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dsPIC ? DSC ACOUSTIC ECHO
CANCELLATION LIBRARY
USER ’S GUIDE
Preface
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our web site
( www.microchip.com ) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the
document.
For the most up-to-date information on development tools, see the MPLAB ? IDE on-line help.
Select the Help menu, and then Topics to open a list of available on-line help files.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
dsPIC ? DSC Acoustic Echo Cancellation Library. Items discussed in this chapter
include:
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Document Layout
Conventions Used in this Guide
Warranty Registration
Recommended Reading
The Microchip Web Site
Development Systems Customer Change Notification Service
Customer Support
Document Revision History
DOCUMENT LAYOUT
This document describes how to use the dsPIC DSC Acoustic Echo Cancellation
Library. The document is organized as follows:
? Chapter 1. Introduction – This chapter introduces the dsPIC DSC Acoustic Echo
Cancellation Library and provides a brief overview of acoustic echo cancellation
and the library features. It also outlines requirements for a host PC.
? Chapter 2. Installation – This chapter provides instructions for installing the
library files and describes the contents of the source files, include files, demo files
and archive files.
? Chapter 3. AEC Demonstration – This chapter provides a hands-on
demonstration of acoustic echo cancellation in a working application.
? Chapter 4. Application Programming Interface (API) – This chapter outlines
how the API functions provided in the dsPIC DSC Acoustic Echo Cancellation
Library can be included in your application software through the API.
? 2004-2011 Microchip Technology Inc.
DS70134F-page 5
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