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

maxresdefault

Apple Shows Off a Key Reason to Upgrade to the iPhone 17

Saturday February 7, 2026 9:26 am PST by
Apple today shared an ad that shows how the upgraded Center Stage front camera on the latest iPhones improves the process of taking a group selfie. "Watch how the new front facing camera on iPhone 17 Pro takes group selfies that automatically expand and rotate as more people come into frame," says Apple. While the ad is focused on the iPhone 17 Pro and iPhone 17 Pro Max, the regular iPhone...
m5 macbook pro deal

Why You Shouldn't Buy the Next MacBook Pro

Tuesday February 10, 2026 4:27 pm PST by
Apple is planning to launch new MacBook Pro models as soon as early March, but if you can, this is one generation you should skip because there's something much better in the works. We're waiting on 14-inch and 16-inch MacBook Pro models with M5 Pro and M5 Max chips, with few changes other than the processor upgrade. There won't be any tweaks to the design or the display, but later this...
apple wallet drivers license feature iPhone 15 pro

Apple Says These 7 U.S. States Plan to Offer iPhone Driver's Licenses

Monday February 9, 2026 6:24 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps. The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future. To set up the...
iOS 26

Apple Releases iOS 26.3 and iPadOS 26.3

Wednesday February 11, 2026 10:07 am PST by
Apple today released iOS 26.3 and iPadOS 26.3, the latest updates to the iOS 26 and iPadOS 26 operating systems that came out in September. The new software comes almost two months after Apple released iOS 26.2 and iPadOS 26.2. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. According to Apple's release notes, ...
Apple Logo Zoomed

Apple Expected to Launch These 10+ Products Over the Coming Months

Tuesday February 10, 2026 6:33 am PST by
It has been a slow start to 2026 for Apple product launches, with only a new AirTag and a special Apple Watch band released so far. We are still waiting for MacBook Pro models with M5 Pro and M5 Max chips, the iPhone 17e, a lower-cost MacBook with an iPhone chip, long-rumored updates to the Apple TV and HomePod mini, and much more. Apple is expected to release/update the following products...

Top Rated Comments

175 months ago
US Carriers suck. Always have.
Score: 30 Votes (Like | Disagree)
175 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)
175 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
175 months ago
But remember, apple only caters to the American market. ;)
Score: 13 Votes (Like | Disagree)
FSMBP Avatar
175 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)
175 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)