How to find fundamental frequency on praat11/12/2023 It’s particularly difficult to make speaker identification because of disguised speech which is the common check materiel form in judicial speech testing field, and electroacoustic camouflage is a typical individual speech camouflage pattern. factors are different in judicial speech testing process, that speaker fundamental frequency is prone to some degree of variation, so the fundamental frequency data has not comparability. Since every person has different compass, and check material is easy to camouflage, channel and voice extraction methods, etc. The pitch difference will not change tone, but the pitch change will change tone. The results show that the fundamental frequency before and after voice change exists a linearity relationship, we can realize speaker identification in electroacoustic disguised speech field through comparing Chinese pitch pattern.įundamental frequency as one important acoustics character in speech check field has indispensable application value about speaker identification work. Aiming at the electroacoustic disguised voice, we get fundamental frequency variation rule before and after voice change of multiple corpuses by analyzing map and data. Keywords: Disguised Voice Pitch Pattern Normalization Speaker IdentificationĬamouflage voice is the common check material form in judicial voice testing field that brings about many difficulties to speaker identification. Received Novemrevised Januaccepted January 10, 2013 This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. China Criminal Police University, Shenyang, ChinaĮmail: © 2013 Hongbing Zhang.
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