Broadcast News

Bookmark and Share
23/01/2019

Comrex Earshot-IFB Heralds A New Era In Remote IFB For Live Radio And Television

News Image
Interruptible Foldback (IFB) – aka Switched Talkback – is a one-way monitoring and cueing system used in television, filmmaking, video production and radio broadcast for communication from the studio director to on-air talent at a remote location. IFB is often facilitated using an earpiece that the on-air talent wears to get cues, instructions and direction from the studio or control room.

The entire setup uses an intercom buss that consists of a mix-minus or clean-feed of programme audio that can be interrupted or switched to be replaced by a talkback feed that overrides the normal clean-feed. On a television news programme for example, a producer can talk to the news anchors to tell them when they are live on the air and when to begin reading off the script on the teleprompter or cue cards. In live television, some news anchors are seen listening to IFBs through their earpieces in order to report breaking news and announcements.

Traditionally, IFB is sent to the remote site using normal PSTN Telephone Lines but by the very nature of PSTN, one telephone line is needed for each and every simultaneous IFB connection which has resulted in banks of legacy POTS lines (Plain Old Telephone System) being kept just to cue remote talent. The call may well connect remotely via a mobile connection with a Bluetooth interface such as BluePack or BlueKeeper, often used in OB Vehicles for talkback and IFB which is then distributed to the remote crew using wireless earpieces.

This is where Earshot-IFB comes in;  instead of using multiple PSTN lines for IFB, Earshot is a VoIP audio bridge to which up to 30 simultaneous users can connect bringing the power of VoIP (Voice-over-IP) to IFB technology, resulting in high-quality audio and significant savings in cost.

Comrex EarShot-IFB is a hardware-based system that delivers live audio feeds to callers. It is designed to provide telephone-based live studio programme and IFB audio to field-based remote broadcasts, ideal for Sports and TV ENG reporters making it possible to replace up to 30 POTS lines with one simple box.

EarShot has four audio inputs (or feeds) two of which can be configured for IFB.  Up to 30 callers can dial in and listen to audio from standard telephones (including Mobiles) and switch between the feeds using DTMF (Touch Tone) selection. Some feeds typically carry full programme audio with Clean-Feed / Mix-Minus on other Inputs to prevent echo and other audio flaws. This versatility makes it simple to tailor EarShot-IFB to individual needs.

EarShot interfaces to VoIP telephone circuits using SIP and can connect using cloud-based VoIP providers, VoIP-based PBXs (usually) or hardware VoIP/PSTN gateways. It can handle up to 30 POTS or 10 wideband calls and users can configure the box to handle a combination of each.  Subscribers use a normal ’phone to connect or the FieldTap application, CallMe Click-and-Connect or the hardware CallMe-T codec - to provide higher quality audio and additional flexibility.

For more information or to arrange a demonstration, Vortex distributes Comrex Codecs, Talk Show Systems and Telephone Interfaces – including Earshot.

www.vtx.co.uk

This article is also available to read at BFV Online
Solidmate Ltd Memory Card Hire London

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

06/12/2019
Production News : Live Election Debate To Air On Channel 4 This Weekend
Channel 4 is set to broadcast a live debate show this weekend covering the key election issues away from Brexit. Cathy Newman will host 'Britain Decid
03/12/2019
Oscar Tovar Discovers SSL's Live Offering
Oscar Tovar knows what he's talking about when it comes to audio consoles. In 1987, he started his musical journey with Abreu Producciones, then spent
24/02/2020
Audio-Technica Partners With Audio Pro Business
Audio-Technica has announced a partnership with Audio Pro Business which will see the Swedish speaker manufacturer join Audio-Technica's portfolio of
03/10/2019
DHD Audio Announces Additions To Audio Mixing Consoles
DHD Audio has announced five major additions to the capabilities of its RX2, SX2, 52/TX and 52/MX audio mixing consoles. Introduced at IBC 2019 in Ams
23/03/2020
Video Return Feeds – Their Value In Live Broadcast Production
With so many live events being broadcast to cover the vast amount of News, Sport and Entertainment available now, you need to ensure that your field c
22/03/2017
Jünger Audio Demos Audio Processors At CABSAT 2017
Jünger Audio will be promoting its Smart Audio concept at this year's CABSAT exhibition in Dubai (Booth 102, Hall 1) by focusing attention on effectiv
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
06/02/2018
Iemke Roos Audio Rebrands As Audio-Technica Benelux
Audio-Technica's Netherlands-based distributor, Iemke Roos Audio,has rebranded to 'Audio-Technica Benelux'. While the name changes, all customers will
04/09/2013
Visom Digital Supplying Major Brazilian Broadcasters
Visom Digital, a production sales company with a studio division specializing in recording, mixing, post-production film with Foley, ADR, Dubbing, SFX
15/05/2017
Spiritland Delivers Supreme Sonic Experience With Audio-Technica
Created as a space to "celebrate artistry and indulge the senses", Spiritland's world-class, bespoke sound system makes it one of London's most exciti
12/05/2017
Jünger Audio Delivers Loudness Control To Al Jazeera
One of the world's largest news organisations, Al Jazeera, has chosen Jünger Audio's acclaimed loudness management technology to control and regulate
04/05/2017
Calrec Audio Reveals V8 Software Updates At NAB 2017
Calrec Audio has revealed a number of updates to its V8 software. The new developments were unveiled by the company at the recent 2017 NAB Show in Las
27/11/2019
Waves Audio Appoints Live And Install Product Manager
Waves Audio has appointed Greg Kopchinski as Live and Install Product Manager, further developing Waves' live and commercial AV products. Kopchinski h
29/11/2019
SIP Connectivity; IP Interoperability Using Public Networks
Thanks to SIP technology – the key to IP connectivity - Broadcasters enjoy the freedom to create unique content from more locations than ever before a
27/03/2019
Audio-Technica Extends Partnership With Apart Audio
Audio-Technica has extended its distribution partnership with Belgian installation audio manufacturer Apart Audio to include Northern Ireland and the