Title :
Minimum Mean-Squared-Error Quantization in Speech PCM and DPCM Systems
Author :
Paez, M.D. ; Glisson, T.H.
Author_Institution :
North Carolina State Univ., Raleigh, NC, USA
fDate :
4/1/1972 12:00:00 AM
Abstract :
The optimum (minimum mean-squared-error) and optimum uniform quantizing characteristics for Laplacian- and gamma-distributed signals are given in tabular form. The performance of these quantizers in real speech pulse-code modulation (PCM) and differential pulse-code modulation (DPCM) systems is investigated and compared with that obtained when the μ-law quantizing characteristic is used.
Keywords :
Amplitude modulation; Demodulation; Equations; Frequency; Phase change materials; Pulse modulation; Quantization; Signal analysis; Signal representations; Speech;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOM.1972.1091123
