Accession Number:

AD0754317

Title:

Subjective Effects of Channel Transmission Errors on PCM and DPCM Voice Communication Systems,

Descriptive Note:

Corporate Author:

BRITISH COLUMBIA UNIV VANCOUVER DEPT OF ELECTRICAL ENGINEERING

Personal Author(s):

• Yan,James
• Donaldson,Robert W.

Report Date:

1971-09-16

Pagination or Media Count:

10.0

Abstract:

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

Descriptors:

• *INFORMATION THEORY
• *VOICE COMMUNICATIONS
• PULSE CODE MODULATION
• PERFORMANCE(ENGINEERING)
• SIGNAL TO NOISE RATIO
• FEEDBACK
• BINARY ARITHMETIC
• ERRORS
• DIGITAL SYSTEMS
• WHITE NOISE
• CANADA

Subject Categories:

• Geology, Geochemistry and Mineralogy
• Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE