VT RTA-168A/B Manual Rev. 1.5
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This panel setting will display the C-weighted short equivalent continuous sound level. The
value is time-averaged over continuous 125 ms.
(19)OCT1spl: 1/1 Octave Analysis (Avg. 10) in SPL
Same as OCT1, but with the Y axis displayed in dBSPL instead of dBFS in Spectrum
Analyzer.
(20)OCT3spl: 1/3 Octave Analysis (Avg. 10) in SPL
Same as OCT3, but with the Y axis displayed in dBSPL instead of dBFS in Spectrum
Analyzer.
1.8 More Acoustic Analysis Functions Available in Multi-
Instrument Pro or Above
Multi-Instrument is very versatile and supports a comprehensive set of acoustic
measurements. To highlight a few not mentioned in the previous sections: Reverberation
(including RT60), Speech Intelligibility (including STI), ANSI / CEA-2010 Subwoofer Peak
SPL Test, Cumulative Spectral Decay, Speaker Rub & Buzz, Sound Quality (loudness,
loudness level, sharpness, etc.), etc. Some of these functions are only available in Multi-
Instrument Pro or above. Please refer to Multi-Instrument software manual for more details.
1.9 List of Audio Test WAV Files (AudioTestCD.zip)
Track
Description
Length
(second)
Recommended Panel
setting to be used
1
Pink Noise in Phase (-1dBFS)
298
OCT1 ~ OCT24
OCT1spl, OCT3spl
2
Pink Noise out of Phase (-1dBFS)
298
3
White Noise in Phase (-1dBFS)
298
FRwhite
4
White Noise out of Phase (-1dBFS)
298
5
Log Sweep 20Hz~20kHz (-1dBFS)
60
6
Log Sweep 20Hz~20kHz out of Phase (-1dBFS)
60
7
Linear Sweep 20Hz~20kHz (-1dBFS)
60
8
Linear Sweep 20Hz~20kHz out of Phase (-1dBFS)
60
9
Log Sweep 20Hz~200Hz (-1dBFS)
60
10
Log Sweep 20Hz~200Hz out of Phase (-1dBFS)
60
11
Linear Sweep 20Hz~200Hz (-1dBFS)
60
12
Linear Sweep 20Hz~200Hz out of Phase (-1dBFS)
60
13
Log Sweep 2kHz~20kHz (-1dBFS)
60
14
Log Sweep 2kHz~20kHz out of Phase (-1dBFS)
60
15
Linear Sweep 2kHz~20kHz (-1dBFS)
60
16
Linear Sweep 2kHz~20kHz out of Phase (-1dBFS)
60
17
Log Sweep 20Hz~20kHz (-1dBFS)
0.683
FRswlog
18
Log Sweep 20Hz~20kHz out of Phase (-1dBFS)
2.73
19
Linear Sweep 20Hz~20kHz (-1dBFS)
0.683
FRswlin
20
Linear Sweep 20Hz~20kHz out of Phase (-1dBFS)
2.73
21
MultiTone32Octave1/3 in Phase (-1dBFS)
60
FRmt
22
MultiTone32Octave1/3 out of Phase (-1dBFS)
60
23
1kHz (0dBFS)
60
24
1kHz (-1dBFS)
60
THDcd
