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.
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.)
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.
Thursday August 28, 2025 4:08 am PDT by Tim Hardwick
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall.
At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface.
The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas.
Image Credit: @MajinBuOfficial
The images show three alleged changes compared to Apple's iP...
Friday August 29, 2025 4:54 am PDT by Tim Hardwick
Apple and Samsung have reportedly issued cease-and-desist notices to Xiaomi in India for an ad campaign that directly compares the rivals' devices to Xiaomi's products. The two companies have threatened the Chinese vendor with legal action, calling the ads "disparaging."
Ads have appeared in local print media and on social media that take pot shots at the competitors' premium offerings. One...
Apple is preparing to release iOS 18.7 for compatible iPhone models, according to evidence of the update in the MacRumors visitor logs.
We expect iOS 18.7 to be released in September, alongside iOS 26. The update will likely include fixes for security vulnerabilities, but little else.
iOS 18.7 will be one of the final updates ever released for the iPhone XS, iPhone XS Max, and iPhone XR,...
Following the announcement of Apple's upcoming "Awe dropping" event, on this week's episode of The MacRumors Show we talk through all of the new accessories rumored to debut alongside the iPhone 17 lineup.
Subscribe to The MacRumors Show YouTube channel for more videos
We take a closer look at Apple's invite for "Awe dropping;" the design could hint at the iPhone 17's new thermal system with ...
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.
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.
Biggest design overhaul since iOS 7 with Liquid Glass, plus new Apple Intelligence features and improvements to Messages, Phone, Safari, Shortcuts, and more. Developer beta available now ahead of public beta in July.
