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MICROPHONE AND SOUND LEVEL METER CALIBRATION IN FREE FIELD BY A NEW METHOD

Zemar M. Defilippo Soares, Samir Gerges, Michael Vorländer
  • Abstract:
    A new method of calibration of microphones and sound level meter based on the sequential comparison method is presented. The proposed method allows to determine the sensibility in free-field without the use of the expensive anechoic chamber. The results here presented are in accordance with the IEC 61672-3.
  • Keywords:
    microphone, sound level meter, free field, sweep sine, windowing
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  • DOI:
    _unreg_wc-2006.TC8-027

Event details:

  • IMEKO TC:
  • Event name:
    XVIII IMEKO World Congress
  • Title:

    Metrology for a Sustainable Development

  • Place:
    Rio de Janeiro, BRAZIL
  • Time:
    17 September 2006 - 22 September 2006