Separate Codec Bring-Up from Acoustic Tuning
Prove clocks, framing, routing and gain before judging microphones, speakers or enclosure acoustics.
speaker
A Tinny Speaker Is Not Automatically a Codec Bug
Acoustic complaints have to be separated into source, amplifier, transducer and enclosure effects.
Returning the Tinny EVT Unit Is Part of Root-Cause Control
Remote descriptions of sound are not enough when hardware, assembly and enclosure can all differ.