What frequency range does 'bass' refer to?

Bass refers to the low frequencies of a sound source, typically ranging from about 20 Hz to 250 Hz. These frequencies are essential in music and audio production as they provide depth and fullness to the overall sound. In many musical genres, bass supports the harmonic structure and rhythm, anchoring the emotional and physical response of the audience. Understanding the bass frequency range is important for sound engineers and musicians as it influences how music is mixed and perceived, ensuring that the low-end sounds are balanced with higher frequencies for a rich auditory experience.

The other choices focus on different aspects of sound frequencies: the highest frequencies relate to treble, while mid-range frequencies are crucial for vocals and some instruments, and variable frequencies in sound mixing refer to adjustments made in the mixing process rather than a specific range.