Real Time Acoustic Analyzer VT RTA-168D with Ultra Low Noise



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VT RTA-168D

PC based Ultra-Low-Noise USB Real Time Acoustic Analyzer, Sound Level Meter, Distortion Analyzer, Polarity Tester ... Manual

VT RTA-168D US$549.95 Free Express Shipping
VT RTA-168D, 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 Pro 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)

     Unique Calibration Files Download:
                   Serial Number (7 digits xxxxxxx)


2. Specifications

Transducer Type	1/2" low-noise pre-polarized condenser on 60 UNS thread
Polar Pattern	Omni-directional
Frequency Range	10Hz ~ 20kHz (±1dB with the frequency response calibration file loaded) Useful Range: 1Hz ~ 90 kHz
Sampling Rate	44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
Bit Depth	32 Bit (120 dB SNR ADC)
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)	125 dBSPL @ 0dB analog gain
Sound Level Measurement Range	25dB ~ 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 2.0 (driver installation required)
Connector	USB Type C socket
Case Material	Aluminum
Weight	150 g
Dimensions	Φ21.0 × 185.0 mm
Power Supply	USB bus powered (5V)
System Requirements	Windows XP/VISTA/7/8/8.1/10/11, 32 bit or 64 bit. Minimum Screen Resolution: 1024 × 600
Calibration	Individually calibrated. Calibration files for on-axis and 90 degree included.

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
dBSPL, Loudness, Loudness Level, Sharpness, Articulation Index and Open Articulation Index 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

(7) Detection of Ultrasound Burst (about 40 kHz ) Emitted by Car Parking Sensor

Measurement of Ultrasonic Pulse emitted by Parking Sensors