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Waveform coding for digital telephony
Waveform codingdigital audio
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achieved Acoustics ADPCM algorithm amplitude analogue analysis applications audio automatic speech recognition bandwidth channel chapter coder coding coefficients communication complex components connected conversion decoder delay delta-sigma modulation digital filter distortion domain encoding error example Figure fileserver formant frequency function hidden Markov model IEEE IEEE Transactions implemented input signal integrated services interface interpolation ISDN kbit/s keyboard language linear modulation morph noise shaping noise-shaping oversampling PABX packet networks parameters pattern recognition performance phonemes pitch predictor problem processor produced protocol quantization quantizing distortion recognizer resonances ring sampling rate sentence sequence shown in Fig Signal Processing slot speaker spectral spectrum speech segments speech signal speech sounds speech synthesis spoken station structure sub-band sub-band coder switching syllables synthesis techniques template matching traffic transmission unvoiced values vector vocabulary vocal tract vowel waveform window window function word zero