Has the audio playback for your Apple iPad recently become choppy or glitchy with all Apps? Are you using a USB C to 1/8” dongle? Try unplugging it and plugging it back in. It’s not a true fix, but it does stop it from happening. Is this issue affecting bluetooth audio? Is this affecting iPhone with lightning port?
** UPDATE 07-29-2021 **
iPadOS 14.7 (and at this point 14.7.1) update fixes Audio Stutter Skipping Bug. Been testing for a couple days with no issue. It’s listed in the bug fix notes as, “Audio may skip when using USB-C to 3.5 mm headphone jack adapters with iPad.”