Low Level Audio Signal Transfer through Transformers Conflicts with Permeabily Behavior Inside their Cores

van der Veen M. Low Level Audio Signal Transfer through Transformers Conflicts with Permeabily Behavior Inside their Cores. In: AES Convention 122. Audio Engineering Society; 2007. Paper 7125. Available from: https://aes.org/publications/elibrary-page/?id=14110

@inproceedings{vanderVeen2007_14110,
  author = {van der Veen, Menno},
  title = {{Low Level Audio Signal Transfer through Transformers Conflicts with Permeabily Behavior Inside their Cores}},
  booktitle = {AES Convention 122},
  note = {Paper 7125},
  year = {2007},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14110}
}

TY  - CPAPER
TI  - Low Level Audio Signal Transfer through Transformers Conflicts with Permeabily Behavior Inside their Cores
AU  - van der Veen, Menno
T2  - AES Convention 122
M1  - Paper 7125
PY  - 2007
DA  - 2007/05/06
UR  - https://aes.org/publications/elibrary-page/?id=14110
PB  - Audio Engineering Society
LA  - en
AB  - At the threshold of audibility, the signal and flux density levels in an amplifier with audio transformers are very small. At those levels the relative magnetic permeability of the iron transformer core collapses and the inductance of the transformer becomes very small. The impedances connected to the transformer plus its signal level and frequency dependant inductance behave as a high pass filter which corner frequencies slip into the audio bandwidth, resulting in a non linear signal transfer through the transformer. This research explains deviations in the reproduction of micro details at the threshold of audibility.
ER  -