HD VoIP and HD Voice Codecs

Have you at any point been on a business call that had perfectly clear solid? Or on the other hand perhaps you’ve caught an approach your associate’s speakerphone and you could’ve sworn that the individual who your collaborator was talking with was quite the room!

These kinds of calls are top quality calls, yet you may know them as wideband sound or “HD voice,” just to give some examples of equivalent words. In this blog, we’ll present some early on data on what HD calls are and how they work.


Sound Codec

A codec is a program or calculation that is utilized to change over sound (voice sounds) into a packed, carefully encoded structure and after that once again into uncompressed sound at the opposite end. “Codec” is, in reality, another way to say “coder-decoder,” and many diverse codecs exist, every one of which may have distinctive transmission capacity and computational necessities. Numerous codecs are formalized by the International Telecommunications Union (ITU) into benchmarks for use crosswise over various nations and gadgets.


Wideband Audio

Wideband Audio innovation utilizes a “wideband” codec that utilizes a more prominent recurrence scope of the sound range when contrasted with narrowband codecs. Wideband innovation transmits sound past the narrowband furthest reaches of 3.4 kHz, as far as possible up to 7 kHz. This extended territory results in brilliant sound and discourse quality: more clear telephone calls and more keen, crisper voices.

How Do VoIP Phones Know Which Codec to Use?

End-client gadgets, for example, IP telephones and softphones, regularly bolster a few diverse sound codecs. At the point when two of these gadgets start to chat with one another, they will arrange which codec to use by taking a gander at which ones they share for all intents and purpose. You can consider codecs the diverse sorts of sound documents on your PC. Similarly, as a .wav player would not have the capacity to play a .mp4, an IP telephone would not have the capacity to effectively speak with another end client gadget on the off chance that they didn’t share no less than one codec.

Truth Versus Fiction: HD Voice Mythbusters

  1. HD Voice Is New

HD voice innovation has been around for longer than you may suspect. A standout amongst the most outstanding usage is Skype. A while ago when Skype was discharged in 2003, clients quickly asked why their Skype-to-Skype calls sounded such a great amount of superior to anything that they were utilized to. Things being what they are, Skype was utilizing a restrictive sound codec called iSAC that caught double the voice recurrence of PSTN calls and the vast majority of the VoIP calls at the time. As it were, Skype was a prime case of wideband sound innovation at work.

  1. HD Voice Is Costly

Quite a while back, a large portion of the HD-skilled VoIP telephones available were “official class” IP telephones with MSRPs of more than $200. There were additionally just a couple of producers that promptly pushed the innovation, so alternatives were restricted.

Today, practically all makers of VoIP client specialists offer HD-competent items. Numerous HD contributions additionally reach out to the most reasonable section level models. You would now be able to get an HD VoIP telephone for well under $100. Indeed, even some IP telephones that once did not bolster the G.722 wideband codec have experienced firmware overhauls that currently make them HD perfect.

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