AEC206 Reference Manual
Transfer Functions
A-3
A.4 Transfer Functions
The AEC206 is designed for headphone and earbud
testing, where the sound is closely coupled to the
ear. For free field and diffuse field head related
transfer functions, it is assumed that a head and
torso would be present rather than the actual
geometry of the AEC206. The following transfer
functions are in accordance with ANSI S3.36 (2012).
Free Field Response
Table A.2 Free Field Response
Frequency
(Hz)
Response (dB)
Tolerance
(dB)
100
0.0
±1
125
0.0
±1
160
0.0
±1
200
0.0
±1
250
0.0
±1.3
315
1.0
±1.3
400
1.7
±1.5
500
2.5
±1.5
630
2.7
±1.8
800
4.0
±1.8
1000
4.0
±1.8
1250
3.5
±2
1600
4.8
±2.5
2000
11.8
±2.5
2500
17.5
±2.5
3150
16.8
±2.5
4000
13.8
±2.5
5000
11.9
±3
6300
7.1
±6
800
2.0
±8
10000
4.3
±8
Содержание Larson Davis AEC206
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