19-02-2024, 09:23 AM
Hi Graham
A difference of 1.5 dB is pretty small given some measurement uncertainty. I doubt if the ear can percieve a difference much less than this.
If your phone app can give an audio spectral display that might tell you more about the noise character.
A difference of 1.5 dB is pretty small given some measurement uncertainty. I doubt if the ear can percieve a difference much less than this.
If your phone app can give an audio spectral display that might tell you more about the noise character.