ID3 Tag Validator Application User Manual
Release 1.8 Revision F
19
Nielsen Confidential
FD SID
9151
: NAES 2 count = 160, NAES 6 count = 166
PC SID
9151
: NAES 2 count = 5 , NAES 6 count = 0
PC SID
9051
: NAES 2 count = 110 , NAES 6 count = 120
Figure 4 – SID List Contents
Note that some streams may have up to three different
FD SID
s in the same file
segment. However, there should be only one
PC SID
in a single portion of a specific file.
“Single portion” refers to a commercial, a program segment, etc.
Table 4 shows the interval in seconds at which we would ideally expect to see a specific
SID within any segment of the stream with the listed characteristics. The first three rows
in the table show the most common configurations.
Table 4 – Interval in Seconds
Segment Type
NAES 2
NAES 6
PC
FD
PC
FD1
FD2
FD3
PC-Only
4
N/A
4.8
N/A
N/A
N/A
PC + FD
4
4
4.8
4.8
N/A
N/A
FD Only
N/A
2
N/A
4.8
N/A
N/A
FD+FD
N/A
2
N/A
4.8
4.8
N/A
FD+FD+FD
N/A
2
N/A
4.8
4.8
4.8
PC+FD+FD
4
4
4.8
4.8
4.8
N/A
Examples
For a 15-minute segment of audio that has only a PC SID of
100
, expect to see a SID List
similar to this:
PC SID
100
: NAES 2 count = 225, NAES 6 count = 187
For a 15-minute segment of audio that has a PC SID of
100
and an FD SID of
200
, expect
to see a SID List similar to this:
PC SID
100
: NAES 2 count = 225, NAES 6 count = 187
FD SID
200
: NAES 2 count = 225, NAES 6 count = 187
For a 15-minute segment of audio that has only an FD SID of
200
, expect to see a SID
List similar to this:
FD SID
200
: NAES 2 count = 450, NAES 6 count = 187
Diagnostic Tips
In evaluating the SID List, remember that the process of encoding and decoding NAES
watermarks does not always produce ideal results. The following factors may significantly
reduce the number of NAES watermarks detected:
