On the decibel scale, 0 dB is the smallest audible sound. Near silence is expressed as 0 dB but a sound measured at 10 dB is actually 10 times louder. For example, every increase of 10 dB on the decibel scale is equal to a 10-fold increase in sound pressure level (SPL). This scale is called the decibel scale or dB scale. This is a way of counting or measuring something that increases rapidly, or exponentially. Screen your hearing in less than 5 minutes. This is referred to as noise-induced hearing loss.

Anything above 85 dBA can damage the small hair cells in your ears and affect your hearing health, either over time orif its loud enoughimmediately. Therefore, a logarithmic scale is used to express sound levels meaningfully in more flexible numbers rather than a linear one. What about 70 Three factors come into play: intensity, duration, and distance. The higher up the decibel scale at which a sound is measured, the more intense the sound wave is (or louder the noise). What is the Decibel Scale The human ear has the ability to handle an immense range of different sound levels. On the decibel scale, silence (no sound) would measure close to 0 decibels (dB). That includes things like whispers (30 dB), refrigerators (40 dB). Sound level, in dB, is plotted on the left side of the graph and ranges. Frequency is plotted at the top of the graph, ranging from low frequencies (250 Hz) on the left to high frequencies (8000 Hz) on the right. Sound levels damaging the cochlea are indicated here, regarding the European Legislation. An emphasis is made on the time limit exposure for each dangerous level. This substantial reduction in protection occurs because with the logarithmic scale used to measure decibels, a 10-times increase in noise energy occurs for each. Noise Measurement Decibels are units of measurement used to measure the intensity of sound waves. Safe decibel levels are those that fall at or below 70 dB. The graph to the left represents a blank audiogram illustrates the degrees of hearing loss listed above.

Decibel scale hearing damage