Graphing, Interpretation, and Comparison of the Results of Loudspeaker Nonlinearity Measurement

Czerwinski E, Alexandrov S, Voishvillo A, Terekhov A. Graphing, Interpretation, and Comparison of the Results of Loudspeaker Nonlinearity Measurement. In: AES Convention 113. Audio Engineering Society; 2002. Paper 5639. Available from: https://aes.org/publications/elibrary-page/?id=11242

@inproceedings{Czerwinski2002_11242,
  author = {Czerwinski, Eugene and Alexandrov, Sergei and Voishvillo, Alexander and Terekhov, Alexander},
  title = {{Graphing, Interpretation, and Comparison of the Results of Loudspeaker Nonlinearity Measurement}},
  booktitle = {AES Convention 113},
  note = {Paper 5639},
  year = {2002},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11242}
}

TY  - CPAPER
TI  - Graphing, Interpretation, and Comparison of the Results of Loudspeaker Nonlinearity Measurement
AU  - Czerwinski, Eugene
AU  - Alexandrov, Sergei
AU  - Voishvillo, Alexander
AU  - Terekhov, Alexander
T2  - AES Convention 113
M1  - Paper 5639
PY  - 2002
DA  - 2002/10/06
UR  - https://aes.org/publications/elibrary-page/?id=11242
PB  - Audio Engineering Society
LA  - en
AB  - Harmonic distortion and THD do not convey sufficient information about nonlinearity in loudspeakers and horn drivers. Multitone stimulus and Gaussian noise produce more informative nonlinear response. Reaction to Gaussian noise can be transformed into coherence or incoherence function. They provide information about nonlinearity in the form of 'easy-to-grasp' frequency-dependent curves. Alternatively, the results of multitone measurement are difficult to interpret, compare, and overlay. New method of depicting the results of multitone measurements has been developed. The distortion products are averaged in a moving frequency window. The result of measurement is a single continuous frequency-dependent curve that takes into account the level of distortion products and their 'density'. The curves can be easily overlaid and compared. Future development of a new method may lead to correlation between the level of distortion curves and the audibility of nonlinear distortion.
ER  -