ABSTRACT
The term echo cancellation is used in telephony to describe the process of removing echo from a voice communication in order to improve voice quality on a telephone call. In addition to improving subjective quality, this process increases the capacity achieved through silence suppression by preventing echo from traveling across a network.



Two sources of echo have primary relevance in telephony:
acoustic echo and
hybrid echo.
Echo cancellation involves first recognizing the originally transmitted signal that re-appe ....etc

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Sir we are implementing this project. But only the part up to face detection is completed. Please send us the remaining coding and available documentation as early as possible.
Send Details on [email protected] ....etc

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1. VERSATILE AUTO CUT OFF UNIT
2. IC 555 AS ANALOG SWITCH FOR POSITIVE SIGNALS
3. DANCING LIGHTS / SOUND LEVEL INDICATOR
4. BATERY LEVEL INDICATOR
5. AUTOMATIC BATTERY SWITCHING FOR DIGITAL CLOCKS
6. CARRIER FAILURE INDICATOR
7. CRYSTAL CONTROLLED INVERTER
8. Communicating to 89S52 MCU through windows hyper terminal using RS-232
9. MANUAL VOLTAGE STABILIZER TO AN AUTOMATIC STABILIZER
10. IC FUZZ FOR GUITAR
11. MUSICAL DOOR BELL
12. PC based substation monitoring
13. VARIABLE SWITCHING POWER SUPPLY
14. Q MASTER FOR JAM SESSION
15. ....etc

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· A Three Motor Walking Robot. This three motor BEAM type walking robot is a lot more capable than the one motor walking robot above. The write-up for this project includes photos of the robot walking over a couple of fairly thick books.

· Speech Amplifier/Loudspeaker. A compact amplifier/loudspeaker powered by a 6 volt battery pack to make sure you are heard, here™s the circuit and some details.

· Battery Powered Guitar Practice Amplifier. Want to practice your guitar playing somewhere without power? The R ....etc

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Please send me details about embedded system to detect human beings buried alive during earthquake ....etc

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If anyone have an idea about the ER diagram of this project ..plz help and post it ....etc

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Pls tell me anchoring script in hindi for a devotional song ....etc

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Hi
I am Deepali i would like to get details on anchoring script for baby shower function in Hindi or Gujrati... I need a help.. ....etc

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Abstract:
Surface computing is the term for the use of a specialized computer GUI in which traditional GUI elements are replaced by intuitive, everyday objects. Instead of a keyboard and mouse, the user interacts directly with a touch-sensitive screen,
Microsoft Unveils first 'Surface' Computing model, recently which features a 30-inch diagonal square display built into a table configuration. It consists of a computer running a customized version of Windows Vista, a rear projection screen and five cameras that look through the screen to rec ....etc

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I want to implement a project on emotion based music player. I dont have any idea about the code n what is the software to implement the code.Please send me the code on my email id which is [email protected] ....etc

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abstract and circuit diagram for Location driven car music player. (Plays devotional songs near temples, shuts at home etc.) ....etc

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CUCKOO EGG: The term and the concept of cuckoo egg is quiet strange. When you download copy protected songs, you may come across cuckoo egg yourself. In the first 30 seconds of the downloaded song you may hear something other than the initial song which could be the cuckoo clock sound effects or a series of random sounds and noises that are free of any copyright ownership. this happens for not buying the cd in the first place ....etc

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