AdaptiveLNC: bound FLL tracking around nominal line frequency - #182
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New max_freq_deviation setting (default ±2 Hz; None for unbounded) clamps the FLL's tracked frequency so a weak or absent line component cannot random-walk the NCO away from the mains frequency. The bounds are additionally limited to [0, fs/2].
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Summary
Add a configurable bound around the nominal mains frequency for AdaptiveLNC's frequency-locked loop, preventing weak or absent line estimates from allowing the tracker to random-walk toward DC.
Changes
AdaptiveLNCSettings.max_freq_deviation, defaulting to ±2 Hz aroundline_freq.max_freq_deviation=Noneto preserve unbounded tracking when explicitly requested..codegraph/index directory.Testing