Introduction to Digital Speech Processing
Introduction to Digital Speech Processing highlights the central role of DSP techniques in modern speech communication research and applications. It presents a comprehensive overview of digital speech processing that ranges from the basic nature of the speech signal, through a variety of methods of representing speech in digital form, to applications in voice communication and automatic synthesis and recognition of speech. Introduction to Digital Speech Processing provides the reader with a practical introduction to the wide range of important concepts that comprise the field of digital speech processing. It serves as an invaluable reference for students embarking on speech research as well as the experienced researcher already working in the field, who can utilize the book as a reference guide.
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The Speech Signal
ShortTime Analysis of Speech
Homomorphic Speech Analysis
Linear Predictive Analysis
Digital Speech Coding
TexttoSpeech Synthesis Methods
Automatic Speech Recognition ASR
ˆx[n acoustic ADPCM algorithm amplitude analysis-by-synthesis applications autocorrelation function bandwidth basilar membrane bit rate block diagram CELP Chapter codebook coders complex cepstrum computation concatenation decoder deﬁned deﬁnition diﬀerence signal digital representation digital speech processing diphone discrete-time discussed eﬀects eﬃcient encoded equation excitation signal feature vectors ﬁlter ﬁlter bank ﬁrst ﬁxed formant frame glottal impulse response input language model linear predictive analysis linear system lowpass methods noise output parameters PARCOR phonemes pitch period predictor coeﬃcients produced quantization error quefrency range represented sampling rate segment sequence short-time analysis short-time energy shown in Figure signal processing sounds Speciﬁcally spectral spectrogram spectrum speech chain speech coding speech perception speech processing speech production speech signal speech synthesis speech waveform STACF STFT string system function tion unit selection unvoiced vocal tract vocal tract ﬁlter vocal tract system voiced speech word error rate word model z-transform zero zero-crossing rate