📏 How is sound measured?
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Sound can be measured by various quantities:
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- Sound level: Indicates the loudness of the sound, usually in decibels (dB), measured with a sound level meter.
- Frequency: Measures the pitch of a sound, i.e., how many oscillations occur per second (in Hertz, Hz).
- Amplitude: Measures the maximum displacement of a vibration and is associated with loudness.
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A typical measurement procedure:
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1. Placement of a microphone near the sound source
2. Conversion of sound into an electrical signal
3. Analysis using a measuring device or computer -
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