Apple Opens Doors to Its iPhone Audio and Video Testing Chambers
Apple recently invited CNET's Patrick Holland to tour its specialized laboratories in Cupertino where company engineers test and calibrate the iPhone 16's audio and video capabilities.
Holland's visit centered on a long wave anechoic chamber, where walls, ceiling, and floor are covered with foam wedges to eliminate echoes. The facility is used for testing the iPhone 16's four microphones, which despite their small size, are engineered to deliver professional-grade audio quality.
"The iPhone is such a ubiquitous recording device and gets used in so many different environments that we want to make sure that we're able to capture the memory that our users are trying to capture in the truest form," explained Ruchir Dave, senior director of acoustics engineering at Apple.
"The approach we took was to go after both quality as well as utility. And as part of that, we developed a novel microphone component that allows us to deliver some of the best acoustic performance in a phone product," said Dave. "At the same time, [we] developed a feature like Audio Mix that gives users the flexibility to be able to capture different sounds and gives you that creative freedom in the edit to adjust it how you like."
The testing process Apple uses includes a sophisticated array of speakers that play chimes while the iPhone rotates, creating a spherical sound profile. This data forms the foundation for features like spatial audio and Audio Mix, which allows users to adjust recorded audio to simulate different microphone types. In separate soundproof studios, Apple conducts comparative playback tests with multiple testers to ensure consistent audio quality.
The tour's highlight was a theater-sized video verification lab, where Apple engineers calibrate display performance across various lighting conditions. The facility features a massive screen that simulates how videos appear on iPhone displays, whether viewed in dark rooms, offices, or bright sunlight. For all the details, check out the full writeup over at CNET.
Popular Stories
Apple does not approve of the "Hot Tub" pornography app that was released for the iPhone in the EU using alternative app distribution, Apple said in a statement to MacRumors. Further, Apple is concerned about the potential user safety risks with a pornography app, and says that it undermines consumer trust in the Apple ecosystem.
We are deeply concerned about the safety risks that hardcore...
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
iPhone 17 Pro concept based on rumors
Below, we recap key changes rumored for the iPhone 17 Pro models as of January 2025:
More aluminum: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models ...
Apple previously teased that Powerbeats Pro 2 would be released in 2025, and now an announcement date has leaked. Bloomberg's Mark Gurman today said Apple plans to unveil the wireless earbuds on Tuesday, February 11.
Powerbeats Pro 2 will be priced at $250 in the U.S., he said.
Powerbeats Pro are a sportier, fitness-focused alternative to AirPods Pro with built-in, adjustable ear hooks...
Starting next week, Apple's retail stores will no longer offer AppleCare+ plans as a one-time purchase, according to Bloomberg's Mark Gurman.
Instead, he said the stores will only offer AppleCare+ as a subscription. For example, AppleCare+ for the iPhone 16 Pro Max costs $9.99 per month, or $199 upfront for two years. The latter option would no longer be available at Apple's stores....
As early as this week, Apple plans to introduce a new iCloud-based service for event invites, according to Bloomberg's Mark Gurman.
In his Power On newsletter, Gurman said the new service is codenamed "Confetti" within Apple. He said the service will offer users a "new way to invite people to parties, functions, and meetings." He did not say if this functionality would be available through a ...
January has come to a close, with Apple pushing out iOS 18.3 and related software updates in the final week of the month to deliver some refinements for Apple Intelligence, security fixes, and more.
We're looking ahead to more substantial updates with iOS 18.4, while we also shared news and rumors about AirPods and the upcoming "iPhone 17 Air," so read on below for all the details!
iOS...
On this week's episode of The MacRumors Show, we talk through all of the latest rumors about the iPhone SE 4 as it nears launch.
Subscribe to The MacRumors Show YouTube channel for more videos
The fourth-generation iPhone SE is widely rumored to feature an iPhone 14-style all-screen design with a 6.1-inch OLED display, Face ID, and USB-C. Images of dummy models showcasing the new design were ...
