Noise Cancellation stops ambient room noise from being picked up by the microphones on the conference phone. Noise Cancellation is also known as Active Noise Control or Active Noise Reduction (ANR) or antinoise. It is process of prohibiting unacceptable sound. Sound made up of pulse in the air which can be express as wave. If a speaker emits a sound whose wave has the same amplitude and the exact opposite polarity to the original sound, the waves cancel out and the result is no sound at all.
During a conference call one of the challenge is to eliminate acoustical echo & delivering good sound quality.The term Echo Cancellation is used in telephony to explain the method of eliminating echo from a voice communication so that better voice quality will be recieve on phone calls.
Echo Cancellation can be defined by many ways, such as:-
ClearOne is a premier worldwide provider of excellent professional audio conferencing systems & other related products for audio, video & web conferencing applications. The integity, adaptability & performance of our absolute solutions save organizations time & money by creating familiar environment for productive & economical group communication.
ClearOne has a wide range of professional audio conferencing products which has powerful & high quality audio, that are the heart of every wellknown conferencing system. By selling 75000+ professional audio conferencing systems sold, ClearOne gained a reputation as the industry leader in high-end audio conferencing.ClearOne's professional audio conferencing products are highly developed & fully featured. Unique audio performance has made ClearOne the acknowledged best choice for boardrooms, convention centers, distance learning facilities, courtrooms and other multi-use conference rooms.
ClearOne's AccuMic VC and PC are true plug-and-play echo and noise canceling microphones that provide superior audio pickup for video and computer-based conferencing.
For web conferencing applications, AccuMic PC is a perfect complement. Most PCs don't come with any type of microphone, and typical inexpensive PC microphones deliver poor audio quality to the far end. AccuMic PC provides patented ClearOne audio processing
Making all the long distance phone calls you want for one low price! Many broadband Internet providers are touting new services to make long distance bills a thing of the past. Companies are foregoing traditional telephony service and opting to go with newer services that use network technologies to provide telephone service. How are these things possible? Yes we can say it is possible by using ClearOne VoIP speaker phone.
Hi Everybody,
I think you should Check out Jajah
Its Web-activated telephony in a click. no headset, no download, no installation
use your normal phone (landline & mobile)
Rates
USA (landline & mobile): 0.1500 USD/min
China (landline & mobile): 0.1540 USD/min
Regards,
Sachin Palewar
Palewar Techno Solutions
Pocket PC & Mobile Software Development
Nagpur, India
Skype offers free calling
Skype just launched a FREE calling for its US users to call within US & Canada. Yes, you heard me right, FREE. Local landline calls (i think) within the US are generally free, adding mobile within that takes it to another dimension !
Got a WIFI / 3G enabled PDA with skype (though very very few such devices are actually available and sold) and you have an almost nill telephone bill for local calling.
Though skype will never be able to pull that off in India & some other countries which desperately need these kind of facilities, it will be another telecom revolution if such a facility is indeed available. Imagine calling your friends anywhere across the world for RS 1 for 3 minutes (Rs 20 is the standard browsing charge for a high quality broadband at a net centre) from India !..
This story came out a couple of days ago on Reuters. There's certainly some tough times coming for mainstream telcos.....
Phone users closer to mobile internet calls
Patrick