Some iPhone 8 handsets have a crackling earpiece problem, Apple working on a fix
Apple while acknowledging the defect said it was happening in a small number of cases

Moneycontrol News
Several of the newly launched iPhone 8 and 8 Plus users are running into issues with the phone’s earpiece during calls.
Whenever they make a call on the phone, the earphones start making a crackling or a static sound that ends up disrupting the audio.
“Dozens” of people on MacRumors forum, Apple’s support forum and Reddit have reported experiencing the issue of a crackling or static sound that disrupts the audio when a call is made.
Apple while acknowledging the problem, that is currently occurring across the newly launched iPhone 8 and 8 Plus models, said that it is appearing across a small number of devices and that the company is working on a software update that can fix the issue.
“We are aware of the issue that is affecting customers in a small number of cases,” said an Apple spokesperson as per a report in The Verge.
“Our team is at work on a fix, which will be included in an upcoming software release,” the spokesperson further added.
The diagnosis of the problem is still not clear and it is happening across all carriers and in different parts of the world.
The crackling only occurs during Facetime and normal calls and does not occur all the time.
It also never shows up when one is using the earphone as a loudspeaker, strongly suggesting at the hint of it being a software problem.
The video below has a noise sample of what the crackling sound on the new iPhone 8 is like:
(Courtesy: YouTube)
This is the second software fix promised by Apple for the new array of devices it launched at its 10th-year-anniversary launch event, the other one being a software issue with the Apple Watch 3 series that caused it to connect to the unauthenticated Wi-Fi networks.