YOU SAID:

But it's just that range around 4000 Hz

INTO JAPANESE

しかし、それは4000 Hz前後の範囲だけです

BACK INTO ENGLISH

However, it is only in the range around 4000 Hz

INTO JAPANESE

ただし、4000 Hz前後の範囲でしかない。

BACK INTO ENGLISH

However, it is only in the range of around 4000Hz.

INTO JAPANESE

ただし、4000 Hz前後の範囲でしかない。

BACK INTO ENGLISH

However, it is only in the range of around 4000Hz.