Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
ezfit:db_spl_hl_conversion [2009/08/21 13:56]
smayr
ezfit:db_spl_hl_conversion [2010/09/09 15:09] (current)
ajdavis
Line 10: Line 10:
 XAxisName = Frequency (Hz) XAxisName = Frequency (Hz)
 YAxisName = Sound Level (dB) YAxisName = Sound Level (dB)
-legendEntries = Hearing Level (HL), Sound Pressure Level (SPL) +legendEntries = Hearing Level (HL), Sound Pressure Level (SPL) Free Field
 labelSerie = 3 labelSerie = 3
  
Line 20: Line 20:
 The calculation is based on the frequency the measurement was taken at. The calculation is based on the frequency the measurement was taken at.
  
-^ Frequency (Hz) ^ dB HL ^ dB SPL ^ +^ Frequency (Hz) ^ dB HL ^ dB SPL FF 
 | 250                0 |  15| | 250                0 |  15|
 | 500                0 |   9| | 500                0 |   9|
Line 28: Line 28:
 | 8000      |          0 |   8| | 8000      |          0 |   8|
  
-SPL = Sound Pressure Level+SPL = Sound Pressure Level Free Field
 HL = Hearing Level HL = Hearing Level
  
Line 37: Line 37:
 == Examples == == Examples ==
  
-**Audiogram using HL**+=== Audiogram dB HL vs. dB SPL === 
 +{{:ezfit:ezfit-audiogram-dbhl-vs-dbspl.jpg|Audiogram using dB HL vs. dB SPL}} 
 + 
 +=== Audiogram using HL ==
  
 {{:ezfit:audiogram-sample.jpg|Audiogram using HL. Source: Wikipedia, http://en.wikipedia.org/wiki/File:Audio23.jpg}} {{:ezfit:audiogram-sample.jpg|Audiogram using HL. Source: Wikipedia, http://en.wikipedia.org/wiki/File:Audio23.jpg}}
Line 43: Line 46:
 Source: Wikipedia, http://en.wikipedia.org/wiki/File:Audio23.jpg Source: Wikipedia, http://en.wikipedia.org/wiki/File:Audio23.jpg
  
----- +=== Target Curves using SPL ===
-{{:ezfit:ezfit-audiogram.jpg|Sample Audiogram using HL}} +
- +
-Source: ezFIT software +
- +
----- +
- +
-**Target Curves using SPL**+
  
 {{:ezfit:ezfit-targetcurves.jpg|Sample Target Curves (thick dotted lines) and related Response Curves (thin continuous lines)}} {{:ezfit:ezfit-targetcurves.jpg|Sample Target Curves (thick dotted lines) and related Response Curves (thin continuous lines)}}
  
 Source: ezFIT software Source: ezFIT software