Audio settings on the Apple TV can be adjusted through Apple TV > Settings > Video and Audio > Audio Format.
Auto (recommended): Audio will be sent as uncompressed, multi-channel LPCM (up to 7.1 channels and 24-bit) Dolby Digital 5.1: Audio will be sent as Dolby Digital AC3 (5.1 channels and 16-bit) Stereo: Audio will be sent as stereo (2.0 channels)
我也是用Apple TV 4k(A15 128G),從拿到16.1.1更新16.2版本後就開始發現有搖控器斷線問題。(不曉得是不是我外帶回老家連結跟家裡以外的電視後帶回家後就開始造成容易斷線問題)還是更新16.2,經過從Apple TV的設定->系統->重置一遍後就正常沒再沒出現斷線問題了,提供我個人使用經驗做參考。