Swept Electroacoustic Measurements of Harmonic Distortion, Difference-Frequency and Intermodulation Distortion

Thomsen C, Møller H. Swept Electroacoustic Measurements of Harmonic Distortion, Difference-Frequency and Intermodulation Distortion. In: AES Convention 52. Audio Engineering Society; 1975. Paper 1068. Available from: https://aes.org/publications/elibrary-page/?id=2364

@inproceedings{Thomsen1975_2364,
  author = {Thomsen, Carsten and Møller, Henning},
  title = {{Swept Electroacoustic Measurements of Harmonic Distortion, Difference-Frequency and Intermodulation Distortion}},
  booktitle = {AES Convention 52},
  note = {Paper 1068},
  year = {1975},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=2364}
}

TY  - CPAPER
TI  - Swept Electroacoustic Measurements of Harmonic Distortion, Difference-Frequency and Intermodulation Distortion
AU  - Thomsen, Carsten
AU  - Møller, Henning
T2  - AES Convention 52
M1  - Paper 1068
PY  - 1975
DA  - 1975/10/06
UR  - https://aes.org/publications/elibrary-page/?id=2364
PB  - Audio Engineering Society
LA  - en
AB  - In music, many frequencies occur simultaneously, therefore distortion tests which are relevant to music must be carried out using more than one frequency. A system is introduced for automatic swept measurement of harmonic distortion, difference frequency and intermodulation distortion in the range 2 Hz-200 kHz. The relationship of high-frequency (up to 200 kHz) IM and difference-frequency distortion to transient intermodulation (TIM) is explored. The system consists of a sweeping two-tone generator and a heterodyne analyzer phase-locked to the selected distortion components up to the fifth order. Typical dynamic range permits measurements down to 0.01 % in the harmonic and difference-frequency modes, and to 0.001% in the IM mode.
ER  -