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

Top Rated Comments

floatingspirit Avatar
151 months ago
US Carriers suck. Always have.
Score: 30 Votes (Like | Disagree)
superfula Avatar
151 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
151 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
151 months ago
But remember, apple only caters to the American market. ;)
Score: 13 Votes (Like | Disagree)
FSMBP Avatar
151 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
151 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)

Popular Stories

reset password request iphone

Warning: Apple Users Targeted in Phishing Attack Involving Rapid Password Reset Requests

Tuesday March 26, 2024 4:34 pm PDT by
Phishing attacks taking advantage of Apple's password reset feature have become increasingly common, according to a report from KrebsOnSecurity. Multiple Apple users have been targeted in an attack that bombards them with an endless stream of notifications or multi-factor authentication (MFA) messages in an attempt to cause panic so they'll respond favorably to social engineering. An...
iPhone Home Screen Gradient Blank Spaces 1

Sources: iOS 18 Lets Apps Be Placed Anywhere on Home Screen Grid

Sunday March 24, 2024 1:33 pm PDT by
iOS 18 will give iPhone users greater control over Home Screen app icon arrangement, according to sources familiar with the matter. While app icons will likely remain locked to an invisible grid system on the Home Screen, to ensure there is some uniformity, our sources say that users will be able to arrange icons more freely on iOS 18. For example, we expect that the update will introduce...
iPad Pro 2024 Landscape Camera Feature

New iPad Pro Again Rumored to Feature Landscape Front-Facing Camera

Monday March 25, 2024 5:43 am PDT by
The next-generation iPad Pro will feature a landscape-oriented front-facing camera for the first time, according to the Apple leaker known as "Instant Digital." Instant Digital reiterated the design change earlier today on Weibo with a simple accompanying 2D image. The post reveals that the entire TrueDepth camera array will move to the right side of the device, while the microphone will...
sonoma desktop wwdc

Apple Releases macOS Sonoma 14.4.1 With Fix for USB Hub Bug

Monday March 25, 2024 10:10 am PDT by
Apple today released macOS Sonoma 14.4.1, a minor update for the macOS Sonoma operating system that launched last September. macOS Sonoma 14.4.1 comes three weeks after macOS Sonoma 14.4. The ‌‌‌‌macOS Sonoma‌‌ 14.4‌.1 update can be downloaded for free on all eligible Macs using the Software Update section of System Settings. There's also a macOS 13.6.6 release for those who...
Generic iOS 18 Feature Purple

iOS 18 Will Finally Bring This Android Feature to iPhone

Monday March 25, 2024 6:42 am PDT by
iOS 18 will allow iPhone users to place app icons anywhere on the Home Screen grid, according to sources familiar with development of the software update. This basic feature has long been available on Android smartphones. While app icons will likely remain locked to an invisible grid system on the Home Screen, our sources said that users will be able to arrange icons more freely on iOS 18....
maxresdefault

Apple Announces WWDC 2024 Event for June 10 to 14

Tuesday March 26, 2024 10:02 am PDT by
Apple today announced that its 35th annual Worldwide Developers Conference is set to take place from Monday, June 10 to Friday, June 14. As with WWDC events since 2020, WWDC 2024 will be an online event that is open to all developers at no cost. Subscribe to the MacRumors YouTube channel for more videos. WWDC 2024 will include online sessions and labs so that developers can learn about new...
iphone reasons to upgrade

Apple Outlines 'Reasons to Upgrade' Your iPhone on New Website

Monday March 25, 2024 12:53 pm PDT by
Apple today added a "Why Upgrade" section to its website, which is aimed at encouraging customers with older iPhones to upgrade to a newer model. The website allows customers to compare the iPhone 11, 11 Pro, 11 Pro Max, 12, 12 mini, 12 Pro, and 12 Pro Max to the iPhone 15, iPhone 15 Plus, iPhone 15 Pro, or iPhone 15 Pro Max. Each comparison shows what new features someone with an older...
apple maps 3d feature

Apple Maps May Gain Custom Routes With iOS 18

Tuesday March 26, 2024 3:10 pm PDT by
Apple may be planning to add support for "custom routes" in Apple Maps in iOS 18, according to code reviewed by MacRumors. Apple Maps does not currently offer a way to input self-selected routes, with Maps users limited to Apple's pre-selected options, but that may change in iOS 18. Apple has pushed an iOS 18 file to its maps backend labeled "CustomRouteCreation." While not much is revealed...