Sound Levels - LG MULTI V ARNU07GTUA4 Engineering Product Data Book

9. Sound Levels

9.1 Sound Pressure Levels
Overall
Microphone
❈ Measuring place : Anechoic chamber
Model
ARNU07GQAA4
ARNU09GQAA4
ARNU12GQAA4
ARNU15GQAA4
ARNU07GQAA4
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63
125 250 500 1000
Octave Band Center Frequency (Hz)
ARNU15GQAA4
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000
Octave Band Center Frequency (Hz)
14 _
Console
1m
Sound Levels dB(A)
H M
37 34
37 34
39 34
42 37
ARNU09GQAA4
80
70
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
NC-25 20
Approximate
NC-20
Hearing
Threshold
NC-15
10
2000 4000 8000 63 125
Octave Band Center Frequency (Hz)
80
70
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
20
NC-25
Approximate
NC-20
Hearing
Threshold
NC-15
10
2000 4000 8000 63 125
Octave Band Center Frequency (Hz)
Notes:
1. Sound measured at each 1m away from the front and bottom of the unit
2. Operating condition
- Power source : 220-240V 50Hz / 220V 60Hz
- Cooling : Indoor temperature (27°C DB, 19°C WB),
Outdoor temperature (35°C DB, 24°C WB)
- Heating : Indoor temperature (20°C DB, 15°C WB),
Outdoor temperature (7°C DB, 6°C WB)
3. Reference accoustic pressure 0dB = 20μPa
4. Sound level will vary depending on a range of factors such as
the construction(acoustic absorption coefficient) of particular
room in which the equipment in installed.
L
28
28
28
31
80
70
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
NC-25 20
NC-20
NC-15
10
250 500 1000 2000 4000 8000
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
250 500 1000 2000 4000 8000
ARNU12GQAA4
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
Approximate
NC-20
Hearing
Threshold
NC-15
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)