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VT RTA-168C
VT-RTA-168C
PC based USB Real Time Acoustic Analyzer, Sound Level Meter, Distortion Analyzer, Polarity Tester ...                            Manual
VT RTA-168C     US$279.95     Free Express Shipping

VT RTA-168C, a PC based USB Real Time Anayzer, Sound Level Meter, Distortion Analyzer, Acoustic Analyzer
Download and try the fully functional Multi-Instrument software using your sound card as the ADC and DAC device!


1. Package Contents

1) USB measurement microphone and its accessories (a windshield, a microphone clip and a small microphone stand)
2) USB cable (3 m)
3) CD (contains the copy-protected Multi-Instrument Software)
4) USB hardkey (contains a Multi-Instrument Standard License)
5) Audio Test WAV files (contains a list of audio test tones and noises)  (download at AudioTestCD.zip or AudioTestCD.rar)
6) 1/8” TRS cable (1.8m)
7) Black Soft Pouch Case
8) Unique Sound Level Calibration Data (in CD)
9) Unique Microphone On-Axis and 90-degree Calibration Data (in CD)



2. Specifications

 
Transducer Type 6mm electret condenser
Polar Pattern Omni-directional
Frequency Range 20Hz ~ 20kHz (±1dB with the frequency response calibration file loaded)
Sampling Rate 48kHz
Bit Depth 24 Bits
Number of Input Channels 1
Frequency Accuracy 0.01%
Frequency Weighting Flat, A, B, C, ITU-R 468
Time Weighting Linear, Exponential
(Equivalent Continuous Sound Level (Leq) fully complies with IEC61672)
Max. SPL (THD<1%, 1kHz) 133 dBSPL @ 0dB analog gain
Sound Level Measurement Range 35dB ~ 125dB (typical), adjustable through software gain slider. Recalibration is not required after the gain setting changes.
Sound Level Measurement Accuracy ± 0.3 dB at 94dB, 1kHz after calibration
Sound Level Calibration Calibrated using Type 1 Sound Level Calibrator
Octave Analysis 1/1, 1/3, 1/6, 1/12, 1/24, 1/48, 1/96
(Complies with IEC61260)
Other Functions THD, THD+N, SINAD, SNR, SMPTE IMD, DIN IMD, CCIF2 IMD, Frequency Response, etc. 
Much more functions are described in the software manual.
USB Audio USB Audio Class 1.0 (no driver installation required)
Connector Mini USB socket
Case Material Die cast aluminum
Weight 120 g
Dimensions Φ21.0 × 181.0 mm
Power Supply USB bus powered (5V)
System Requirements Windows XP/VISTA/7/8/8.1/10, 32 bit or 64 bit. Minimum Screen Resolution: 1024 × 600
Calibration Individually calibrated. Calibration files for on-axis and 90 degree included.



RTA-168C Frequency Response
Typical Frequency Response


3. Some Applications
1. Polarity Check for Speakers, Microphones and Amplifiers using Multi-Instrument




2. Magnitude Frequency Response Measurement using Octave Analysis with Periodic Pink Noise Excitation (no averaging is required unlike the case of pink noise)



3. Measurement of Reverberation and Its Related Acoustic Parameters using the Interrupted Noise Method (Note: Multi-Instrument Pro or above is required)

Reverberation Time RT60 Measurement using Interrupted Noise


4. Measurement of Reverberation and Speech Intelligibility Parameters using the Integrated Impulse Response Method (Note: Multi-Instrument Pro or above is required)

Reverberation Time RT60 and Speech Transmission Index STI Measurement using Integrated Impulse Response

Reverberation and Speech Intelligibility Measurement using Integrated Impulse Response



5. Discontinuity Measurement for Detection of Glitch, Digital Dropout, Speaker Rub and Buzz (Note: Multi-Instrument Pro or above is required)

Discontinuity Measurement for the Detection of Glitch, Digital Dropout, Speaker Rub and Buzz


6. Sound Quality Measurement Example - Loudness, Loudness Level, Sharpness of a white noise in a Free Field (Note: Multi-Instrument Pro or above is required)

Sound Quality Measurement - Loudness, Loudness Level, Sharpness of White Noise in a Free Field


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