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Updates: 10/30/2023: Added an "_" before the name of the saved voiced CPP file to avoid throwing an error when saving 10/11/2022: - Outputs now include CPP F0 in figure for single files, in output for batch mode - There is now an option to set the CPP peak search range, both for single files and multiple files ![Example of input form user can populate to set CPP peak search range minimum and maximum][1] Please cite: Heller Murray, E., Chao, A., & Colletti, L. A. (2022). A Practical Guide to Calculating Cepstral Peak Prominence in Praat. Journal of Voice. https://doi.org/10.1016/j.jvoice.2022.09.002 Details about how to download and use this CPP plugin can be found in this [Journal of Voice][2] article. Information can also be found [HERE][3] in the Preprint with instructions on downloading and using CPP plugin Cepstral Peak Prominence (CPP) is an acoustic measure of dysphonia recommended by an [ASHA expert panel][4]. A lower CPP value is associated with a more dysphonic voice. Although CPP offers a more ecologically valid measure of dysphonia that can be completed on running speech, it is important to acknowledge that differences in algorithm used to calculate CPP, stimuli used for analysis, and other person-related factors (e.g., fundamental frequency, sound pressure level) may impact CPP values. See [Watts and colleagues (2017)][5] for discussing of two popular programs used, ADSV and Praat. **One of the most important factors to consider when using CPP is consistency!!** Below we have made available our Praat scripts to calculate CPP with and without voice detection. As Praat is a free program and this script adapts to other open-source information, we hope this script will be helpful for both clinic and research. Furthermore, below you will find the 1) **preprint of our article submission outlining how to use and install the Praat CPP plugin**, 2) poster on this topic from Voice Foundation 2022, 3) downloadable file with all the CPP values for the subjects used in the Perceptual Voice Qualities Database [1]: https://files.osf.io/v1/resources/t5hrv/providers/osfstorage/63459686ec7f3f263df5fdac?mode=render [2]: https://www.sciencedirect.com/science/article/pii/S0892199722002752?dgcid=author [3]: http://osf.io/yvp4s [4]: https://pubs.asha.org/doi/full/10.1044/2018_AJSLP-17-0009 [5]: https://www.sciencedirect.com/science/article/pii/S0892199716302430
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