- #1
Genecks
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I don't understand the math of the 10 fold system.
Could someone go into detail of it for me?
I just don't see how that works.
10 db = 100
20 = 1000
30 = 10000?
i don't understand the system here.
Decibels are the measuring unit for sound energy. The absolute threshold for hearing is arbitrarily defined as zero decibels. Every 10 decibels correspond to a ten-fold increase in sound. Thus, normal conversation (60 dB) is 10,000 time louder than a 20 dB whisper.
A decibel is a unit of measurement for the intensity of sound or the power of an electrical signal. It is a logarithmic scale that compares the magnitude of a signal to a reference level.
In psychophysics, decibels are used to measure the perception of sound loudness or the perception of brightness in visual stimuli. They are used to quantify the relationship between physical stimuli and the human perception of those stimuli.
dB SPL (sound pressure level) is a measure of the physical intensity of sound, while dB HL (hearing level) is a measure of the perceived loudness for an individual with normal hearing. dB HL takes into account the varying sensitivity of human hearing at different frequencies.
The decibel scale is logarithmic, meaning that a change of 10 dB is perceived as a doubling or halving of loudness. This means that small changes in decibel levels can result in significant differences in perceived loudness by humans.
The threshold of hearing is the lowest level of sound that can be detected by the human ear, and it is measured at 0 dB SPL. This is equivalent to the softest sound that a person with normal hearing can perceive.