The precursor to these features was the "Audio/AirPods Accessibility" settings as "Custom Transparency Mode"). When I last tried them, some settings seemed to process the audio in the "control plane" (as opposed to the regular transparency being "data plane"), leading to loss in quality or delay (compared to plain transparency mode). I remember hoping the 2nd gen AirPods Pro would solve this but I think it remained.
For example I remember amplifying the sound appeared to introduce some kind of extra delay and quality reduction that wasn't there before. I no longer have an iPhone to try this out with but I do wonder if someone knows whether these new features are still subject to this limitation.
For example I remember amplifying the sound appeared to introduce some kind of extra delay and quality reduction that wasn't there before. I no longer have an iPhone to try this out with but I do wonder if someone knows whether these new features are still subject to this limitation.