Signal

1.Record
This function control a 16bit sound card to record a signal. The sample parmeters is set in a dialog as below.

Cnannel Number: 1=mono, 2=stero.
Sample Frequency: 1000Hz <  Fs < 44100Hz
Sample Length: 1024 < Len < 64535 (points)
Scale Factor: Snew =(Signal sample peak value*Sold)/Signal real peak value.
(This parameter is used to translate digital sample value to a real value. You can get this by input a standard signal, then calculate it by formula above. You can ignore this parameter.)
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2.Play
This function play signal from sound card. The play parmeters is set in a dialog as below.

Mono          :  play sound in mono mode.
Stero           :  play sound in stero mode.
Ch1             :  use signal of CH1 as play source.
Ch2             :  use signal of CH2 as play source.
Ch1&CH2   :  use signal of CH1&CH2 as play source.
Single           :  play single time.
Circle           :  play circularly.
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3.Monitoring
This function acquire signal from sound card circuarly. It works like below.

It is used to see whether input signal is in a adequate amplitude. A  ideal amplitude of input signal should > 0.4(Normalized, Full scale=1) . This function is designed to adjust signal, do not use it to acquire signal, use "Record" to do data acquistion.
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4.Open
This function read signal from a windows WAV sound file, or from a text data file defined below.
1.Momo Signal data file
SAT_TXT_FILE         // SAT data file mark
1                                 //
4096                           //   Sample length
11250                         //   Sample frequency.
0.3                              //  data1
0.5                             //  data2
........
........
2.Stero Signal data file
SAT_TXT_FILE         // SAT data file mark
2                                 //
4096                           //   Sample length
11250                         //   Sample frequency.
0.3  1.2                      //  CH1 data1, CH2 data1
0.5   0.8                     //  CH1 data2, CH2 data2
.......
........
Write yourself signal data in windows WAV format or text file format, the program can analyze signal data acquired from other source.

5.Save
This function save signal to a windows WAV sound file, or a text data file.

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CH1          : Save signal of CH1 to a mono data file.
CH2          : Save signal of CH2 to a mono data file.
CH1&CH2: Save signal of CH1 and CH2 to a stero data file.
Start Point  : 0< Sp < Ep
End  Point  : Sp < Ep <  Sample Length
(You can use Sp and Ep to select a signal chip, or just ingore it.)
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6.Generator
This function supply a stimulate signal source of white noise,sine, and so on. You can use it to generate different standard signals.
Sine Wave  
White Noise
Square Wave 
Trigon Wave
Saw Wave 
Sweep Sine Wave
Impulse Signal 
Rectangle Impulse
Trigon Impulse 
DC Signal
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