A vocoder-based speech synthesis system, named WORLD, was developed in an effort to
improve the sound quality of real-time applications using speech. Speech analysis …

Psychological scientists have become increasingly concerned with issues related to
methodology and replicability, and infancy researchers in particular face specific challenges …

Sensory organ damage induces a host of cellular and physiological changes in the
periphery and the brain. Here, we show that some aspects of auditory processing recover …

An algorithm is proposed for estimating the band aperiodicity of speech signals, where
“aperiodicity” is defined as the power ratio between the speech signal and the aperiodic …

External degradations in incoming speech reduce understanding, and hearing impairment
further compounds the problem. While cognitive mechanisms alleviate some of the …

Purpose To determine the relative importance of acoustic parameters (fundamental
frequency [F0], formant frequencies [FFs], aperiodicity, and spectrum level [SL]) on voice …

A spectral envelope estimation algorithm is presented to achieve high-quality speech
synthesis. The concept of the algorithm is to obtain an accurate and temporally stable …

A fundamental frequency (F0) estimator named Harvest is described. The unique points of
Harvest are that it can obtain a reliable F0 contour and reduce the error that the voiced …

Speech is an inherently noisy and ambiguous signal. To fluently derive meaning, a listener
must integrate contextual information to guide interpretations of the sensory input. Although …

The “cocktail party problem” requires us to discern individual sound sources from mixtures of
sources. The brain must use knowledge of natural sound regularities for this purpose. One …