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ADPCM Last modified: Friday, June 22, 2001  Short for Adaptive Differential Pulse Code Modulation, a form of pulse code modulation (PCM) that produces a digital signal with a lower bit rate than standard PCM. ADPCM produces a lower bit rate by recording only the difference between samples and adjusting the coding scale dynamically to accommodate large and small differences. Some applications use ADPCM to digitize a voice signal so voice and data can be transmitted simultaneously over a digital facility normally used only for one or the other.   ADPCM Codecs Describes ADPCM codecs and provides download links to source code and patches. Related Categories Communications Related Terms pulse code modulation MP3 Players ADPCM Products Shop by Top Models: Archos 5 Wifi (60 GB) Digital Media Player 5 store offers from $152 - $330 Archos 705 Wifi (80 GB) Digital Media Player 4 store offers from $230 - $386 Archos 7 (160 GB) Digital Media Player 4 store offers from $210 - $425 Creative Technology Zen Mozaic Black (4 GB) Digital Media Player 8 store offers from $80 - $85 Creative Technology Zen Mozaic Black (2 GB) Digital Media Player 12 store offers from $56 - $98 Search: WebMediaBrands Corporate Info Legal Notices, Licensing, Permissions, Privacy Policy. Advertise | Newsletters | Shopping | E-mail Offers | Freelance Jobs Solutions Whitepapers and eBooks Articles: Build a More Agile Business with IBM IBM Articles: Virtualization Delivers a Dynamic Infrastructure Articles: IBM Offers Enhanced Measurement and Management for Energy Usage Articles: IBM Helps Transformation to an Information-Based Enterprise Microsoft Articles: Visual Studio 2010 Adobe Article: Adobe Helps PHP Developers Create Rich Internet Applications Adobe Article: Java Developers Finding a Home at Adobe Flex IBM Articles: A Smarter Business Needs Smarter Technology Intel Xeon Processor Increases Server Efficiency and Capabilities Intel Tech Brief: Automated Energy Efficiency for the Intelligent Enterprise Oracle Whitepapers - Innovation for IT Leaders Avaya Article: Communication-Enabled Mashups--Empowering Both Business Owners and IT Internet.com eBook: IT Manager's Guide to Social Networking Internet.com eBook: Get Ready for Windows 7 Microsoft Article: Expression Web 3--New Features for PHP Developers Whitepapers: Manage Your Business Infrastracture with IBM Whitepaper: Maximize Your Storage Investment with HP Internet.com eBook: Becoming a Better Project Manager Microsoft Article: Stress Free and Efficient Designer/Developer Collaboration MORE WHITEPAPERS, EBOOKS, AND ARTICLES Webcasts SAP Webcast: Crystal Reports Server--Do More. Spend Less. Webcast: Connecting PHP to Microsoft Technologies Video: Microsoft Partner Program Benefits Video: Windows Azure Debugging Tips SAP BusinessObjects Webcast: Unlock the Power of Reporting with Crystal Reports IBM Webcast: Speed Business Innovation with Reduced Cost and Risk Video: Deploy Applications on Windows Azure MORE WEBCASTS, PODCASTS, AND VIDEOS Downloads and eKits Download: Microsoft Visual Studio 2010 Beta 2 Downloads & Free Trials: Microsoft's New Efficiency Resource Center Get the Windows 7 SDK Free Trial: Red Gate SQL Backup Pro 6 Iron Speed Designer Application Generator MORE DOWNLOADS, EKITS, AND FREE TRIALS Tutorials and Demos Internet.com Hot List: Get the Inside Scoop on the Hottest IT and Developer Products All About Botnets MORE TUTORIALS, DEMOS AND STEP-BY-STEP GUIDES