Dr Sound explains double talk

Dear readers, Dr Sound is back with a new post about sound and sound technology. The subject this time is a really exciting and interesting one called double talk.

Double talk … or full duplex, is all about having the capability for several people being able to talk at the same time, without anyone being cut out. The simplest form of remote communication is what we call simplex. With simplex, one device transmits while the other receives, and only one device can transmit at a time.

Full Duplex means that people can talk at the same time without anyone being cut out.

This is how a traditional communication radio work, with a button you push when you talk. We've all seen movie heroes, with their helmets askew, shouting into a communication radio things like: "We need support, over! We’ll cover you! Over and out!"

Simplex, only one device can transmit while the other receives Like a traditional communication radio.

The intermediate step is half duplex. It's like simplex but is automatically controlled, with the direction of communication being determined by who speaks the loudest. Before the digital era, and consequently before echo cancellation, full duplex was impossible for a speaker phone simply because it would have caused feedback. The incoming “speaker sound”, along with the effects of the room, could not be eliminated before the microphone transmitted.
This is why full duplex is the aim for all telecommunication and also during teleconferences. Long distance conversations with full duplex, are now possible thanks to good digital technology and echo cancelling. A fact that has given us the capability to interrupt one another…

Conversations at distance with full duplex, are now possible thanks to good digital technology and echo cancelling.

Do you want to hear me talk about double talk and listen to some examples? Check out this video that covers it.

Find a reseller

Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager


Holli Hulett
Holli Hulett
Channel Manager


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Jeff May
Jeff May
Regional Sales Director


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Fredrik Hörnkvist
Fredrik Hörnkvist
Sales Director
Territory: West

Peter Gasparro
Peter Gasparro
Regional Sales Director
Territory: East

Holli Hulett
Holli Hulett
Channel Manager


Nipun Khanna
Nipun Khanna
Regional Sales Manager - India & Middle East


Fredrik Hörnkvist
Fredrik Hörnkvist
Sales Director
Territory: West

Peter Gasparro
Peter Gasparro
Regional Sales Director
Territory: East

Holli Hulett
Holli Hulett
Channel Manager


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Holli Hulett
Holli Hulett
Channel Manager


Fredrik Hörnkvist
Fredrik Hörnkvist
Sales Director
Territory: West

Peter Gasparro
Peter Gasparro
Regional Sales Director
Territory: East

Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Fredrik Hörnkvist
Fredrik Hörnkvist
Sales Director
Territory: West

Peter Gasparro
Peter Gasparro
Regional Sales Director
Territory: East

Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Simon Chin
Simon Chin
Regional Sales Director APAC


Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager

Your local resellers

Show all
Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager


Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager

Your local resellers

Show all
Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220
Holger Klenner
Holger Klenner
Key Account Manager Germany
+49 (0)2173 499 5841
default image
Lothar Schumann
Channel Sales Germany
+49 (0)336 386 0597

Your local resellers

Show all

Your local resellers

Show all
Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager


Holli Hulett
Holli Hulett
Channel Manager


Fredrik Hörnkvist
Fredrik Hörnkvist
Sales Director
Territory: West

Peter Gasparro
Peter Gasparro
Regional Sales Director
Territory: East

Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Simon Chin
Simon Chin
Regional Sales Director APAC


Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager


Nipun Khanna
Nipun Khanna
Regional Sales Manager - India & Middle East


Jeff May
Jeff May
Regional Sales Director


Fredrik Hörnkvist
Fredrik Hörnkvist
Sales Director
Territory: West

Peter Gasparro
Peter Gasparro
Regional Sales Director
Territory: East

Holli Hulett
Holli Hulett
Channel Manager


Simon Chin
Simon Chin
Regional Sales Director APAC


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Jeff May
Jeff May
Regional Sales Director


Simon Chin
Simon Chin
Regional Sales Director APAC


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager


Jeff May
Jeff May
Regional Sales Director


Holli Hulett
Holli Hulett
Channel Manager


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Your local resellers

Show all
Jeff May
Jeff May
Regional Sales Director


Holli Hulett
Holli Hulett
Channel Manager


Jeff May
Jeff May
Regional Sales Director


Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager

Your local resellers

Show all
Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Jeff May
Jeff May
Regional Sales Director

Your local resellers

Show all
Holli Hulett
Holli Hulett
Channel Manager


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Jeff May
Jeff May
Regional Sales Director


Jeff May
Jeff May
Regional Sales Director

Your local resellers

  • 1

    Africa Telco Business (PTY) Ltd

    Unit 7 Coram Office Park, Ferero Road, Randparkridge

    0027117924962

  • 2

    Aria Technologies Africa (PTY) Ltd

    24 Tsessebe Crescent
    Building 9, Corporate Park South
    Midrand, 1685, South Africa

    0027112030360

  • 3

    Electronic Communications Network (PTY) Ltd

    Unit 10, Growthpoint Business Park, Midrand, Gauteng

    002710590000

  • 4

    Trenic Industries (PTY) Ltd

    Unit C, Building 2, 5 Woodlands Drive Office park
    Woodmead 2191, South Africa

    0027114664278

Show all
Nipun Khanna
Nipun Khanna
Regional Sales Manager - India & Middle East


Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager


Jörgen Rönnqvist
Jörgen Rönnqvist
Area Sales Manager Nordic and Baltic countries

Mattias Hedin
Mattias Hedin
Key Account Manager

Your local resellers

Show all
Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Simon Chin
Simon Chin
Regional Sales Director APAC


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Jeff May
Jeff May
Regional Sales Director


Fredrik Hörnkvist
Fredrik Hörnkvist
Sales Director
Territory: West

Peter Gasparro
Peter Gasparro
Regional Sales Director
Territory: East

Holli Hulett
Holli Hulett
Channel Manager


Your local resellers

  • 1

    MyCOMtn SARL

    19 Rue Abou Baker Elbekri
    1073 Montplaisir Tunis
    Email: contact@mycomtn.com

    +216 70028000

Show all
Jeff May
Jeff May
Regional Sales Director


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Jeff May
Jeff May
Regional Sales Director

Your local resellers

Show all
Fredrik Hörnkvist
Fredrik Hörnkvist
Sales Director
Territory: West

Peter Gasparro
Peter Gasparro
Regional Sales Director
Territory: East

Holli Hulett
Holli Hulett
Channel Manager


Holli Hulett
Holli Hulett
Channel Manager


Ralf Kalker
Ralf Kalker
Regional Sales Director
+49 (0)221 959 2220

Holli Hulett
Holli Hulett
Channel Manager


Fredrik Hörnkvist
Fredrik Hörnkvist
Sales Director
Territory: West

Peter Gasparro
Peter Gasparro
Regional Sales Director
Territory: East

Holli Hulett
Holli Hulett
Channel Manager


x

When you choose Konftel

Konftel is a pioneer in conference calls. We've been helping companies and organizations around the world to meet at a distance since our launch in 1988. Our conferencing solutions deliver superb audio and video quality for effective and eco-friendly collaboration.


Would you like help finding the right products for your company? We're here to guide you towards the perfect solution. Simply contact Konftel sales. And have you tried our useful product selector?


Two-year warranty

All Konftel's products come with a two-year warranty. This provides peace of mind for customers and shows that our commitment doesn't end with the purchase. We also offer servicing beyond the warranty period. Find out more under Support.

 

Try before you buy

Companies can try a product before making their final decision. This demo option is available in most  markets with Konftel distribution. Leave your contact details and a sales representative will be in touch.


Try now

Take the chance to get a personal live demo with one of our experts.

Book a demo