[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

spectrum level to RMS

Hello all,

I'm looking for a particular formula related to calibration.  Noise amplitudes are often reported in spectrum level (aka equivalent SPL), i.e., the sound intensity in a 1kHz band, often reported as dB/Hz.  I am calibrating my noise by directly measuring its RMS (in pascals), and calculating dB SPL from there.  I would like a formula that converts spectrum level (dB/Hz) to RMS (assuming you know the bandwidth of the noise), in order to be able to relate spectrum level to my calculated dB SPL.  Any suggestions are appreciated.


  Merri J. Rosen, Ph.D.
  Assistant Professor, Department of Anatomy & Neurobiology
   NEOMED (Northeast Ohio Medical University)
   Office: 330/325-6516     Lab: 330/325-6633

All branding for NEOUCOM will officially change to Northeast Ohio Medical University effective Aug. 15, 2011. Please note the impending change in our website address to www.neomed.edu and email to @neomed.edu.