Acoustic filters are devices designed to control sound waves by allowing certain frequencies to pass through while blocking others. They are commonly used in various applications, including audio equipment, telecommunications, and environmental noise control. By selectively filtering frequencies, these devices can enhance sound quality or reduce unwanted noise. There are different types of acoustic filters, such as low-pass, high-pass, and band-pass filters. A low-pass filter allows low frequencies to pass while attenuating higher frequencies, whereas a high-pass filter does the opposite. Band-pass filters permit a specific range of frequencies, making them useful in music production and sound engineering.