منابع مشابه
Frequency-warping in speech
In this paper we present results that indicate that the formant frequencies between di erent speakers scale di erently at di erent frequencies. Based on our experiments on speech data, we then numerically compute a universal frequencywarping function, to make the scale-factor independent of frequency in the warped domain. The proposed warping function is found to be similar to the mel-scale, wh...
متن کاملFrequency Warping for Speaker Adaptation in HMM-based Speech Synthesis
Speaker adaptation in speech synthesis transforms a source utterance to a target utterance that differs from the source in terms of voice characteristics. In this paper, we employ vocal tract length normalization, which is generally used in speech recognition to remove individual speaker characteristics, to speaker adaptation in speech synthesis. We propose a frequency warping approach based on...
متن کاملPitch Mean Based Frequency Warping
In this paper, a novel pitch mean based frequency warping (PMFW) method is proposed to reduce the pitch variability in speech signals at the frontend of speech recognition. The warp factors used in this process are calculated based on the average pitch of a speech segment. Two functions to describe the relations between the frequency warping factor and the pitch mean are defined and compared. W...
متن کاملFrequency warping based on mapping formant parameters
We propose a novel method of generating a frequency warping function by mapping formant parameters of the source speaker and the target speaker. Alignment and selection process are performed to ensure that the mapping formants can represent speakers’ difference well. This approach requires only a very small amount of training data for generating the warping function, which can greatly facilitat...
متن کاملSpeaker normalization based on frequency warping
In speech recognition, speaker-dependence of a speech recognition system comes from speaker-dependence of the speech feature, and the variation of vocal tract shape is the major source of inter-speaker variations of the speech feature, though there are some other sources which also contribute. In this paper, we address the approaches of speaker normalization which aim at normalizing speaker's v...
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ژورنال
عنوان ژورنال: IEEE Signal Processing Letters
سال: 2009
ISSN: 1070-9908
DOI: 10.1109/lsp.2009.2014096