Mar 13, 2019

iOS 12.2 Gets Huge Improvements Over Audio Messages Quality

In the iOS 12.2 beta, Apple enhanced the quality of iMessage audio messages thanks to the adoption of the new Opus encoding technology with a sampling rate of 24000 Hz. Previously, audio messages used AMR encoding technology with a rate of 8000 Hz.

You can feel the improvement of voice quality in the video below. The first half is the voice impression of iOS 12.1.4, and the second half is the voice impression of iOS 12.2 beta 5. At the same time, Apple once used the .AMR format to save audio messages, which now has been changed to .CAF in the latest beta.

On iOS 12.2 or macOS 10.14.4 systems, .CAF files sound crisper, clearer, and louder. Of course, better results mean that the file size of the audio will also become larger. Right now, you can only experience the upgraded voice quality after your device updated to iOS 12.2 or macOS 10.14.4, which is currently in beta testing, but we expect the updates will be available following the March 25th event.

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