是可以同时测试在Loud Speaker中产生的 Frequency Response、SPL、Impedance、Fo、Ze、THD、 Phase、Polarity、Rub&Buzz、C-MIC的信号分析装置。 比起现有根据听觉检查判别的杂音(Rub&Buzz)检查，高频信号分析能够进行更准确的检查和判别。 在这里使用的信号分析 algorithm 是革命性的、新方法，可以感知出微小的 Rub&Buzz。 并且因为可以管理在 Ear-Phone产品中内含的 C-microphone的频率特性和灵敏度，在Ear-Phone 产品的检查中提供了最佳的环境。 并且简单的设置和经过4阶段的管理领域设置，能够进行简单、稳定的判断。

1. 可以一次性对 Frequency Response(SPL)、Impedance、Fo、Ze, THD、Phase, Polarity , Rub&Buzz 同时进行测定，进而达到快速测定
。 2. High performance SNR>100dB.
3. Sampling rate up to 48kHz
4. Auto calibration : Microphone. Output voltage.
5. 可通过合格、不合格等级的4阶段设置进行管理。
6. Hardware System Self Test .
7. Computer-controlled operation Fast, hot plug USB interface.
8. 测试的 Data记录在 File中，SPL、Fo、Ze、THD(4point)、Rub&Buzz(4point) 的 Avg、Min、 Max、Cp、Cpk 值能够计算(SPC)
9. 通过因特网能够远程操纵。
10. 用Word 或者 Excel(Text Format)的简单文件输出。
11. MIC Pre-Amp, Conditioning Amp, Power Amp System control. Remote control.
12. 用Via standard LEMO 7-Pin Connector 构造，因为构成输入，原来的标准扩音器 (B&K)仍然可以使用。
13. 用2个构成的Speaker输入和输出端口，用一次性测试的Stereo产品，能够检查
。 因为构成另外的 C-MIC检查用输入、输出端口，内装Microphone的Ear-Phone产品的检查可以实现。

Option-01A : 与自动化设备连接时，所有检测项目的Pass. Fail，输出分离为4阶段Class的信号。

-Generator & Analyzer
Level flatness of the combined generator & analyzer
100 Hz ~ 10kHz
20 Hz ~ 20 kHz

-Sweep Generator
Number of channels
Sampling rate (fs) / Residual
Frequency range

Level setting resolution
Amplitude shape dynamic range
Level accuracy @ 1 kHz
Level flatness
100 Hz ~ 10 kHz
20 Hz ~ 20 kHz

Frequency resolution

Frequency accuracy
Power Amplifier Output Voltage range
Total Harmonic Distortion


Sweep Analyzer

Number of channels
Sampling rate (fs) / Level resolution
Bandwidth
Level range
Level accuracy @ 1 kHz
Level flatness
100 Hz ~ 10 kHz
20 Hz ~ 20 kHz

Residual distortion @ level +25 to –20 dBVp (THD+N)
Residual noise
Phase accuracy (interchannel)
Internal frequency accuracy
Selectable input impedance per channel
Input impedance accuracy
Input impedance coupling
Phantom power voltage
Phantom voltage accuracy
Phantom power inward resistance
15V

Measurements







Option & Accessories

Phanton power voltage

Polarization Voltage

SP-72

SG-5001B





SOUND SOURCE 5000A

Voltage Probe P2011B I97

General

Standard software




Interface Bus


Main power requirements

Fuse

Operating temperature

Dimensions

Weight

<± 0.1 dB
<± 0.2 dB


2 channels with individual levels
48 kHz / 24 bit DAC
20 Hz ~ 20 kHz

0.1 dB
94 dB
<± 0.1 dB

<± 0.1dB
<± 0.2 dB

Log : 1/1,1/3,1/6,1/12,1/24,1/48 Octave steps
Lin : 1 to 2000 steps
<± 50 ppm
10mVRMS to 10.0VRMS , 5W [Max]
0.1V (8Ω) at 1 kHz -60 dB
1V to 5V (8Ω) at 1 kHz -65 dB



2 independent channels with individual input range
48 kHz / 24 bit
20 Hz ~ 20 kHz
-34 to +60 dBVp
<± 0.1 dB

<± 0.1 dB
<± 0.2 dB

<-85 dB
<-120 dB
± 1 deg @ 200 Hz ~ 4 kHz
± 50 ppm
1MΩ
1% of resistor value
AC Coupled
15 VDC
± 0.5VDC
2.2 KΩ

[1] SPL (Sound Pressure Level) Frequency Response
[2] Total Harmonic Distortion / 2nd & 3rd Harmonisc Distortion
[3] Extraneous Noise (Rub&Buzz) Frequency Response
[4] Impedance Frequency Response
[5] Polarity (Phase Frequency Response)
[6] Impedance
[7] Fo, Ze (Resonance Frequency)
[8] L/R Comparison measurement



Connector type BNC 24 VDC, 48 VDC

Connector type 7 pin Lemo 200 VDC

Lemo ICP Adaptor

Remote Control
15P D-Type connector I/O signal - Start, Pass, Fail, Fail
[Class1, Class2, Class3, Class4]
SPL Analyzer ON. Rub & Buzz Analyzer ON .
Remote control I/O ※ Terminal Box [Option 01A]

Microphone Test Mouth Simulator

Mic-Preamp (DC1~3V)



Audio Analyzer Production software
(PC based Windows® XP, Vista, win7 )
Pentium®4, 1.5GHz processor minimum or equivalent.
(Celeron processors are not recommended)

Personal computer connected to the instrument
through the Audio Analyzer Interface Bus. (USB2.0)

AC 220-230V~ 50/60Hz 95VA

5 x 20 T LBC 1A/250V Standard : EN10480

+ 5 to +45℃ ( +40 to +110 F ), R.H.<90% non condensing

485(W) * 95(H) * 256(D) mm (without Dimensions of Power Amp)

4.8 kg (without Weight of Power Amp

It is a system that can automatically makes corrections while measuring the ANC sensitivity of headphones. You may select either pink Noise or Sine wave as a signal for measurement. In case that the pink Noise is used, it shall be automatically locked in order to keep the flat frequency characteristics and its level remain with the artificial ears on. Therefore, an identical noise environment can be set under any measurement conditions. It allows the signal analysis resolution in 1/3, 1/6, 1/12 octaves whereby the octave resolution can be selected on a per-channel basis..

Depending on the features of the headphone, you can continuously run it by selecting auto ANC correction, auto monitor mode correction, final test after correction and the like.

Since such measured characteristics of the frequency as absolute values and relative values are all displayed in graphs, the noise amount that has been removed can be easily analyzed. The control menu tailored to the designs of the ANC chip manufacturer makes the chip programming simple and easy. (Please inquire at the corporate Headquarters as the control menu may be additionally set for new chips or manufacturers.) [It can be supported by adding features of the trim box even if interface methods differ among chip manufacturers.]

The simulation feature that automatically analyzes the maximum position sensitivity of noise cancelling provides more convenient and accurate measurement means even at the development stages.