two-syllable words from the child's vocabulary. These can be depicted well and their redundancy is comparable to short everyday sentences. Thus, the AAST is hardly dependent on language development problems in the vocabulary area.

The volume of the test stimuli is adjusted adaptively depending on the accuracy of the child's responses and is close to the speech intelligibility threshold. A test run usually takes less than 2 minutes. Standard values are available for children from 4 years of age. With the AAST, everyday speech intelligibility and problems caused by hearing impairment can be assessed.
This is used, for example, to assess whether a child can understand speech well enough at school.