U.S. Carriers Unlikely to Support iPhone 5's Wideband Audio, European Support More Likely

One of the iPhone 5 features highlighted by Phil Schiller during yesterday's introduction was wideband audio, which offers "crisper word clarity and more natural sounding speech" according to Apple's press release. Schiller noted that the feature requires carrier support and that it would be supported by over 20 carriers on the iPhone 5 at launch, but did not specify which carriers those would be.

schiller wideband audio 1
Phone Scoop reported late yesterday that Sprint has confirmed it will not support wideband audio (frequently marketed as "HD Voice") on the iPhone 5, and PCMag.com has a good overview of why none of the three major U.S. carriers are likely to support it.

There are three ways to do high-quality, or "wideband" voice calls.

One is to use a new codec, called AMR-WB, over a "3G GSM" (UMTS) network. That's what some European carriers are doing and what's in the iPhone. This is relatively easy to implement on the phone side, provided that the network supports it. In the U.S., only AT&T and T-Mobile would be eligible to do this, and they won't because they're focused on 4G (see below.)

schiller wideband audio 2
The report goes on to discuss the other two mechanisms for providing HD Voice support, which include a CDMA-related codec being used by Sprint and voice-over-LTE technology being pursued by both AT&T and Verizon, but the iPhone 5 does not support either of those mechanisms.

The result is going to be extremely limited HD Voice experiences in the U.S. for at least a few years. It'll be restricted to calls between limited sets of phones, probably on the same carrier, and it won't be on the iPhone 5.

Beyond wideband audio, Schiller touted several other audio enhancements on the iPhone 5, including a total of three microphones for noise cancelation and accurate voice transcription, a smaller and improved speaker, and a noise-canceling earpiece.

(Images from The Verge)

Related Forum: iPhone

Popular Stories

best buy holiday

Best Buy Reveals Black Friday Plans With Sitewide Sales Available Now

Friday November 8, 2024 10:05 am PST by
Black Friday sales are continuing today with Best Buy kicking off early Black Friday deals that will last for the next few days. Similar to other retailers, Best Buy's early Black Friday event includes sitewide savings on Apple products, headphones, TVs, monitors, video games, and more. Note: MacRumors is an affiliate partner with Best Buy. When you click a link and make a purchase, we may...
AirPods Pro Firmware Feature

Apple Releases Firmware Updates for AirPods Pro 2 and AirPods 4

Monday November 11, 2024 11:28 am PST by
Apple today released firmware updates for both AirPods 4 models (version number 7B20) and the AirPods Pro 2 with both Lightning and USB-C charging cases (version number 7B21). All of these AirPods models were previously on firmware version 7B19. It is not immediately clear what new features or changes are included in firmware versions 7B20 and 7B21, but we will update this story if we find...
mac mini thermal architecture feature

New Mac Mini Has Modular Storage, 256GB Model Will Have Faster SSD

Friday November 8, 2024 7:06 am PST by
Apple has returned to using two 128GB storage chips in the new Mac mini with 256GB of storage, according to a partial teardown video shared on social media today. This means the base-model Mac mini with the M4 chip will not have significantly slower SSD speeds compared to higher-end configurations of the computer with 512GB, 1TB, or 2TB of storage, as multiple NAND chips allows for faster SSD...
General Final Cut Pro Feature

Apple Likely to Announce Final Cut Pro Update This Week With These New Features

Sunday November 10, 2024 12:13 pm PST by
In its announcement video for the new Mac mini last month, Apple teased an "upcoming" version of Final Cut Pro for the Mac. Apple will likely announce the update during the annual Final Cut Pro Creative Summit, which begins this Wednesday. The conference is held in association with Apple, and attendees will be visiting Apple Park on the first day. Apple already teased four new features...
iphone 6 thickness

iPhone 17 'Air' May Not Be Much Thinner Than iPhone 6

Monday November 11, 2024 5:18 am PST by
Next year's iPhone 17 "Air" model may not be as thin as Apple planned, according to a rumor originating in Korea. According to the news aggregator account "yeux1122" on Naver, citing industry sources, Apple has run into problems making the new iPhone 17 model sufficiently thin. The device's reduced thickness is apparently dependent on manufacturing a battery with a thinner substrate, but...
Generic iOS 18

Everything New in iOS 18.2 Beta 2

Monday November 4, 2024 12:34 pm PST by
Apple today seeded the second betas of upcoming iOS 18.2 and iPadOS 18.2 updates to developers, and Apple is continuing to refine the Apple Intelligence capabilities. There are also a handful of smaller features that are worth knowing about. Find My Find My has a new option to Share Item Location with an "airline or trusted person" that can help you locate something that you've misplaced....
iphone passcode green

Cops Suspect iOS 18 iPhones Are Communicating to Force Reboots, Making Unlocking Harder

Thursday November 7, 2024 2:20 pm PST by
Law enforcement officials in Detroit, Michigan are warning other police officers about an alleged iPhone change that causes Apple devices stored for forensic examination to spontaneously restart, reports 404 Media. iPhones that are undergoing examination have apparently been rebooting, which makes them harder to unlock with brute force methods, and Michigan police think that it's due to a...

Top Rated Comments

floatingspirit Avatar
159 months ago
US Carriers suck. Always have.
Score: 30 Votes (Like | Disagree)
superfula Avatar
159 months ago
So i am paying money for a "wideband audio" feature that at verizon i cannot access or use?

Yes. Without wideband audio the iPhone would certainly be cheaper. :rolleyes:
Score: 17 Votes (Like | Disagree)
Intarweb Avatar
159 months ago
AT&T will support it, for $4.99 extra a month limited to 100 minutes per month.
Score: 15 Votes (Like | Disagree)
chrmjenkins Avatar
159 months ago
But remember, apple only caters to the American market. ;)
Score: 13 Votes (Like | Disagree)
FSMBP Avatar
159 months ago
Do yourself a big favor and use Skype and you'll see how crappy AT&T/Verizon/Any Cell provider's quality is.

Get a friend with an iPhone. Both download Skype (you'll need usernames, yuck, but whatever). Call your friend on Skype. Talk for at least 5 minutes. Hang up, then call using your carrier (AT&T/Verizon) and you'll see how these horrible the carrier's quality is.

I know AT&T is concerned on making money, but at least make some improvements to the voice network.
Score: 9 Votes (Like | Disagree)
Therbo Avatar
159 months ago
more like european carriers are way behind since they don't have LTE yet
You are very misinformed.

European "operators" are actually much in the lead. We still have unlimited data with LTE. A few European countries don't have LTE just yet (although the UK is now rolling it out due to a regulatory hurdle). Countries like Germany, Austria etc have full fledged LTE networks.
Score: 7 Votes (Like | Disagree)