Alpine UTX-M08S - Page 18

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Example 2: all seats
Adjust the time correction levels of all speakers to nearly the same.
1 Seat at the listener location (driver seat etc.) and measure the distance between the head and each speaker
(meters).
2 Calculate the difference of distance correction value between the farthest speaker and other speakers.
L=(distance from the farthest speakers)–(distance from other speaker)
These values are the time correction values of different speakers. By setting these values, each speaker's sound
can reach the listener's location simultaneously with the sounds of other speakers.
List of time correction values
Delay number
Time difference
(ms)
Distance (cm) Distance (inch) Delay number
Time difference
(ms)
Distance (cm) Distance (inch)
0
0.00
0.00
0.00
32
0.32
11.07
4.32
1
0.01
0.34
0.10
33
0.33
11.41
4.45
2
0.02
0.69
0.24
34
0.34
11.76
4.59
3
0.03
1.03
0.37
32
0.32
11.07
4.32
4
0.04
1.38
0.51
33
0.33
11.41
4.45
5
0.05
1.72
0.64
34
0.34
11.76
4.59
6
0.06
2.07
0.78
35
0.35
12.10
4.72
7
0.07
2.42
0.92
36
0.36
12.45
4.86
8
0.08
2.76
1.05
37
0.37
12.80
5.00
9
0.09
3.11
1.19
38
0.38
13.14
5.13
10
0.10
3.45
1.32
39
0.39
13.49
5.27
11
0.11
3.80
1.46
40
0.40
13.83
5.40
12
0.12
4.15
1.60
41
0.41
14.18
5.54
13
0.13
4.49
1.73
42
0.42
14.53
5.68
14
0.14
4.84
1.87
43
0.43
14.87
5.81
15
0.15
5.18
2.00
44
0.44
15.22
5.95
16
0.16
5.53
2.14
45
0.45
15.56
6.08
17
0.17
5.88
2.28
46
0.46
15.91
6.22
18
0.18
6.22
2.41
47
0.47
16.26
6.36
19
0.19
6.57
2.55
48
0.48
16.60
6.49
20
0.20
6.91
2.68
49
0.49
16.95
6.63
21
0.21
7.26
2.82
50
0.50
17.29
6.76
22
0.22
7.61
2.96
51
0.51
17.64
6.90
23
0.23
7.95
3.09
52
0.52
17.99
7.04
24
0.24
8.30
3.23
53
0.53
18.33
7.17
25
0.25
8.64
3.36
54
0.54
18.68
7.31
26
0.26
8.99
3.50
55
0.55
19.02
7.44
27
0.27
9.34
3.64
56
0.56
19.37
7.58
28
0.28
9.68
3.77
57
0.57
19.72
7.72
29
0.29
10.03
3.91
58
0.58
20.06
7.85
30
0.30
10.37
4.04
59
0.59
20.41
7.99
31
0.31
10.72
4.18
60
0.60
20.75
8.12