ISTS – A Practical Acoustic Feedback Test For Hearing Aids?

International Speech Test Signal and Feedback   Background The International Speech Test Signal (ISTS) was developed to determine how speech is processed by modern hearing aids {{1}}[[1]] Holube, I., Fredelake, S., Vlaming, M. & Kollmeier, B. (2010). Development and analysis of an international speech test signal (ISTS). International Journal of Audiology, 49, 891-903[[1]].  The signal…

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ISTS – Measuring Advanced Digital Hearing Aids

ISTS – A New Measurement Standard Proposal Hearing aids are currently measured using stationary signals, which include sine wave  frequency sweeps and unmodulated noise signals.  These test signals allow for reproducible measurement conditions and are described in ANSI 3.22 {{1}}[[1]] American National Standards Institute (ANSI ). ANSI S3.22-2003. Specification of hearing aid characteristics. New York:…

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