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AES Engineering Briefs Forum
Automated Pure-Tone Audiometry Software Tool with Extended Frequency Range
In research institutes and other areas it is necessary to check the hearing of test subjects for listening tests (e.g., for assessing the quality of audio processing algorithms, etc.) by measuring pure tone audiograms. Often, neither a necessary skilled operator nor a special audiometer for high frequencies (>8kHz, important for the evaluation of a lot audio processing algorithms) are available. As an alternative, a software for automated audiogram measurements is presented here. This new kind of software runs on a standard PC with a high-quality sound card and audiological headphones and is operated by the test subject him/herself (self-screening). The implemented adaptive procedure allows fast standard audiogram measurements also for high frequencies up to 16 kHz. The challenges with respect to dynamic range and calibration are discussed.
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