https://wccftech.com/apple-releases-support-advise-for-airpods-pro-users-experiencing-audio-crackiling-and-noise-cancellation-issues/

In the past few months, some AirPods Pro users have complained about the reduced noise cancellation and audio crackling. The issues took center stage after the release of the firmware version 2B588 in November of last year. According to the latest, Apple has addressed the issues in two support documents that we will talk about later on. The support documents provide users with troubleshooting advice. Here's what the company wants you to do.

For noise cancellation issues, the first thing you have to make sure that you have the latest firmware version installed on your connected iPhone, iPad, iPad Touch, or Mac. In addition to this, Apple recently released the new firmware update 2D15 for the AirPods Pro. The update should install automatically once the earbuds are connected to an Apple device for a specific period of time.