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Recent content by ctris

  1. ctris

    Low Noise Microphone

    Anyone, come across with low noise microphone. Our company is looking for a low noise microphone. We are intended to use it in our semi anachoic chamber to measure hard disk motor sound power levels from 20Hz to 20kHz. what does low noise microphone mean and whats the difference between low...
  2. ctris

    1/12 Octave band & 1/24 ocatve band A-weighted values

    Thanks Greg for the information. Appreciate your help. Cheers Tris
  3. ctris

    1/12 Octave band & 1/24 ocatve band A-weighted values

    Anybody can help on the A-weighted values for 1/12 and 1/24 octave band centre frequency.
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