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FREEWARE: Radical And Extreme Algorithmz
Voice Stress Analyzer Tool FAQ
"How can you tell when a politician is lying?
 His lips move!" --  Max Headroom
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What is it?

Prevaricator v1.0 is a combination Voice Stress Analyzer and WAV file media player which performs realtime spectral frequency analysis on the playback of audio data. It is the software approximation of the "Lie Detector" novelty items sold in specialty stores. It incorporates standard media player controls PLAY/PAUSE/STOP/RECORD. Playback displays spectral frequency in realtime graph.

Requirements: WIN95/98/NT

Oddly enough, observed reports are that it works with with non-English languages as well:

Arabic
Spanish
Klingon (recorded from Star Trek Next Generation -- Great acting!)
Others? Please let me know!
How do I install it?
The executable, once unzipped, may be stored and run from any directory. It is recommended that it be stored in a directory such as:
      C:/program files/prevaricator
How do I use it? What does the graph mean?
As each word is played back, the realtime graph is updated to reflect the stress patterns present in the word just spoken. A variance means that there is a shift in the lower audio frequency of the speakers voice. This is typically associated with strong emotion. You should consider what is being said in the context in which it is being said in order to determine the truth. It could be anger, fear, pride, or guilt. The real-analyzer is YOUR MIND, and you needn't have all the facts to draw a picture.
Problems?
 
Symptom:

The Prevaricator repeats audio in continuous loop.
Typically experienced on Win'98, AMD processor systems.

Answer: 

Incompatibility is resolved in current download.

 
Symptom:

The Prevaricator application window is malformed (ie, stretches from top-to-bottom of monitor)

Answer: 

Older WIN'95 incompatibility is resolved in current download.

 
Symptom:

Prevaricator runs out of memory in 7 1/2 minutes of recording (roughly 10-14meg).

Answer:

 Recording is done in-memory and subject to limits of your system. The Windows O/S 'realloc' system call is very inefficient. Playback is not affected, I've successfully analyzed 3hours worth of data read in via file on a 190mb system.

 
Symptom:

Prevaricator pauses after file read.

Answer:

This is normal. Fourier Analysis (ie, compute-work) occurs immediately after reading a file. It  requires 1 second for every 10 seconds of audio data. The previously mentioned 3 hour audio data took 15 minutes to analyze. For typical audio data-files the pauses is minor.

 
Symptom:

Prevaricator displays flat-line or no data line after recording, or file-playback.

Answer:

Volume is too low. Try boosting it. Remember, the program is deriving sub-sonic (6-16hz) tones from what is otherwise the human audible spectrum (20-20000hz).

 
Symptom:

Prevaricator distorts 8-bit audio while up-converting to 16-bit audio.

Answer:

Corrected in current download.
How do I install it into my browser?
As a Browser Application: (Windows, Netscape or Internet Explorer uses this program to play all .WAV files)
If you are not comfortable installing a helper-app into your browser, then just stick with double-clicking it
1. Check the current player application assigned to .WAV files
A. Select Windows START and scroll to SETTINGS-->FOLDER OPTIONS
B. From the FOLDER OPTIONS Window, select the FILE_TYPES tab
C. Scroll down to registered type WAV
D. Select WAV and push the EDIT Button
E. In the Actions window select OPEN and push EDIT
F. Write down the application path/name specified and any parameters
    (Typically this is sndrec32 or mplayer)
G. Select CANCEL to close each of the windows opened so far.
2. Update your browser:
Netscape:4.x
A. Start NETSCAPE
B. Select the menu options EDIT-->PREFERENCES
C. Expand the tree-list: Navigator-->Applications
D. Scroll down to and select WAV
E. If the EDIT button is greyed it means a DLL file is present
    a. Press the NEW button
    b. Provide the following information as requested:
      Description of type: WAV
      File Extention:   WAV
      MIME Type:    audio
    c. Use the BROWSE Button to select PREVARICATOR.EXE where you stored it
    d. add the following to the end of the application to use:
      %1
        So the line looks something like
            c:/program files/prevaricator/prevaricator.exe %1
        The %1 represents the cached filename passed to the program.
    e. Select OK to close each of the windows opened so far
F. If the EDIT button was NOT greyed out
    a. Push the EDIT button
    b. Use the BROWSE Button to select PREVARICATOR.EXE where you stored it
    c. Select OK to close each of the windows opened so far
       
Internet Explorer:4.x
A. Select Windows START and scroll to SETTINGS-->FOLDER OPTIONS
B. From the FOLDER OPTIONS Window, select the FILE_TYPES tab
C. Scroll down to registered type WAV
D. Select WAV and push the EDIT Button
E. In the Actions window select OPEN and push EDIT
F. Use the BROWSE Button to select PREVARICATOR.EXE where you stored it
G. Select OK to close each of the windows opened so far.


To deassign this program as a Browser Application

Netscape:4.x
A. Start NETSCAPE
B. Select the menu options EDIT-->PREFERENCES
C. Expand the tree-list: Navigator-->Applications
D. Scroll down to and select WAV
F. If you replaced a previous helper-app
a. Push the EDIT button
b. Re-type the line from step (1.F) Above
    You did copy it didn't you?
    if you didn't use BROWSE to select sndrec32 or mplayer from the /windows directory
   and don't forget to add %1 to the end!
c. Select OK to close each of the windows opened so far
G. If you had created a NEW entry for this helper-app
    (Meaning that DLL helper-apps already exist)
a. Press remove to remove the entry that you made.
    Prior DLL drivers should still be present.
b. Select OK to close each of the windows opened so far
Internet Explorer:4.x
A. Select Windows START and scroll to SETTINGS-->FOLDER OPTIONS
B. From the FOLDER OPTIONS Window, select the FILE_TYPES tab
C. Scroll down to registered type WAV
D. Select WAV and push the EDIT Button
E. In the Actions window select OPEN and push EDIT
F. Re-type the line from step (1.F) Above
    You did copy it didn't you?
    if you didn't use BROWSE to select sndrec32 or mplayer from the /windows directory
G. Select OK to close each of the windows opened so far.