Accession Number:

ADA063989

Title:

Wideband Test and Evaluation.

Descriptive Note:

Technical note (Final),

Corporate Author:

DEFENSE COMMUNICATIONS ENGINEERING CENTER RESTON VA

Personal Author(s):

• Grahn,N. D.
• Vest,J. W.
• Belfield,W. L.

Report Date:

1978-09-15

Pagination or Media Count:

91.0

Abstract:

The performance of seven wideband 16 kbs or greater coders was tested and evaluated for comparison of recently developed speech coders with speech coders based on the continuously variable slope delta CVSD algorithm. The CVSD coder at 32 kbs was superior to the other coders at 16 kbs. Under nontactical conditions on some tests the APCQ speech coder was superior to the CVSD at 32 kbs. Under tactical conditons the CVSD coder was superior to other 16 kbs speech coders. Author

Descriptors:

• *VOICE COMMUNICATIONS
• *CODERS
• *DELTA MODULATION
• TEST AND EVALUATION
• ALGORITHMS
• OPTIMIZATION
• PERFORMANCE(ENGINEERING)
• TEST METHODS
• CODING
• BROADBAND
• SPEECH
• MODEMS
• TACTICAL COMMUNICATIONS
• INTELLIGIBILITY

Subject Categories:

• Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE