View all newsletters
Receive our newsletter - data, insights and analysis delivered to you
  1. Technology
February 2, 1998

PICTURETEL PATENTS AUDIO TECHNOLOGY

By CBR Staff Writer

Andover, Massachusetts based videoconferencing specialist, PictureTel Corp, has received two patents for its audio technology. The first covers PT724, a fixed-bit-rate speech encoder and decoder and the second covers the PowerMic, a 6-inch wide table-top device that houses a high quality microphones for group videoconferencing systems. The PowerMic is standard on PictureTel group videoconferencing systems. It works by ‘listening’ to the speaker and electronically steering a directional composite beam in the users direction, so that audio can be heard more clearly, without background noise from other directions. The PowerMic reduces noise by up to 12 dB with PictureTel’s noise suppression technology, according to PictureTel. PT724 is PictureTel’s audio compression algorithm. It enables audio to be compressed at 24 kbps compared to other systems have a compression rate of 48 kbps. This enhances video quality by freeing 30% more bits to be available for video compression.

Content from our partners
Rethinking cloud: challenging assumptions, learning lessons
DTX Manchester welcomes leading tech talent from across the region and beyond
The hidden complexities of deploying AI in your business

Websites in our network
Select and enter your corporate email address Tech Monitor's research, insight and analysis examines the frontiers of digital transformation to help tech leaders navigate the future. Our Changelog newsletter delivers our best work to your inbox every week.
  • CIO
  • CTO
  • CISO
  • CSO
  • CFO
  • CDO
  • CEO
  • Architect Founder
  • MD
  • Director
  • Manager
  • Other
Visit our privacy policy for more information about our services, how Progressive Media Investments may use, process and share your personal data, including information on your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.
THANK YOU