15dB
15dB is a unit of logarithmic measurement often used in acoustics and electronics to express a ratio between two power or intensity levels. In the context of sound, decibels (dB) are commonly used to measure sound pressure level. A 15dB increase represents a significant change in loudness. Specifically, a 10dB increase corresponds to a tenfold increase in sound intensity, and a 20dB increase corresponds to a hundredfold increase. Therefore, a 15dB increase signifies a sound intensity that is approximately 31.6 times greater than the original sound. This level of increase can be perceived as a substantial difference in perceived loudness by the human ear.
In electronics, dB is used to express gain or loss in signal strength. A 15dB gain means