willem2 said:You can just solve [itex] B = 10 * log (I/I_0) [/itex] for I with B=90 and B is 70
remember to use the base 10 logarithm and not the natural logarithm
Sound intensity level, also known as acoustic intensity, is a measure of the sound energy per unit area. It is measured in decibels (dB) and represents the perceived loudness of a sound.
Sound intensity level is measured using a device called a sound level meter. This device measures the sound pressure level in decibels (dB) and converts it into a logarithmic scale to represent the sound intensity level.
The sound intensity level is affected by the distance between the sound source and the receiver, the type of medium the sound is traveling through, and the characteristics of the sound source itself (e.g. amplitude, frequency, etc.).
Sound intensity level is used in various fields, such as acoustics, engineering, and medicine. It is used to measure noise pollution, evaluate the effectiveness of hearing protection, and diagnose hearing problems.
Exposure to high levels of sound intensity can cause hearing damage, temporary or permanent hearing loss, and other health issues such as stress, sleep disturbance, and cardiovascular problems. It is important to limit exposure to loud sounds to protect our hearing and overall well-being.