110Hz

110Hz (110 hertz) is a frequency that lies within the audible range for humans. It corresponds to a wavelength of about 3.06 meters in air at standard temperature and pressure, and it produces a sound that is perceived as a low, stable tone. In music, 110Hz is the pitch of the note A two octaves below the standard pitch A4 (440Hz). This pitch is commonly used for tuning string instruments, particularly bass guitars and double basses, and serves as a reference point for the tuning of many lower-pitched instruments.

In electronic and communication systems, 110Hz may be employed as a test frequency for audio equipment and as a reference tone in some radio and public address systems. The frequency is also used in signal processing for certain types of filtering and modulation techniques. For example, a 110Hz sine wave can be used to calibrate audio amplifiers or to generate a simple tone in software synthesizers for educational purposes.

In acoustical research, 110Hz is often used to examine the human hearing response to low-frequency sounds and to study the acoustic properties of resonant cavities. It is also a frequency that can be perceived as a steady hum, which can aid in the design of auditory alarms or cautionary signals that require low-frequency emphasis.