G.711
Pulse Code Modulation
(64 kbps)
by Atlanta Signal Processors, Inc.

Software Overview

G.711 is a Pulse Code Modulation (PCM) standard. In Pulse Code Modulation systems, commonly used in 
public and private telephone networks, samples of an analog-speech waveform are encoded as binary 
words and transmitted serially, usually at a rate of 8,000 samples per second. The algorithm is 
included in the Elf DSP Application Developer's Toolkit as a reference for the other algorithms in 
the Toolkits.

Features and Benefits

•	Code is C callable, relocatable, and SPOX compatible

Processor and System Specifications

•	Program memory: 131 words
•	Data memory: 16 words
•	CPU loading (dynamic memory): < 3%
•	Sample rate:  8 kHz
•	Ready to run on the Elf DSP Platform from Atlanta Signal Processors
•	Portable to any TMS320C3x target platform

Usage Limitations or Performance Considerations

•	None

Algorithm Verification

•	Complies with the G.711 standard.

Availability

•	Written by Texas Instruments and available now through Atlanta Signal Processors.

Company Background and Contact Information

Atlanta Signal Processors was founded in 1981 by Ronald W. Schafer, Thomas P. Barnwell III, and 
Russell M. Mersereau, three Professors of Electrical Engineering at the Georgia Institute of 
Technology with over 80 years of experience in the field. The company has focused its efforts on 
developing tools for professional signal-processing design engineers and now offers digital 
signal-processing hardware and software products to DSP designers worldwide.

Contact:	Atlanta Signal Processors, Inc.
		1375 Peachtree St. NE, Suite 690
		Atlanta, Georgia  30309-3115
		(404) 892-7265
		Fax: (404) 892-2512
		e-mail: aspi@aspi.com