Aleksander Sęk1, Brian C J Moore. 1. Institute of Acoustics, Adam Mickiewicz University, Poznań, Poland. as10008@cam.ac.uk
Abstract
OBJECTIVE: To implement a fast method for measuring psychophysical tuning curves (PTCs) for use in clinical applications, such as assessment of frequency selectivity and detection of dead regions in the cochlea. DESIGN: The method is based on that described by Sek et al (2005) and has been implemented in software that can be run on a PC with a good-quality sound card. In addition to the main narrowband noise masker, a lowpass noise masker can be generated to prevent detection of a distortion band corresponding to the simple difference tone. RESULTS: The software includes a routine for measuring the absolute threshold at the signal frequency and includes methods for estimating the frequency at the tip of the PTC. A PTC can typically be determined in about three minutes. A small amount of practice (two to three runs) may be required to achieve stable results. CONCLUSIONS: The software implementation allows PTCs to be measured quickly without a requirement for specialised equipment.
OBJECTIVE: To implement a fast method for measuring psychophysical tuning curves (PTCs) for use in clinical applications, such as assessment of frequency selectivity and detection of dead regions in the cochlea. DESIGN: The method is based on that described by Sek et al (2005) and has been implemented in software that can be run on a PC with a good-quality sound card. In addition to the main narrowband noise masker, a lowpass noise masker can be generated to prevent detection of a distortion band corresponding to the simple difference tone. RESULTS: The software includes a routine for measuring the absolute threshold at the signal frequency and includes methods for estimating the frequency at the tip of the PTC. A PTC can typically be determined in about three minutes. A small amount of practice (two to three runs) may be required to achieve stable results. CONCLUSIONS: The software implementation allows PTCs to be measured quickly without a requirement for specialised equipment.
Authors: Michael F Dorman; Philip Loizou; Shuai Wang; Ting Zhang; Anthony Spahr; Louise Loiselle; Sarah Cook Journal: Audiol Neurootol Date: 2014-07-02 Impact factor: 1.854
Authors: Frederic Marmel; Christopher J Plack; Kathryn Hopkins; Robert P Carlyon; Hedwig E Gockel; Brian C J Moore Journal: J Acoust Soc Am Date: 2015-05 Impact factor: 1.840