Differences

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

--- ezfit:db_spl_hl_conversion [2009/08/20 10:23]
smayr
+++ ezfit:db_spl_hl_conversion [2010/09/09 15:09] (current)
ajdavis
@@ Line 10: / Line 10: @@
 XAxisName = Frequency (Hz)
 YAxisName = Sound Level (dB)
-legendEntries = Hearing Level (HL), Sound Pressure Level (SPL)
+legendEntries = Hearing Level (HL), Sound Pressure Level (SPL) Free Field
 labelSerie = 3
@@ Line 20: / Line 20: @@
 The calculation is based on the frequency the measurement was taken at.
-^ Frequency (Hz) ^ dB SPL ^ dB HL ^
+^ Frequency (Hz) ^ dB HL ^ dB SPL FF ^
-| 250       |      15|    0 |
+| 250       |          0 |  15|
-| 500       |       9|    0 |
+| 500       |          0 |   9|
-| 1000      |       3|    0 |
+| 1000      |          0 |   3|
-| 2000      |      -3|    0 |
+| 2000      |          0 |  -3|
-| 4000      |      -4|    0 |
+| 4000      |          0 |  -4|
-| 8000      |       8|    0 |
+| 8000      |          0 |   8|
-SPL = Sound Pressure Level
+SPL = Sound Pressure Level Free Field
 HL = Hearing Level
@@ Line 37: / Line 37: @@
 == 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}}
@@ Line 43: / Line 46: @@
 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)}}
 Source: ezFIT software