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Transducers measurements

Présentation

  1. Microphones measurements techniques (measurement microphone data sheet, relative calibration, absolute calibration)
  2. Loudspeakers measurement techniques (advanced approaches in measurements using a sound card and a programming platform, advanced approaches in loudspeaker measure- ments leading to models at higher levels)
  3. Practicals on measurement systems, loudspeakers, headphones and microphones

Objectifs

  • Know the principle of measurement microphones
  • Know the usual techniques for microphone calibration
  • Be able to develop a measuring test bench using a sound card and a programming software
  • Be able to measure different Transducers (microphone, loudspeaker, headphone, earphones) according to the usual standards

Conditions d'admission

Transducers basics, Loudspeaker technology, Matlab for Audio, Signal Analysis I

Examens

MCQ - 2 hours - no documents allowed

Informations complémentaires

Literature References

 

  • Measurement microphones, Bruel & Kjaer, 1994
  • Frederiksen, E. (2013). Acoustic metrology–an overview of calibration methods and their uncertainties. International Journal of Metrology and Quality Engineering, 4(2), 97-107.
  • Stan, G. B., Embrechts, J. J., & Archambeau, D. (2002). Comparison of different impulse response measurement techniques. Journal of the Audio Engineering Society, 50(4), 249- 262.
  • Farina, A. (2000, February). Simultaneous measurement of impulse response and distortion with a swept-sine technique. In Audio Engineering Society Convention 108. Audio Engineering Society.
  • Novak, A., Simon, L., Kadlec, F., & Lotton, P. (2010). Nonlinear system identification using exponential sweptsine signal. IEEE Transactions on Instrumentation and Measurement, 59(8), 2220-2229.
  • International standard IEC 60268-5, Sound system equipment – Part 5: Loudspeakers
  • International standard IEC 60268-7:2010, Sound system equipment - Part 7: Headphones and earphones
  • International standard IEC 62458:2010 Sound system equipment - Electroacoustical transducers - Measurement of large signal parameters

En bref

Crédits ECTS 2.0

Nombre d'heures 26.0

Période de l'année
Automne

Contact(s)

Composante

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On-line course