Removing the Downlink Suppressor Improved the Stable Build
More signal processing is not automatically better audio.
DSP
When Downlink Suppression Makes Speech Worse
A processor that removes noise can also remove speech detail when its assumptions do not match the signal.
Wi-Fi CSI Experiments Got Better When I Split Collection from DSP
Keeping the ESP32 focused on reliable CSI capture and moving heavier analysis elsewhere made the sensing pipeline easier to debug.
AEC Only Worked Once the Reference Signal Was Actually the Far-End Audio
An echo canceller cannot remove what its reference channel does not represent.