The Truth Machine and Lie Detector

Who is Telling The Truth and Who is Lying???            

For many years scientists have attempted to develop a successful lie
detector. In the seventies American researchers developed the
Psychological Stress Evaluator (PSE) and the Voice Stress Analyser
(VSA). These two principles have now been synthesized in the Truth
Machine.            

Micro tremors in the voice which are often not detected by the human
ear1 produce frequency modulations which are measured. The amplitude of the

 upper and lower sidebands from voice modulations is alsomonitored. The results are analysed

 and shown visually by the columns
of LED lights which range from green (low tension) to red (high tension).

The Truth Machine accurately measures changing stress levels in the
voice but as each individual's voice reacts differently it is not infallible;
the lighting of red LED's, high stress, is indicative of lying however!
Not only is the Truth Machine great fun when used in general
conversation but can also be tested against the TV and even connected
to the telephone.            

It measures 16cm x 13cm. A 9v battery is required.             

The Truth machine

Click image to enlarge (56K)

Telephone voice changers

Change your voice on the telephone with one of these telephone voice changers!

Just hold the voice changer over the telephone handset adjust the buttons to obtain the desired voice. Vice can be changed with multi step buttons up and down and also has a robot voice facility.

Telephone voice changer picture 1

Telephone voice changer picture 2

Telephone voice changer picture 3

Telephone voice changers

Change your voice on the telephone with one of these telephone voice changers!

Just hold the voice changer over the telephone handset adjust the buttons to obtain the desired voice. Vice can be changed with multi step buttons up and down and also has a robot voice facility.

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