Amplitude and Frequency Modulation Distortion of a Loudspeaker

Suzuki H, Shibata S. Amplitude and Frequency Modulation Distortion of a Loudspeaker. In: AES Convention 74. Audio Engineering Society; 1983. Paper 1998. Available from: https://aes.org/publications/elibrary-page/?id=11764

@inproceedings{Suzuki1983_11764,
  author = {Suzuki, Hideo and Shibata, Shigenori},
  title = {{Amplitude and Frequency Modulation Distortion of a Loudspeaker}},
  booktitle = {AES Convention 74},
  note = {Paper 1998},
  year = {1983},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11764}
}

TY  - CPAPER
TI  - Amplitude and Frequency Modulation Distortion of a Loudspeaker
AU  - Suzuki, Hideo
AU  - Shibata, Shigenori
T2  - AES Convention 74
M1  - Paper 1998
PY  - 1983
DA  - 1983/10/06
UR  - https://aes.org/publications/elibrary-page/?id=11764
PB  - Audio Engineering Society
LA  - en
AB  - The measurement techniques and the causes of amplitude and frequency modulation distortions are discussed using a two-way coaxial type loudspeaker system. The distortion due to amplitude modulation is caused by the dependence of the radiation efficiency of the high frequency driver on the displacement of the diaphragm of the low frequency driver. The distortion due to frequency modulation seems to be produced when the high frequency sound has a non-zero particle velocity in the axis direction at the surface of the low frequency driver's diaphragm. The symmetry of the sidebands of the summed modulation distortion (intermodulation distortion) indicates that the amplitude and frequency modulation distortions are 90 deg out of phase with each other.
ER  -