In this paper, we describe the concept of music scene description and address the problem of detecting melody and bass lines in real-world audio signals containing the sounds of various instruments. Most previous pitch-estimation methods have had difficulty dealing with such complex music signals because these methods were designed to deal with mixtures of only a few sounds. To enable estimatio...

This paper proposes a noise-robust speaker verification method augmented by fundamental frequency (F0). The paper first describes a noise-robust F0 extraction method using the Hough transform. Then, it proposes a robust speaker verification method using multi-stream HMMs which fuse the extracted F0 and cepstral features. Experiments are conducted using fourconnected-digit utterances of Japanese...

The influence of consonant aspiration on the F0 contours of tones in Mandarin Chinese was tested in continuous speech by reference to a minimal pair of syllables, /ta/ and /tÓa/, which differ only in terms of aspiration. It was found that, consonant aspiration affects the fundamental frequency (F0) of the following vowel. The onset F0 of a tone is higher following unaspirated consonants than fo...

We propose a technique that associates the F0 of Japa-nese words with native-speaker perceptions of pitch accents. Up till now, computer-aided prosody learning systems that measure fundamental frequency (F0) have not mapped F0 values to perceptual thresholds of native speakers. Existing learning systems often instruct their students to fit F0 contours within a band designated by the system, but...

A detailed description of our text-independent speaker verification (SV) system, referred to as WCL-1, a participant in the one-speaker detection task of the 2003 NIST Speaker Recognition Evaluation (SRE) is presented. It is an improved version of our baseline system, which has successfully participated in the 2002 NIST SRE. In addition to the short-term spectrum represented by the Mel-frequenc...

Harmonic complex tones elicit a pitch sensation at their fundamental frequency (F0), even when their spectrum contains no energy at F0, a phenomenon known as "pitch of the missing fundamental." The strength of this pitch percept depends upon the degree to which individual harmonics are spaced sufficiently apart to be "resolved" by the mechanical frequency analysis in the cochlea. We investigate...

This paper presents the corpus-driven approach in building the computational model of fundamental frequency, or F0, for Lithuanian language. The model was obtained by training the HMM-based speech synthesis system HTS on six hours of speech coming from multiple speakers. Several gender specific models, using different parameters and different contextual factors, were investigated. The models we...

Seeing that speakers increase the intensity of their voice when speaking in loud noise (Lombard effect), this paper proposes a speech transformation approach to mimic this Lombard effect for improving the intelligibility of speech in noisy environments. The approach attempts to simulate the variations of duration, formant frequencies, formant bandwidth, fundamental frequency (F0), and energy in...

Cochlear implant (CI) users have been shown to benefit from residual low-frequency hearing, specifically in pitch related tasks. It remains unclear whether this benefit is dependent on fundamental frequency (F0) or other acoustic cues. Three experiments were conducted to determine the role of F0, as well as its frequency modulated (FM) and amplitude modulated (AM) components, in speech recognit...

A model is presented for the analysis and synthesis of low frequency human-like pitch deviation, as a replacement for existing modulation techniques in singing voice synthesis systems. We build on research taken from [1], in order to find the features of drift under selected conditions in singing. Fundamental Frequency ( f0) measurements are taken from vocalists producing a selected range of ut...