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Acoustic Audio Analyzer
TrueRTA electro acoustic measurement system
TrueRTA32 is the basic audio function of PC as a test and evaluation of audio system based on software audio analyzer. TureRTA tools including sine, white noise and pink noise generator, digital level table, mild distortion signal generator, amplitude meter, double trace shown wave and high resolution real-time audio spectrum analyzer. TrueRTA will make your PC a powerful audio frequency spectrum analyzer, and the accuracy of the 1/3oct spectrum than the CLIO spectrum analysis is much higher
Function IntroductionTechnical ParametersConfiguration Checklist

TrueRTA32 is the basic audio function of PC as a test and evaluation of audio system based on software audio analyzer. TureRTA tools including sine, white noise and pink noise generator, digital level table, mild distortion signal generator, amplitude meter, double trace shown wave and high resolution real-time audio spectrum analyzer. TrueRTA will make your PC a powerful audio frequency spectrum analyzer, and the accuracy of the 1/3oct spectrum than the CLIO spectrum analysis is much higher.

Physical format is a PC card slot

ISA bus speed 4mhz-32mhz

The PC card size 8.2 x 4 inches

Connector interface RCA output, RCA input, 3.5mm microphone input

Power supply requirements

DC voltage +12, V +5, V 12V

DC current 100mA, 100mA, one hundred and thirty Ma

Microphone power + 10.0vdc @ 50mA (4)

Total power (no microphone) 3 watts

Noise generator

Noise spectrum, white, pink

19 digit sequence MLS

Cycle time 2 seconds

Pink noise filter + + 0.5dB, 10hz-40khz

Maximum output + + 2.6dbm 8.6dbm pink, white

Output impedance 500 ohm

12 bit DAC output attenuator

Fang Bo generator

Output frequency 31 @ 20Hz-20kHz, ISO Center

Frequency accuracy 0.5%

Maximum output + 9.6dbm (RMS)

Output impedance 500 ohm

12 bit DAC output attenuator

Input source

Type of microphone, line

Maximum input level + 20dBm

100K ohm input impedance

Full band frequency response 3dB @ 0.6hz-150khz

Full band noise floor 91dbm (short-circuit input)

1 / 20Hz 3oct with noise floor 120dbm (short-circuit input)

1 / 3oct noise floor is -100dBm (short circuit input)

Automatic ranging gain

Gain module 4

0 to 60dB gain range

Step 15dB steps

ANSI weighted filter

Filter type, C, B

Design standard s1.42-1986 ANSI

64-1986 ASA

537-1976 IEC

51575-601 ASA 1972

Band filter

Fractional band 1 / 3 frequency range

Dynamic range is greater than 100dB

Linear average of detection method

Average time: 50 milliseconds to 50 seconds

The topology inversion of the filter (BPF)

Filter order number / class of 2 pole, first order bandpass I class

Design standard s1.11-1986 ASA, 65-1986 ANSI

Configuration content
Number
Microphone
1
Microphone connector
1
tascam US 122 MK11
1
trueRta LEVEL4
1

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