According to the experimental statistics, when the compression rate (m/n) is above 5%, the salient information of speech can be captured, and acceptable reconstruction quality is derived with the K L incoherent dictionary.
Importantly, the tone had a constant intensity and a linear spectral profile, and thus lacked the species-specific amplitude envelope and formants that are typically very salient features of speech and nonhuman primate vocalizations [37], [38], [39], [40].
Biologically salient sounds, including speech, are rarely heard in isolation.
The findings suggest that more classroom focus on continuous speech, rich in salient prosodic L2 features and delivered at whole-text level is important in developing child L2 knowledge.
We selected melodic contour as the dimension of interest because it is an important characteristic of speech and probably the most salient feature of music for infants [e.g., 67].
Along this line, it has been hypothesized that early in life those features that are more salient might generally be weighted strongest in speech perception (Nittrouer and Lowenstein 2009).
The auditory deficits in these cases have not been systematically characterized; however, the available evidence suggests that most have a clinical syndrome aligned with PNFA, comprising speech production failure with variably salient accompanying features, including dysprosody, dysarthria, working memory impairment, parietal signs and behavioural disturbance.
In consequence, the presence of a harmonic series is a salient feature of human vocalizations and essential to human speech and language.
Many previous studies used human speech syllables, which may not be salient to all animal species.
