Real-Time Multi-Channel Audio Bridge

GL Communications Inc.conveyed today the availability of its product Real-Time Multi-Channel Audio Bridge that provides a bridge between T1 E1 timeslots and single or multi-channel sound card(s).Gaithersburg, MD November 12, 2011

Speaking to media persons, Mr. Vijay Kulkarni, CEO of the company said, ” The ability to send/receive from a sound card directly to T1 E1 timeslots is available once again for the latest HD cards, USB units and Universal Analyzers. And the application is called Real-Time Multi-Channel Audio Bridge. Listen to T1 E1 timeslots directly on your PC speaker or insert Microphone or Line In signals into T1 E1 timeslots. On legacy T1 E1 PCI cards, this application is called ‘Real-Time Multi-Channel Audio Driver’.”

He added, “Real-Time Multi-Channel Audio Bridge application provides a bridge between T1 E1 timeslots and single or multi-channel sound card(s). This allows users to insert speech onto T1 E1 timeslots using the PC microphone and listen to speech on T1 E1 timeslots using PC speakers or Headphones. This powerful optional application can as well interwork with other “sound card aware” applications like Goldwave, Cool Edit, Adobe Audition, Audacity, Matlab, LabView and many others. In such a case, third party “virtual sound card” software is required, e.g. VAC.”

The sound card i.e.

·Insert speech on T1 E1 lines using microphone connected to the sound card i.e., stream audio to channel/sub-channel from the sound card

·Listen/Drop speech on T1/E1 lines using PC speakers or Headphone using sound card - Stream audio from channel/sub-channel to sound card

Founded in 1986, GL Communications Inc. is a leading supplier of test, monitoring, and analysis equipment for TDM, Wireless, IP and VoIP (Voice over Internet Protocol) networks. Unlike conventional test equipment, GL's test platforms provide visualization, capture, storage, and convenient features like portability, remotability, and scripting.

GL’s VoIP and IP products generate / analyze thousands of calls and traffic simultaneously with traffic types just as frames, packets, voice files, digits, video, tones, noise, and fax. Nearly all codecs are supported including G.711, G.729, AMR, EVRC-A,B,C, GSM, iSAC, and many more. Additional features include visual analysis, real-time listening, and recording. The product line as well includes Ethernet / IP Testing capability that simulates and checks frame transport and throughput parameters of Ethernet and IP networks, including delay, errors and other impairments.

GL's Voice Quality Testing product line complements all of GL's products. Using ITU-standard algorithms, GL's VQT provides a widely accepted solution for assessing voice quality in the telecom industry. Voice Quality Testing across multiple networks are all available.

GL’s Wireless Products perform protocol analysis and voice quality assessment on GSM, CDMA, UMTS, and LTE (Long Term Evolution, latest standard in the mobile network technology) networks. Connections can be made to any wireless phone with automated call control, GPS mapping and real-time signal measurements.

The broadest range of simulation

GL’s Echo Canceller testing solutions provide the broadest range of simulation and analysis, including line and acoustic echo. GL’s compliance testing per G.168. G.167 and P.340 across TDM, IP, VoIP and Wireless networks is widely accepted in the industry.

GL’s wireless VQT solutions help assessing impairments to voice quality just as poor mobile phone quality, voice compression and decompression algorithms, delay, loss and gain in speech levels, noise, acoustic and landline echo, and other distortions are easily assessed and accurately measured.

Wide variety of communications facilities

GL’s Handheld data testers can test a wide variety of communications facilities and equipment including T1, fractional T1, E1, fractional E1, T3 and E3 modems, multiplexers, CSU, DSUs, T1 CSUs, DTUs, NTUs and TIUs and more. The testers provide convenience, economy, and portability for nearly any interface, including RS232, RS-422, RS-530, X.21, T1, E1, T3, E3, and many others.

GL’s Network Surveillance and Monitoring products include Probes for TDM, IP, VoIP, ATM, and Wireless networks. An open standards based approach provides a scalable, feature rich, real-time access to network characteristics. Centralized or distributed access, efficient transport and database loading allow compatibility with 3rd party and standards based monitoring systems.