The company led by Tim Cook has quietly introduced a call improvement on the AirPods Pro.

According to a new report , Apple has improved the audio quality of calls on the AirPods Pro when the AirPods 3 were launched.

In the AirPods 3 commercial there is a phrase indicating that the new Bluetooth headphones support AAC-ELD , a “superior voice codec that offers Full HD voice quality”. According to a developer, the codec update is also available on the AirPods Pro.

AAC-ELD, or Advanced Audio Codec-Enhanced Low Delay, is a variant of the AAC standard used on most streaming services. However, developer Pfeiffer says it also includes better audio quality and latency for voice communication.

Although Apple said the AirPods 3 support the AAC-ELD codec, Pfeiffer was able to confirm that the company has also added the new Bluetooth profile to the AirPods Pro.

The result should be better audio quality when users receive a call . This is because the AirPods automatically switch to a two-way profile when a call is received, which typically results in reduced audio quality.

It’s possible that the AAC-ELD codec was added to older AirPods models as well, but the developer was able to confirm profile support on AirPods Pro only.

Finally, Pfeiffer noted that the new profile is an improvement, but not perfect. The inherent limitations of Bluetooth data rates continue to cause problems when using a two-way audio profile.

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