Robust Recovery of Deterministic Timecode Signals Under Analog Degradation
This paper presents a controlled evaluation framework for recovering deterministic stereo timecode waveforms used in digital vinyl systems. Three lightweight decoding policies are compared: Fixed-Threshold Symbol Decoder (FTSD), Adaptive-Threshold Symbol Decoder (ATSD), and State-Constrained Temporal Decoder (SCTD). The work provides matched comparison and explicit separation of availability, reference-relative correctness, and temporal behavior across noise, dropout, and clipping conditions.