The Effects of Voice-Coil Axial Rest Position on Amplitude Modulation Distortion in Loudspeakers

Mihelich RJ. The Effects of Voice-Coil Axial Rest Position on Amplitude Modulation Distortion in Loudspeakers. In: AES Convention 113. Audio Engineering Society; 2002. Paper 5640. Available from: https://aes.org/publications/elibrary-page/?id=11286

@inproceedings{Mihelich2002_11286,
  author = {Mihelich, Ryan J.},
  title = {{The Effects of Voice-Coil Axial Rest Position on Amplitude Modulation Distortion in Loudspeakers}},
  booktitle = {AES Convention 113},
  note = {Paper 5640},
  year = {2002},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11286}
}

TY  - CPAPER
TI  - The Effects of Voice-Coil Axial Rest Position on Amplitude Modulation Distortion in Loudspeakers
AU  - Mihelich, Ryan J.
T2  - AES Convention 113
M1  - Paper 5640
PY  - 2002
DA  - 2002/10/06
UR  - https://aes.org/publications/elibrary-page/?id=11286
PB  - Audio Engineering Society
LA  - en
AB  - The magnetic field in the air gap of a conventional loudspeaker motor is most often an asymmetric nonlinear function of axial position. Placement of the voice-coil into this asymmetrical field yields an asymmetric nonlinear force-factor, Bl, which is a primary cause of amplitude modulation distortion in loudspeakers. Adjustment of the rest position of the voice-coil in this field can alter the nature of this modulation distortion. Common practice is to nominally set the voice-coil at the geometric center of the gap or at the position generating maximum Bl. A time-domain nonlinear simulator has been used to investigate effects of voice-coil placement in an asymmetric flux field on amplitude modulation distortion.
ER  -