Why UDP Arrival Should Not Be the Speaker Clock
RTP arrived in bursts even when packet sequence was mostly healthy, so directly pacing I2S from receive callbacks made network jitter audible.
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V126 to V127: What 68.201 ms to 0.457 ms Actually Proved
A large first callback-to-speaker delay suggested work was accumulating between RTP reception and physical output.
When UART Logging Became a Real-Time Audio Bug
The firmware sounded worse while producing the very diagnostics intended to explain it.
Speaker Writes Over 20 ms Became My Local Deadline Signal
Crackle and cutouts needed a device-side timing metric that was closer to the DAC than packet arrival.
Long-Call Drift Is Different from Short-Call Sound Quality
A call can sound excellent for thirty seconds while two media clocks slowly walk apart.
Why More Jitter Buffer Was Not Automatically Better
Increasing jitter tolerance seemed like the obvious response to bursty packet arrival.