Page 5 – HP RM500SL User Manual
Page 106
07/05/06
© Etymonic Design Incorporated, 41 Byron Ave., Dorchester, ON, Canada N0L 1G0
Page 5
USA 800-265-2093 519-268-3313 FAX 519-268-3256 www.audioscan.com
Figure 4: Analysis bandwidths of some real-ear analyzers and critical bands for a normal ear. If the
analysis bandwidth is less than a critical band, aided response curves shown to be at threshold (or
UCL) will actually be well above it.
Figure 5: Output (left) and Gain (right) curves for a linear hearing aid, generated using a swept tone
(1) and pink noise analyzed in 1/12 octave bands (2). (Dual view not available in RM500SL)
Analysis Bandwidth Used by Various Analyzers
To Analyze Complex Signals
0
5
10
15
20
25
30
35
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
Band Center Frequency (Hz)
1
0
Log
A
n
a
ly
s
is
B
a
nd
w
id
th
(
H
z)
Verifit / RM500SL - Speechmap
1/24th Octave Analyzers
The Normal Ear - Critical Bands
100 Hz band analyzers