Tlolela ho viewer

Mains Frequency Estimator

Harmonics-aware, EMA averaging (up to 60s), and a 5s warm-up gate before decisions. **Prefers 2× (100/120 Hz) over fundamentals** to handle mic high-pass filtering.
Audioe se nang letho Sample sekhahla- Block/Hop- Nchafatso- CPU-
Iphuthumatsa 5s Warm-up progress 0.0s
Decision is withheld until at least 5.0s of analyzed frames accumulate. After that, the classifier uses EMA-smoothed evidence where the 1st harmonic (2×) is weighted above the fundamental.
Qeto-
Tshepo-
Boleng-
50 Hz series
60 Hz series
Spectrum bars
Thick = fundamental; thin = harmonics; faint = detected peak offset
50-score (avg)-
60-score (avg)-
50 Hz evidence
KotsiHzdB*ConfAvg
60 Hz evidence
KotsiHzdB*ConfAvg
Weights emphasize the 1st harmonic (2×) over the fundamental. Useful when microphones attenuate 50/60 Hz.