Volume Feedback Can Be a Small Partial-Refresh Overlay
A physical button needs visible confirmation without forcing a page transition.
volume
Echo at High Volume Is Partly an Acoustic Design Problem
AEC has finite cancellation authority when the speaker physically couples strongly into the microphones.
Volume Stuck Near 80 Percent Was a Gain-Path Problem, Not a UI Problem
A slider value is meaningless until every digital and analog gain stage is mapped.