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Sprint to Launch HD Voice This Year
Though HD Voice Over LTE Won't Be Mainstream Until 2014
by Karl Bode 03:03PM Tuesday Aug 07 2012
One of the biggest benefits of the shift to LTE will be the introduction of high definition voice, a long overdue and potentially significant ramp up in current phone call audio quality. Even Verizon, who leads in the deployment of LTE, has delayed introducing LTE voice (or HD voice) because of the problems with handing calls off between LTE and older network technologies. Sprint is now saying they plan to launch HD Voice service by the end of the year for the HTC EVO 4G LTE. Still, like AT&T and Verizon, Sprint doesn't expect higher definition voice services to really begin to take off until sometime later in 2013, with the conversion nearing completion by the end of 2014. Meanwhile, SK Telecom is though to be the first anywhere to launch HD voice over LTE this week for Samsung Galaxy S3 owners.

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elefante72

join:2010-12-03
East Amherst, NY
Reviews:
·Verizon FiOS

1 edit

HD voice is 1x advanced

Karl,

HDvoice codec is 1x advanced part of CDMA2000 specs, not LTE per se. They will use a slice of the new spectrum for it, and then put LTE in higher frequency bands. NV 1900 spectrum.

In VoLTE (AMR-WB) HDvoice codec can be used. But for the launch this year on Sprint its 1x advanced on CDMA, not LTE.

BTW - Both devices need to support the codec for it to work.

HTH
elefante72

join:2010-12-03
East Amherst, NY

Re: HD voice is 1x advanced

I was wrong. It look like they are going to put it in the 800Mhz spectrum, not the 1900. Makes sense for better building penetration.

digiblur
Premium
join:2002-06-03
Louisiana

Re: HD voice is 1x advanced

said by elefante72:

I was wrong. It look like they are going to put it in the 800Mhz spectrum, not the 1900. Makes sense for better building penetration.

No, it will be on the 1900mhz PCS band as well. Per PRL design, the 800SMR band capable devices will scan the PCS channels for 1x(voice/text) connectivity first. If the phone is unable to acquire, it will scan the 800SMR band for 1x connectivity. That way only the phones that need the building penetration at the time will be on the 800SMR band. There's plenty of room on the PCS band for everyone, but not so much on the 800SMR band.

You'd never get to use HD voice if both phones had to support it, both phones in a network vision completed area, and both phones in a place where their phone could not acquire a PCS signal from the tower. Definitely not the design.
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SouthWest Louisiana PC Users Group »www.swlapcug.com

Gozo

join:2012-07-25

HD Voice

Talk about an oxymoron. I prefer Wideband audio.

vpoko
Premium
join:2003-07-03
Boston, MA

Woohoo, hold music

I don't have an issue with voice quality as-is, but this will definitely help with hold music.

swintec
Premium,VIP
join:2003-12-19
Alfred, ME
kudos:6
Reviews:
·Time Warner Cable
·VoicePulse
·Sprint Mobile Br..
·RapidVPS

Re: Woohoo, hold music

said by vpoko:

I don't have an issue with voice quality as-is, but this will definitely help with hold music.

Since you need two capable handsets to make it work in cell to cell communication, how long before calls to landlines / POTS lines can make use of it?
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vpoko
Premium
join:2003-07-03
Boston, MA

1 edit

Re: Woohoo, hold music

I don't think they ever will. POTS is sampled at 8 kHz, which means (per the Nyquist theorem) that signals above half that (4 kHz) will be aliased, reducing fidelity. Unless POTS is replaced by something else (in which case it won't be POTS), that will remain a limit.

ropeguru
Premium
join:2001-01-25
Mechanicsville, VA

Re: Woohoo, hold music

said by vpoko:

I don't think they ever will. POTS is sampled at 8 kHz, which means (per the Nyquist theorem) that signals above half that (4 Hz) will be aliased, reducing fidelity. Unless POTS is replaced by something else (in which case it won't be POTS), that will remain a limit.

Exactly, however, you will be able to get it cell to cell and it is also starting to be seen more in VoIP setups. So start rolling it out now and as the backend matures, then it will be available.

gballer

@reyrey.net

ummm

people actually talk on the phone still?

Gozo

join:2012-07-25

Re: ummm

said by gballer :

people actually talk on the phone still?

Yes, my skinny jeans wearing trendy hipster friend. People still call each other.

Caddyroger
Premium
join:2001-06-11
To the west
Every one I do not read text or send texts.
--
Caddy
en103

join:2011-05-02

Re: ummm

Same here - Text/SMS is a waste of time/money, IMHO. I'll use email with a data package, but not text.

Sprint has always had good audio quality - this appears to be keeping the standard.

Caddyroger
Premium
join:2001-06-11
To the west
Reviews:
·Comcast

Re: ummm

said by en103:

Same here - Text/SMS is a waste of time/money, IMHO. I'll use email with a data package, but not text.

Sprint has always had good audio quality - this appears to be keeping the standard.

I do not even use it for email.
--
Caddy
beavercable
Premium
join:2008-05-11
Beaverton, OR

Hmmm

So will there now be a second mandatory $10 charge for this?
25139889

join:2011-10-25
Toledo, OH

Re: Hmmm

you're $10 for "high speed internet" will be raised to $20 to cover all the costs.
GraysonPeddi
Grayson Peddie

join:2010-06-28
Tallahassee, FL

Re: Hmmm

Are you a ten dollar bill?
GraysonPeddi
Grayson Peddie

join:2010-06-28
Tallahassee, FL

Hearing Impaired

This might work wonders for the hearing impaired!

Unfortunately, I'm not going to Sprint. I don't make more than 30 minutes of phone calls and I prefer mobile data. I'm unsure if I can make use of Speex 16kHz for Android over LTE, provided that me and my family uses Android with CSipSimple that supports Speex at 16kHz.

Nextel

@cox.net

Call quality

I remember the first time I had used a Nextel phone, an old i600, I was amazed by the call quality. Over time I remember it got worse and worse, though I always wonder why their call quality sounded much better than the Worldcom phone I had at the time and my work provided AT&T.
25139889

join:2011-10-25
Toledo, OH

Re: Call quality

Nextel's network had a killer network for voice. Data was slow and Texting at times- but it was NEVER designed for that