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Subjective Effects of Channel Transmission Errors on PCM and DPCM Voice Communication Systems,
BRITISH COLUMBIA UNIV VANCOUVER DEPT OF ELECTRICAL ENGINEERING
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Isopreference tests were used to study the subjective effects of channel transmission errors on computer-simulated PCM and previous-sample feedback DPCM voice systems. Numerically scaled isopreference contours were obtained and plotted on planes having as axes the number of quantization bits N and the bit error probability p of the binary symmetric transmission channel. Author
APPROVED FOR PUBLIC RELEASE