Author's Rebuttal to Smits et al. (2018), “Comment on ‘Sensitivity of the Speech Intelligibility Index to the Assumed Dynamic Range’ by Jin et al. (2017)”

Purpose

The purpose of this letter is to refute the comments written by Smits, Goverts, and Versfeld (2018).

Method

Refutations to each issue including the fixed mathematical relationship between dynamic range (DR) and a fitting constant (Q value), deviating results for small DRs, and determination of Speech Intelligibility Index (SII) model parameters are described.

Results

Although Smits et al. (2018) correctly identified several issues, those comments do not diminish the results of the original article (Jin, Kates, & Arehart, 2017) in providing new insights for the SII.

Conclusions

Jin et al. (2017) clearly provided the impact of languages and DR on the SII, which was the main result of the study.

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