Coherence-Based, Wide-Band, Signal-to-Distortion Ratio versus Total Harmonic Distortion of Slightly Non-Linear Audio Systems

Preis D, Gregg R. Coherence-Based, Wide-Band, Signal-to-Distortion Ratio versus Total Harmonic Distortion of Slightly Non-Linear Audio Systems. In: AES Convention 109. Audio Engineering Society; 2000. Paper 5262. Available from: https://aes.org/publications/elibrary-page/?id=9076

@inproceedings{Preis2000_9076,
  author = {Preis, Douglas and Gregg, R.},
  title = {{Coherence-Based, Wide-Band, Signal-to-Distortion Ratio versus Total Harmonic Distortion of Slightly Non-Linear Audio Systems}},
  booktitle = {AES Convention 109},
  note = {Paper 5262},
  year = {2000},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=9076}
}

TY  - CPAPER
TI  - Coherence-Based, Wide-Band, Signal-to-Distortion Ratio versus Total Harmonic Distortion of Slightly Non-Linear Audio Systems
AU  - Preis, Douglas
AU  - Gregg, R.
T2  - AES Convention 109
M1  - Paper 5262
PY  - 2000
DA  - 2000/09/06
UR  - https://aes.org/publications/elibrary-page/?id=9076
PB  - Audio Engineering Society
LA  - en
AB  - A quantitative comparison is given between the signal-to-distortion ratio (SDR) for wide-band operation of slightly nonlinear electronic circuits or systems and that derived from conventional total harmonic distortion (THD) for single-frequency excitation at the equivalent input-power level. Simulated or measured SDRs are presented graphically for three different, commonly encountered nonlinearities (soft compression, hard clipping and slew-rate limiting), each operated over a range of successively higher input-power levels. The results indicate that for slight to moderate nonlinear operation, the wide-band SDR based on coherence analysis of white-noise excitation can be from 2 to 20 dB worse than that predicted from the THD produced by a single sine wave.:
ER  -