Overview
Rain-Mode Example
Rain‑Mode tones appear when the colony shifts into energy‑conservation behaviour during wet or humid weather.
These tones are softer, rounded, and slightly muted compared to normal activity patterns.
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Softened fundamental — the base tone drops slightly in intensity.
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Gentle midband activity — bees reduce wing‑based modulation.
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Rounded harmonics — higher multiples (2x, 3x, 4x) become smoother and less pronounced.
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Calm posture — bees cluster more tightly, reducing airflow noise.
Tone Characteristics
What This Tone Indicates
Rain‑Mode reflects a colony that is conserving energy and maintaining warmth. It is not a stress tone — it’s a natural, adaptive behaviour that helps the hive stay stable during unfavourable weather.
Acoustic Snapshot
A typical Rain‑Mode recording feels like a soft, steady hum with minimal modulation. The hive sounds “rounded,” almost cushioned, with fewer sharp transitions or wing‑flutter signatures.
Behavioural Notes
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Bees remain inside the hive.
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Foraging pauses.
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Ventilation activity reduces.
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Movement becomes slower and more coordinated.
Compare With
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Smooth Calm — similar softness but occurs during warm, stable weather.
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Wind‑Modulated — has more airflow shaping and harmonic movement.
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Steady‑Work — more rhythmic, active, and structured.
Rain-Mode Example slice
Fundamental: ~60 Hz Midband: softened Harmonics: rounded (2×, 3×) UMB: low activity