Real time FFT Noise Octave Distortion Audio Analyzer MLS Pink Noise Generator

Description

Multi-Instrument (Standard) with a CD, a hard key (USB dongle) and a softkey
Turn a PC into multiple virtual instruments!
1. Introduction of Multi-Instrument (Standard)
Multi-Instrument (Standard) is a powerful PC based multi-function virtual instrument software. It supports a variety of hardware ranging from sound cards which are available in almost all computers to proprietary ADC and DAC hardware such as VT DSO, VT IEPE, VT CAMP, VT RTA, NI DAQmx cards and so on. It consists of a dual trace oscilloscope, a real time spectrum analyzer, a signal generator and a multimeter, and can run them simultaneously.
For a sound card based system, software triggering is supported.  It features a specially designed data acquisition approach, which is able to monitor the input signal continuously without missing any trigger event before a frame of data is collected. It has a very fast screen refresh rate (typically greater than 50 frames per second). It supports sophisticated triggering method including pre-trigger and post-trigger. Both level trigger and differential trigger are supported.
For a non sound card based system, the triggering capability depends on the hardware used. Hardware triggering is supported if the hardware used supports it.  Software triggering is supported if the hardware used supports data streaming.
The software has a multilingual user interface, including English, French, German, Italian, Spanish, Portuguese, Russian, Simplified Chinese, Traditional Chinese, Japanese, and Korean.
It has been widely used in education, scientific research, audio engineering, electronic engineering, medical diagnosis, vibration analysis, etc.
The software can be downloaded from virtins.com for a 21-day fully functional FREE trial using your sound card as the ADC and DAC device.
2. Functions of Multi-Instrument (Standard)
A comprehensive range of functions are provided in Multi-Instrument (Standard), including:
(1) Oscilloscope
Oscilloscope Mode: dual-trace waveform, waveform addition, subtraction and multiplication, Lissajous Pattern, transient signal recording, voltmeter. AM, FM, PM Demodulation. Linear and exponential average...
Recording Mode: Record data to the hard disk continuously until the recording process is stopped manually or 2 gigabytes of data has been recorded, whichever  is earlier. During the recording process, acquired data will still be analyzed and displayed to keep the screen updated in real time.
Roll Mode: Data displayed in the Oscilloscope will shift left gradually while the newly acquired data are added from the right.
(2) Spectrum Analyzer
RMS amplitude spectrum, relative amplitude spectrum, octave analysis (1/1,1/3,1/6,1/12,1/24, 1/48, 1/96), frequency compensation, frequency weighting (A,B,C,ITU-R 468), moving average smoothing, peak hold, linear average, exponential average, measurement of THD, THD+N, SNR, SINAD, Noise Level, IMD, Bandwidth, Crosstalk, Harmonics, Peaks, and Energy in user defined frequency bands, phase spectrum, auto correlation function, cross correlation function...
(3) Signal Generator
Function generation, multitone generation, arbitrary waveform generation, burst tone generation, MLS generation, DTMF generation, musical scale generation, white noise and pink noise generation, and frequency/amplitude sweep signal generation. Fade In / Fade Out of the output signal.  AM, FM, PM modulation...
(4) Multimeter
RMS, dBV, dBu, dBSPL, dB(A), dB(B), dB(C), Frequency Counter, RPM, Counter, Duty Cycle, Frequency/Voltage Conversion, Cycle RMS, Cycle Mean.  The latter seven modes involves a pulse counting process, with the counter trigger level, hysteresis, frequency dividing ratio adjustable.
3. Function Allocation in Multi-Instrument Series
The full package of Multi-Instrument has six levels and five add-on modules/functions.
The six levels are: Sound Card Oscilloscope (listed price US.95), Sound Card Spectrum Analyzer (listed price US.95), Sound Card Signal Generator (listed price US.95), Multi-Instrument Lite (listed price US.95), Multi-Instrument Standard (listed price US.95), Multi-Instrument Pro (listed price US9.95).
The five add-on modules/functions are: Spectrum 3D Plot (listed price US.95), Data Logger (listed price US.95), LCR Meter (listed price US.95), Device Test Plan (listed price US.95), Vibrometer (listed price US.95).
Note: the item here is for one license of Multi-Instrument (Standard) without any add-on modules/functions (listed price US.95) , a CD (listed price US.95), and a USB Hardkey (listed price US.95).
The following table shows the function allocation matrix for the six levels of Multi-Instrument . (the functions of the five add-on modules/functions are not listed here)
Basic Modules
Legend: ✔- Function available
Functions\Levels
Sound Card Oscilloscope
Sound Card Spectrum Analyzer
Sound Card Signal Generator
Multi-Instrument Lite
Multi-Instrument Standard
Multi-Instrument Pro
US.95
US.95
US.95
US.95
US.95
US9.95
General Functions
ADC/DAC Hardware
Sound Card MME
✔
✔
✔
✔
✔
✔
Sound Card ASIO
✔
Other Hardware
✔
✔
✔
vtDAQ, vtDAO software development
License automatically activated with the presence of the corresponding hardware, e.g. a USB hardkey or a VT DSO.
File Operation
Load WAV file
✔
✔
✔
✔
✔
✔
Load TXT file
✔
✔
Load WAV file frame by frame (for long WAV file)
✔
✔
Combine WAV file
✔
✔
✔
✔
✔
✔
Extract data and save them into a new WAV file
✔
✔
✔
✔
✔
✔
Save/load panel setting
✔
✔
✔
✔
✔
✔
Data Export
Copy Text to Clipboard
✔
✔
✔
✔
✔
✔
Copy BMP to Clipboard
✔
✔
✔
✔
✔
✔
Print Preview
✔
✔
✔
✔
✔
✔
Print
✔
✔
✔
✔
✔
✔
Export as TXT file
✔
✔
✔
✔
✔
✔
Export as BMP file
✔
✔
✔
✔
✔
✔
Trigger Settings
Trigger Mode
✔
✔
✔
✔
✔
Trigger Source
✔
✔
✔
✔
✔
Trigger Edge
✔
✔
✔
✔
✔
Trigger Level
✔
✔
✔
✔
✔
Trigger Delay
✔
✔
✔
✔
✔
High Frequency Rejection
✔
✔
✔
Noise Rejection
✔
✔
✔
Sampling Settings
Sampling Rate
✔
✔
✔
✔
✔
✔
Sampling Channels
✔
✔
✔
✔
✔
✔
Sampling Bit Resolution
✔
✔
✔
✔
✔
✔
Record Length
✔
✔
✔
✔
✔
Calibration
Input
✔
✔
✔
✔
✔
Output
✔
✔
✔
✔
Probe
✔
✔
✔
✔
✔
Sound Pressure Level
✔
✔
✔
✔
✔
F/V Conversion
✔
✔
Latency for Sync. Output/Input
✔
Sensor Sensitivity
✔
✔
✔
✔
✔
Load Factor for Power Calculation
✔
✔
✔
✔
✔
Graph Operation
Zoom
✔
✔
✔
✔
✔
✔
Scroll
✔
✔
✔
✔
✔
✔
Cursor Reader
✔
✔
✔
✔
✔
✔
Marker
✔
✔
✔
✔
✔
✔
Chart Type
✔
✔
✔
✔
✔
✔
Line Width
✔
✔
✔
✔
✔
✔
Color
✔
✔
✔
✔
✔
✔
Fast/Slow Display Mode
✔
✔
✔
✔
✔
✔
Refresh Delay
✔
✔
✔
✔
✔
✔
Font Size
✔
✔
✔
✔
✔
✔
Roll Mode
✔
✔
Reference Curve
✔
✔
Others
Gain Adjustment
✔
✔
✔
✔
✔
✔
Input Peak Indicator
✔
✔
✔
✔
✔
✔
Sound Card Selection
✔
✔
✔
✔
✔
✔
Sampling Parameter Auto Setting
✔
✔
✔
✔
✔
✔
Multilingual GUIs
✔
✔
✔
✔
✔
✔
Show/Hide Toolbar
✔
✔
✔
✔
✔
✔
Lock/Unlock Panel Setting
✔
✔
✔
✔
✔
✔
Hot Panel Setting Toolbar
✔
✔
✔
✔
✔
✔
ActiveX Automation Server
✔
✔
✔
✔
✔
✔
Oscilloscope
Type
Individual Waveform
✔
✔
✔
(offline)
✔
✔
✔
Waveform Addition
✔
✔
✔
(offline)
✔
✔
✔
Waveform Subtraction
✔
✔
✔
(offline)
✔
✔
✔
Waveform Multiplication
✔
✔
✔
(offline)
✔
✔
✔
Lissajous Pattern
✔
✔
✔
(offline)
✔
✔
✔
Digital Filtering
FFT Low Pass
✔
✔
FFT High Pass
✔
✔
FFT Band Pass
✔
✔
FFT Band Stop
✔
✔
FFT Frequency Response
✔
✔
FIR Low Pass
✔
✔
FIR High Pass
✔
✔
FIR Band Pass
✔
✔
FIR Band Stop
✔
✔
FIR Frequency Response
✔
✔
IIR Coefficients
✔
✔
Others
Max, Min, Mean, RMS
✔
✔
✔
(offline)
✔
✔
✔
Record Mode
✔
✔
Persistence Display Mode
✔
✔
✔
✔
✔
Equivalent Time Sampling Mode
✔
✔
✔
✔
✔
Analog & Digital Signal Mixed Display
✔
✔
✔
Spectrum Analyzer
Type
Amplitude Spectrum
✔
✔
✔
✔
Phase Spectrum
✔
✔
✔
✔
Auto-Correlation
✔
✔
✔
✔
Cross-Correlation
✔
✔
✔
✔
Coherence
✔
Gain and Phase
✔
Impulse Response
✔
Intra-Frame Processing
Frequency Compensation
✔
✔
✔
✔
Frequency Weighting
✔
✔
✔
✔
Remove DC
✔
✔
✔
✔
Smoothing via Moving Average
✔
✔
✔
✔
Inter-Frame Processing
Peak Hold
✔
✔
✔
✔
Linear Averaging
✔
✔
✔
✔
Exponential Average
✔
✔
✔
✔
Parameter Measurement
THD, THD+N, SNR, SINAD, Noise Level, ENOB
✔
✔
✔
✔
IMD
✔
✔
✔
✔
Bandwidth
✔
✔
✔
✔
Crosstalk
✔
✔
✔
✔
Harmonics & Phase
✔
✔
✔
✔
Energy in User Defined Frequency Bands
✔
✔
✔
✔
Peaks, SFDR
✔
✔
✔
✔
FFT
FFT Size 128~32768
✔
✔
✔
✔
FFT Size 65536~4194034
✔
Intra-Frame Average
✔
✔
✔
✔
Window Function
✔
✔
✔
✔
Window Overlap
✔
✔
✔
✔
Other
Peak Frequency Detection
✔
✔
✔
✔
Cross Correlation Peak Detection
✔
✔
✔
✔
Octave Analysis (1/1, 1/3, 1/6, 1/12, 1/24, 1/48, 1/96)
✔
✔
✔
✔
Linear/Log Scale for X and Y
✔
✔
✔
✔
Signal Generator
Waveform
Sine
✔
✔
✔
✔
Rectangle
✔
✔
✔
✔
Triangle
✔
✔
✔
✔
Saw Tooth
✔
✔
✔
✔
White Noise
✔
✔
✔
✔
Pink Noise
✔
✔
✔
✔
MultiTones
✔
✔
✔
✔
Arbitrary Waveform
✔
✔
✔
✔
MLS
✔
✔
✔
✔
DTMF
✔
✔
✔
✔
Musical Scale
✔
✔
✔
✔
Wave File
✔
✔
Play Waveform in Oscilloscope
✔
✔
✔
✔
✔
✔
Cyclic Play Waveform in Oscilloscope
✔
✔
✔
✔
✔
✔
Burst (Mask)
Normal
✔
✔
✔
✔
Phase Locked
✔
✔
✔
✔
Fade
Fade In
✔
✔
✔
✔
Fade Out
✔
✔
✔
✔
Sweep
Frequency Sweep  (Linear/Log)
✔
✔
✔
✔
Amplitude Sweep  (Linear/Log)
✔
✔
✔
✔
Others
Software Loopback  (all channels)
✔
✔
✔
✔
Software Loopback  (1 channels)
✔
✔
✔
Sync. with Oscilloscope
✔
Save as WAV file
✔
✔
✔
✔
Save as TXT file
✔
✔
✔
✔
DDS
✔
✔
✔
DC Offset
✔
✔
✔
Multimeter
Type
RMS
✔
✔
dBV
✔
✔
dBu
✔
✔
dBSPL
✔
✔
dBSPL(A)
✔
✔
dBSPL(B)
✔
✔
dBSPL(C)
✔
✔
Frequency Counter
✔
✔
✔
RPM
✔
✔
Counter
✔
✔
Duty Cycle
✔
✔
Frequency/Voltage
✔
✔
Cycle RMS
✔
✔
Cycle Mean
✔
✔
Settings
Counter Trigger Hysteresis
✔
✔
✔
Counter Trigger Level
✔
✔
✔
Frequency Divider
✔
✔
✔
DDP Viewer
Function
DDP & UDDP Display
✔
HH, H, L, LL Alarm
✔
Set Display Precision
✔
Define UDDP
✔
4. Specifications
For a sound card based system:
Scan Time:                    100µs~500s*
Sampling Rate
*
:             Max. 768 kHz
Bandwidth
*
:                  10Hz~200kHz
Bit Depth
*
:                    8, 16,24
Voltage Range
*
:            Max -1V~1V
Input Channel:               Ch.A, Ch. B
Output Channel:            Ch.A, Ch. B
Trigger Mode:               Auto, Normal, Single, Slow
Trigger Edge:                 Rising, Failing, Differential
Trigger Delay:                Pre-Trigger, Post-Trigger
Trigger Source:              Ch. A, Ch. B
FFT Size:                      128~4194304
Window Functions:        55 types
Window Overlap:          0%~99%
Octave Analysis:            1/1, 1/3, 1/6, 1/12, 1/24, 1/48, 1/96
Frequency Weighting:    A, B, C, ITU-R 468
*
Sound Card dependent
* Computer Memory dependent
For a non sound card based system:
Please refer to the respective hardware manual.
5. System Requirement
PC or Laptop with
Microsoft Windows XP/Vista/7/8/10, 32 bit or 64 bit, screen resolution is recommended to be greater than 1024 × 600 pixels.
For a sound card based system, 8, 16 or 24 bit Windows compatible sound card is required.
The software also supports NI DAQmx cards such as NI USB 6009.
6. What are contained in the package to be shipped
It contains:
1. One CD for Multi-Instrument software.
Note: the software is strictly copy-protected, once it is installed, it runs under 21-day fully functional (i.e. Pro version + the five add-on modules/functions) FREE trial mode. You need to use either a hardkey or a softkey (activation code) to activate the software to Multi-Instrument (Standard).
2. One USB Hardkey (dongle). Note: The hardkey is initialized to Multi-Instrument (standard). It is remotely upgradable and does not need a driver to run under Windows XP or above.
Please note that no ADC/DAC hardware contained in this item!
7. What else will be given?
In addition, one softkey (activation code) will be given within 24 hours after you register your software at our website.
Note that the softkey can only unlock the software on the computer which you register with us.  It is NOT a generic activation code.
Internet connection is NOT required to run the software.
8. What does "one hardkey and one softkey" imply?
It implies that you can run the software on the registered computer with the softkey,  and on any computer with the hardkey. In other words, you can run the software on two different computers simultaneously.
9. Software Upgrade policy
Software upgrade in the same level is always FREE. When a new version is available, you can just uninstall your current version, download and re-install the new version. The software will be activated automatically.
Software upgrade to a higher level can be purchased from virtins.com. Both the softkey and hardkey given are remotely upgradable.
10. Shipping
We ship worldwide.
The item will be shipped via express mail service within 24 hours after the payment is received. It will take normally about 5~8 days to deliver to you (e.g. USA, UK, Australia, Canada, Hong Kong, Taiwan, Japan, Korea...).  In some specially cases, or special places (e.g. Italy), it may take a little longer time. The shipping and handling charge is fixed at US for all places. Tracking information online will be provided 2 days after shipping.
You MUST provide us your telephone number as required by the courier company to facilitate the delivery!
11. Refund Policy
Returns for malfunctional items are accepted for a full refund or exchange within 7 days after you receive the item.  For full refund, item must be in the same condition as received with all accessories.  Returned items must be delivered with postage prepaid by the customer.  You must contact us first before you return it.  No refund will be given once the softkey (activation code) is issued to you. We strongly recommend that you try it out from virtins.com first before you buy it. Please contact us if you are in doubt before you place your order.