In this article, a pitch tracking algorithm [named discrete logarithmic Fourier transformation-pitch detection algorithm (DLFT-PDA)], originally designed for human telephone speech, was modified for killer whale vocalizations. The multiple frequency components of some of these vocalizations demand a spectral (rather than temporal) approach to pitch tracking. The DLFT-PDA algorithm derives relia...

Many pitch trackers based on dynamic programming require meticulous design of local cost and transition cost functions. The forms of these functions are often empirically determined and their parameters are tuned accordingly. Parameter tuning usually requires great effort without a guarantee of optimal performance. This work presents a graphical model framework to automatically optimize pitch t...

The problem of pitch tracking of the singing voice in the presence of Indian percussive interference, specifically the tabla, is considered. To overcome the problems due to this particular type of interference, a pitch tracker is used that applies dynamic programming (DP) based smoothing on pitch estimates obtained from a spectral-domain pitch detection algorithm (PDA) that uses harmonic matchi...

In this paper, a new spectral/temporal method is described for robust pitch tracking for both high quality and telephone speech. A previous version of this algorithm was presented as YAAPT (Kasi and Zahorian, 2002) [10]. In the current paper, a novel method is presented for spectral pitch tracking, using nonlinear processing to partially restore the potentially missing fundamental frequency. A ...

The separation of speech from two simultaneous talkers is a problem of some practical and theoretical importance. We describe a prototype separation system based on harmonic selection using comb filters. Hermes’ subharmonic spectrum method is used to produce a number of (weighted) pitch estimates, with pitch tracks for the two talkers then found by constrained dynamic programming. The system ha...

This paper presents an introductory study of Mongolian intonation. Some preliminary results on the use of pitch in forming declarative utterances and in signalling focus are presented.

In this paper, we introduce a pitch detection algorithm that is particularly robust for telephone speech and prosodic modeling. The algorithm uses a logarithmically sampled spectral representation of speech, similar to that in the subharmonic summation approach [2]. Constraints for log F0 and ∆ logF0 are combined in a dynamic programming search to find an optimum pitch track. The search algorit...

A new pitch detection method based on auditory-perceptual evidences has been proposed. As an auditory model, basilar membrane characteristics are approximated by using high Q pole and low Q zero pair filter with logarithmic frequency quantization. As the perceptual model distortion such as the missing fundamental problem and unvoiced segment interpolation problem are discussed. As a criterion f...

In this paper, a method is proposed to generate pitch-contours for Mandarin speech synthesis. In this method, an HMM (hidden Markov model) is used to model the prosodic states implicitly stayed and a syllable’s pitch-contour is treated as an observation generated from a prosodic state. Such an HMM is called a syllable pitch-contour HMM (SPC-HMM). For training the SPC-HMM, we developed a feasibl...

In this paper, a method with sentence-wide optimization consideration is proposed to generate a Mandarin sentence's pitch-contour. The developed model is called the sentence pitch-contour HMM (SPC-HMM) due to its use of VQ (vector quantization) and HMM (hidden Markov model). To construct an SPC-HMM, the pitch-contours of the syllables from each training sentence are normalized on both time and ...