An Improved Weighting Curve Based on Equal-Loudness Contour

Heo I, Sung KM. An Improved Weighting Curve Based on Equal-Loudness Contour. In: AES Conference: 34th International Conference: New Trends in Audio for Mobile and Handheld Devices. Audio Engineering Society; 2008. Paper 22. Available from: https://aes.org/publications/elibrary-page/?id=14432

@inproceedings{Heo2008_14432,
  author = {Heo, Inseok and Sung, Koeng-Mo},
  title = {{An Improved Weighting Curve Based on Equal-Loudness Contour}},
  booktitle = {AES Conference: 34th International Conference: New Trends in Audio for Mobile and Handheld Devices},
  note = {Paper 22},
  year = {2008},
  month = aug,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14432}
}

TY  - CPAPER
TI  - An Improved Weighting Curve Based on Equal-Loudness Contour
AU  - Heo, Inseok
AU  - Sung, Koeng-Mo
T2  - AES Conference: 34th International Conference: New Trends in Audio for Mobile and Handheld Devices
M1  - Paper 22
PY  - 2008
DA  - 2008/08/06
UR  - https://aes.org/publications/elibrary-page/?id=14432
PB  - Audio Engineering Society
LA  - en
AB  - In the real world, there are plenty of sound sources around us. Most of audio system desires to reproduce the sound sources as natural as possible. In measuring sound pressure level, we desire to obtain the value as similar as our perceived level. With many intense works done before, some researchers found that there is a relationship between perceived loudness level and measured sound level. In the theoretical words, the sensitivity of hearing varies as the frequency varies. Hence, a kind of weighting that represents human auditory system well is required to get more reasonable sound pressure level when measuring sound pressure level with a sort of machine such as a sound level meter. With this sense, some weighting functions have been developed and internationally standardized. Examples are A, B and C weighting. Such weighting functions are based on equal-loudness-level contour which is based on our human auditory characteristic called as equal-loudness relationship. At low loudness levels, low-frequency components don¡¯t have much contribution to the total loudness of the sound than those of high-frequency. So an A-weighting is commonly used. At higher level, applying another weighting gives closer answer to our perceived level. Thus, it would be very useful if we use only one weighting equation no matter how big the loudness level is. From this sense, a new weighting equation is achieved in this paper. It was constructed on the basis of the equal-loudness-level contour which internationally standardized in the document, ISO226:2003.
ER  -