A New Method for Measuring Distortion using a Multitone Stimulus and Non-Coherence

Brunet P, Temme S. A New Method for Measuring Distortion using a Multitone Stimulus and Non-Coherence. In: AES Convention 121. Audio Engineering Society; 2006. Paper 6877. Available from: https://aes.org/publications/elibrary-page/?id=13711

@inproceedings{Brunet2006_13711,
  author = {Brunet, Pascal and Temme, Steve},
  title = {{A New Method for Measuring Distortion using a Multitone Stimulus and Non-Coherence}},
  booktitle = {AES Convention 121},
  note = {Paper 6877},
  year = {2006},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13711}
}

TY  - CPAPER
TI  - A New Method for Measuring Distortion using a Multitone Stimulus and Non-Coherence
AU  - Brunet, Pascal
AU  - Temme, Steve
T2  - AES Convention 121
M1  - Paper 6877
PY  - 2006
DA  - 2006/10/06
UR  - https://aes.org/publications/elibrary-page/?id=13711
PB  - Audio Engineering Society
LA  - en
AB  - A new approach for measuring distortion based on dual-channel analysis of non-coherence between a stimulus and response is presented. This method is easy to implement, provides a continuous distortion curve against frequency, and can be used with a multitone stimulus, noise, or even music. Multitone is a desirable test signal for fast frequency response measurements and also for assessing system non-linearities. However, conventional single-channel multitone measurements are challenging because the number of intermodulation tones grows exponentially with the number of stimulus tones and makes it extremely difficult to separate harmonics from intermodulation products. By using dual-channel measurement techniques, only well-known, standard signal processing techniques are used, resulting in simplicity, accuracy and repeatability.
ER  -