Subject: Anti-aliased L-F model and its application to an educational tool for speech science From: Hideki Kawahara <hideki.kawahara@xxxxxxxx> Date: Tue, 4 Aug 2015 13:46:52 +0900 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Dear List, I have added a new interactive tool to the page "Matlab realtime speech tools," which was announced to this list about a year ago. The tool provides interactive environment for exploring relations between, vocal tract shape, transfer function, pole locations of the transfer function, LSF (line spectrum frequencies), F0, vibrato, glottal source characteristics (based on the L-F model) and generated speech sounds. Everything is written in Matlab and runs on Mac and Windows (R2013b and R2015a). The tool is based on technologies up to 1990s except for the closed form representation of the anti-aliased L-F model, which was presented at a technical meeting of IEICEJ, on 3rd August, 2015. The Matlab code and compiled applications of the tool, which do not require Matlab license are liked below. http://www.wakayama-u.ac.jp/~kawahara/MatlabRealtimeSpeechTools/ Have fun! PS: Useful direct links are listed below. Presentation slide http://www.wakayama-u.ac.jp/~kawahara/MatlabRealtimeSpeechTools/KawaharaIEICETREA08.pdf Quick start movie (6 minutes, 60MB) http://www.wakayama-u.ac.jp/~kawahara/MatlabRealtimeSpeechTools/vtToSoundLFQuickTour.mov Link to the technical report: Kawahara, H., Sakakibara, K., Banno, H., Morise, M., Toda, T., and Irino, T., "Aliasing reduction in L-F model implementation for an interactive tool applicable to speech science education," IEICE Technical Report, EA2015-10, pp.1-6 (2015-08). http://www.wakayama-u.ac.jp/~kawahara/MatlabRealtimeSpeechTools/EA2015-10.pdf PS: I also found that this tool is useful to correct some of my basic misunderstandings. - --------- Hideki Kawahara, Emeritus professor, Wakayama University 930 Sakae-dani, Wakayama, Wakayama, 640-8510 Japan http://www.sys.wakayama-u.ac.jp/~kawahara/index_e.html