By Chin-hue Lee, Haizhou Li, Lin-shan Lee, Ren-hua Wang, Qiang Huo
After many years of study job, chinese language spoken language processing (CSLP) has complicated significantly either in sensible know-how and theoretical discovery. during this ebook, the editors offer either an creation to the sector in addition to special examine issues of their options in numerous parts of CSLP. The contributions characterize pioneering efforts starting from CSLP ideas to applied sciences and functions, with each one bankruptcy encapsulating a unmarried challenge and its strategies.
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In summary, human speech processing is a closed-loop control in which articulatorily-induced auditory images and sensory-guided motor execution communicate in the brain during speech. Due to this linkage, humans have a robust capability to adapt them in adverse environments and to extract the relevant linguistic and paralinguistic information. Many engineering techniques Speech Analysis: The Production-Perception Perspective 19 for analyzing speech have been motivated, directly or indirectly, by the speech production and/or perception mechanisms discussed in this section.
The bandwidths normally are chosen to increase with center frequency, thus following decreasing human auditory resolution. , having equally-spaced, fixed bandwidths below 1 kHz, then logarithmic spacing at higher frequencies. Such a filter-bank analysis tries to simulate very simple aspects of the human auditory system, based on the assumption that human signal processing is an efficient way to do speech analysis and recognition. Since the inner ear apparently transfers information to the auditory nerve on a spectral basis, the filter banks discussed above approximate this transfer quite roughly.
A uditory-Motivated Speech Analysis Other speech analysis methods go further than filter-bank analysis in the hope that improved approximation to perception mechanisms may occur. Many of these alternative approaches use auditory models where the filtering follows that found in the cochlea more precisely. One example of auditory-motivated analysis is that of modulation spectrogram, which emphasizes slowly-varying speech changes corresponding to a rate of approximately 4 per second. Such 250 ms units conform roughly to syllables, which are important units for perceptual organization.
Advances in Chinese Spoken Language Processing by Chin-hue Lee, Haizhou Li, Lin-shan Lee, Ren-hua Wang, Qiang Huo