Anc Characterization - AMS AS3460 User Manual

11

ANC Characterization

In order to provide all the necessary input for the Flex Project, Characterization measurements of the
headphones / earbuds have to be done.
For basic ANC headphones this is done using either an in-ear coupler like the 711 coupler or an
artificial head, like the GRAS 45.
To ensure a good measurement outcome, following points have to be controlled:
●
The earbud has to have a good sealing in the coupler
●
Leakage during measurement has to be avoided
●
A good and tight fit of the headphone on the artificial head has to be ensure
11.1.1 Measurement
The measurement can be performed with the Audio-Precison Templates
"Hybrid_Characterization.approjx" or "Hybrid_Characterization_FB_FF_seperate.approjx", which will
be provided by ams.
The measurement setup looks as follows:
Figure 124:
ANC Characterization Measurement Setup
Demo Kit Manual • PUBLIC
UG000480 • v3-00 • 2021-Nov-08
Document Feedback
AS3460
ANC Characterization
│ 111
126