Broadcast News

Bookmark and Share
20/02/2019

Vortex Communications Exhibits CallMe IP Audio Codecs

News Image
Vortex Communications has just returned from Exhibiting at the European Radio Show in Paris which claims to be the biggest Show dedicated to Radio in the world. Their CallMe low-cost IP Audio Codecs proved to be something of a "hit" providing a unique simple and low-cost way to get Guests, Expert Contributors and Reporters "on-air".
 
For more than 30 years, Radio has been a passion for Vortex Communications and its latest range of IP Audio Codecs still provide leading-edge solutions for Broadcasters. 
 
Since the 1980s, Vortex has been heavily committed to Radio with our first major order producing more than a thousand audio amplifiers and equalizers on Eurocard for the BBC World Service update of Bush House Control Room.  Every signal that came into and went out of the building passed through at least two of our amplifiers which provided sterling service until the BBC moved out in 2012 with, as it turned out, no failures over the entire period.
 
Since our beginnings, Vortex has been working with Comrex who specialise in sending high quality sound over public networks. The first products were Frequency Extenders that moved the frequency of the programme sound to fit into the telephone band of 300Hz to 3.4kHz, up-shifting by 250Hz at the sending end and downshifting at the receiving end thus providing an extra 2½ octaves at the lower frequencies – thus restoring the "weight of the sound" - at the expense of 1/10th octave at the top end. This was further developed into a 2-line and 3-line system where the programme audio was split into bands and sent over a number of telephone lines. BBC Johannesburg was linked to London using this technology and Capital Radio used two pairs for their "beach party" every summer, offering 5kHz audio using 2x telephone lines. Not bad for "nearly free".

This moved on through the early 1990s with ISDN when as part of an automation project, we developed our own "Baby Blue" Layer-II codec that offered 11kHz over 64kbps and some of these too are still in use today – though as we all know, ISDN itself is going away. Then taking advantage of the latest modem and DSP technology and more powerful audio compression algorithms came Comrex's Hotline – a POTS codec – that provided 10kHz over the Plain Old Telephone System (PSTN) which further developed to the Vector and Matrix offering 15kHz. With the addition of a GSM Module and battery operation - and even higher data compression - the first truly portable codec arrived offering 7.5kHz using a mobile network "free of wires".

And so to the present; Comrex is the world leader in IP Internet Audio Codecs for Outside Broadcast and manufactures the industry-standard ACCESS-NX which multi-streams low-delay high-quality live audio using the public internet. Literally thousands are in daily use here in the UK alone and the portable is known as "the Radio Car in the palm of your hand". 
 
As an add-on for our customers, we ourselves developed our own CallMe Click-and-Connect cloud codec that lets stations put guests and indeed reporters On-Air without the need for them to own their own codec or download special software. Originally developed to work with the huge installed base of ACCESS and BricLinks, we found that many smaller stations could not afford even the cheapest full-blown codec we developed CallMe-T (as in ET phone home) as a low-cost hardware back-end for CallMe Click-&-Connect. This range of low-cost IP codecs has now expanded to include CallMe-TR which has "quick-dial" buttons, making it an ideal for field use as an add-on for the large number of ISDN Mixers in use today, so that they can work over IP.  The latest addition of USB Audio allows direct connection of an external sound card, mixer or headset providing an ideal "Home Studio" solution for Journalists and Web Radio Stations. 

www.vtx.co.uk
VMI.TV Ltd

Top Related Stories
Click here for the latest broadcast news stories.

11/11/2016
What Is The Future For Immersive Audio?
Peter Poers, Managing Director at Jünger Audio, looks at production efforts versus consumer experience. Introduction Along with the evolution of highe
06/05/2014
Digigram at BroadcastAsia2014
At BroadcastAsia2014, Digigram has announced it will feature "a complete range of products designed to address the requirements of all applications an
18/03/2014
Digigram Announces NAB Lineup
At this year's NAB Show, Digigram is to feature a complete range of products designed to "address the requirements of all applications and budgets". T
05/01/2017
Digigram Brings Product Line To BES EXPO 2017 

Digigram has announced that it will demonstrate its product range at BES EXPO 2017, at it's partners Technomedia Solutions' stand. The demonstration w
21/04/2023
Parabolic Deploys Cleanfeed To Re-Record High Qulaity Audio
Audio post production facility Parabolic is using Emmy Award-winning Cleanfeed to re-record high quality audio, in real time, from anyone and from any
21/04/2023
DHD TX2 Ultra-Compact Multitouch Audio Production Mixer To Debut At MPTS
The DHD TX2 ultra-compact multitouch audio production mixer will make its UK exhibition debut at the Media Production & Technology Show (MPTS), Olympi
06/08/2008
Tieline Codecs Broadcast Live Around The Globe From The Beijng Games
Leading codec manufacturer Tieline Technology has announced that a number of high profile broadcasters are using its Commander and i-Mix audio codecs
18/09/2018
Vortex Unveiling CallMe Cloud Codec & CallMe-T Audio Codecs Upgrades
Vortex is introducing ground-breaking enhancements to its CallMe Cloud Codec and low-cost CallMe-T audio codecs at IBC. A couple of years ago, Vortex
20/03/2014
Digigram Releases New NTP
Digigram has announced the release of a new Network Time Protocol (NTP) feature for the company's IQOYA *LINK, IQOYA *LINK/LE, and IQOYA *SERV/LINK IP
12/04/2019
Vortex Introduces SmartStream™ To Its CallMe Low-Cost IP Audio Codecs
Vortex introduced SmartStream™ to its CallMe low-cost IP Audio Codecs at NAB 2019 in Las Vegas and demonstrates CallMe Analytics Server data for Live
28/07/2023
DHD audio Unveils XS3 Core Audio Processor
DHD audio has announced a new addition to its modular range of audio studio equipment and systems. The XS3 core audio processor supports up to 20 ster
12/04/2023
Audio-Technica's BP3600 Immersive Audio Microphone Now Available
Audio-Technica has announced scheduled availability in Europe and the UK for its recently launched BP3600 Immersive Audio Microphone. A premium broadc
31/03/2023
Digital Audio Denmark Introduces AX Center Thunder|Core Audio Interface
Digital Audio Denmark's new AX Center is a dedicated Thunderbolt modular audio interface with dual mic and instrument inputs, dual headphone and monit
20/02/2024
NADiV Audio Introduces Range Of Dante Audio And Control Devices
NADiV Audio has launched its NADiV range of Dante-enabled audio interface and control devices for portable and installed AV and pro audio environments
08/09/2023
Synthax Audio UK Appoints Head Of Sales & Marketing
Synthax Audio UK has appointed Neil Johnston to the position of Head of Sales and Marketing. With over 20 years of experience in the Pro Audio industr