beat frequency
[/biːt ˈfriːkwənsi/]
nounpl: beat frequencies
🇧🇷 frequência de batimento
1. The frequency of the amplitude modulation (beating) that results from the superposition of two waves with slightly different frequencies
When two sound waves with frequencies of 440 Hz and 442 Hz overlap, they produce a beat frequency of 2 Hz.
Quando duas ondas sonoras com frequências de 440 Hz e 442 Hz se sobrepõem, produzem uma frequência de batimento de 2 Hz.
2. In acoustics, the periodic variation in loudness heard when two tones of nearly equal pitch are sounded together
Musicians use beat frequency to tune their instruments by listening for the disappearance of beats.
Músicos usam a frequência de batimento para afinar seus instrumentos ouvindo o desaparecimento dos batimentos.
3. Mathematically, the absolute difference between the frequencies of two interfering waves
The beat frequency equals the absolute difference: |f₁ - f₂|.
A frequência de batimento é igual à diferença absoluta: |f₁ - f₂|.
💡 Beat frequency is a fundamental concept in physics education and music tuning across both Brazilian and American contexts. In Brazil, this term is primarily used in academic and professional settings, particularly in engineering, physics, and music conservatories. It's not commonly used in everyday conversation but is essential terminology for anyone working in acoustics, music production, or physics.
Related Idioms & Phrases
beat frequency zero (when two frequencies are equal)
detecting beats (listening for the amplitude modulation)
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