Wolfram|Alpha

Computing...

Input information:

subjective acoustics |  \nsource frequency | 110 Hz  (hertz)\nsource loudness | 60 dB spl  (decibels sound pressure level)


Results:

perceived loudness | 53 phons


Equal loudness contour for 53 phons:

\n(based on ISO 226:1987) Frame


Related information:

sound speed | 343.36 m\/s  (meters per second)\nwavelength | 3.12 meters\nhuman hearing threshold | 22.6 dB spl  (decibels sound pressure level)\n(loudness threshold reference 20 muPa)