मा जानुहोस् 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.
अडियोनिष्क्रिय Sampले दर- Block/Hop- अपडेट गर्नुहोस्- CPU-
वार्म-अप 5s Warm-up progress १० सेकेन्ड
Decision is withheld until at least १० सेकेन्ड of analyzed frames accumulate. After that, the classifier uses EMA-smoothed evidence where the 1st harmonic (2×) is weighted above the fundamental.
निर्णय-
आत्मविश्वास-
गुणस्तर-
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
हानिHzdB*कन्फऔसत
60 Hz evidence
हानिHzdB*कन्फऔसत
Weights emphasize the 1st harmonic (2×) over the fundamental. Useful when microphones attenuate 50/60 Hz.