Whether or not 400Hz is considered bass is a matter of some debate. 400Hz is a relatively high frequency for bass, and most people would consider it to be more in the midrange. However, there is no definitive answer to this question, as it depends on a number of factors, including the genre of music, the other instruments involved, and the personal preferences of the listener.
In general, bass is considered to be the lowest frequency range of sound, typically ranging from 20Hz to 250Hz. However, some people consider bass to extend up to 400Hz or even higher. This is especially true in genres of music such as electronic dance music (EDM) and hip hop, which often feature very deep bass sounds.
Ultimately, whether or not 400Hz is considered bass is a matter of personal preference. If you enjoy listening to music with deep bass sounds, then you may consider 400Hz to be bass. However, if you prefer music with a more traditional bass sound, then you may consider 400Hz to be more in the midrange.
Here is a more detailed look at the frequency spectrum of sound:
- 20Hz to 60Hz: Sub-bass
- 60Hz to 250Hz: Low bass
- 250Hz to 500Hz: Mid-bass
- 500Hz to 2kHz: Midrange
- 2kHz to 5kHz: Upper midrange
- 5kHz to 20kHz: Treble
As you can see, 400Hz falls in the mid-bass range. However, it is very close to the boundary between the mid-bass and low bass ranges. This is why some people consider it to be bass, while others consider it to be more in the midrange.
It is also important to note that the frequency spectrum is not a linear scale. This means that a small change in frequency can result in a big change in the sound. For example, a 400Hz sound will sound very different from a 500Hz sound, even though they are only 100Hz apart.
This is why it is important to consider the genre of music and the other instruments involved when determining whether or not 400Hz is considered bass. For example, in a rock band, the bass guitar would typically be playing notes in the low bass range. However, in an EDM song, the bass synthesizer might be playing notes in the mid-bass range, including 400Hz.
Ultimately, the best way to determine whether or not 400Hz is considered bass is to listen to the music and decide for yourself. If you enjoy the sound, then that is all that matters.

