Wednesday, July 7, 2010

Spanish Verbs Ultimate Released

With Spanish Verbs Ultimate, learn 1001+ of the most common Spanish verbs w/english translations.

  •  Fully Conjugated Verbs
  • Search Verbs
  • Flashcard Mode
  • Speech Enabled w/Text-to-Speech (Android 1.6+ only)
  • Save to Favorites
  • Random Mode
  • Swipe for next Verb
  • Color coded verb forms

Perfect for Spanish learners and students of all levels. Optimized for speed and efficiency.

Advanced Lie Detector 2.1.7 Released

2.1.7 Hopefully fixes the long-standing LG Ally issues, as well as the recently introduced force-close problem with the Droid Incredible and Samsung Moment.  I've also added the stress quantification graph that I've been working on.  Please stay tuned for BIG changes in the next major release.  I am implementing methods of significantly boosting the accuracy rates.

Friday, June 25, 2010

LG Ally users wanted

Any LG Ally users out there?  Please write me.  I've been getting reports that Adv. Lie Detector does not work on LG Ally.  I could use some testers to help debug the problem.

Sunday, June 20, 2010

Adv. Lie Detector 2.1.2 released!

Alright, you guys asked for it, and I have added it.
  • Added a "DONE" button to the Microphone dialog to bypass the automatic silence detection.
  • Fixed a few minor FC's.
Hope you guys enjoy!  Please email me if you have any issues.

Thursday, June 17, 2010

Adv. Lie Detector v2.1.1 released

A minor point release that cleans up a few bugs:
  • More microphone adjustments for the EVO
  • Double available recording time.
  • New preference "Silence Threshold"... users having trouble with the microphone, please try setting the Silence Threshold to "HIGH".
For those of you asking for a Stop Recording button, there is no need. It should stop recording after you are done talking.  If it does not, try setting the silence threshold to "HIGH", or trying again in a quiet environment.

    Wednesday, June 16, 2010

    TEO-CB-Auto-Env part 1

    What does TEO-CB-Auto-Env stand for?

    Well, its short for Teager Energy Operator Critical Band Autocorrelation Envelope.

    That is the algorithm that Advanced Lie Detector uses for analysis of speech.  (Well, it is modified somewhat to work better with continuous speech). The graphic to the left is from a NATO research publication showing the tested accuracy of various methods of Voice stress detection and classification.

    As shown in the graph, the TEO-CB-Auto-Env algorithm scores the highest with an accuracy rate of 94.2% with a 3.97 standard deviation in stress classification results.

    Does this mean that with Advanced Lie Detector, I can detect lies with a 94.2% accuracy?  No.

    First of all, there is a difference between Stress and a Lie.  One can be stressed and telling the truth, or one can lie and not be stressed.  Usually, they go hand in hand, and that is the premise behind the Polygraph.  In order to increase the correlation of stress to lies, you should never expect Advanced Lie Detector to work on yourself.  When you tell a lie, you are not stressed, because there are no consequences of lying to yourself.  Ideally, Advanced Lie Detector should be used on someone else.  With the more intimate and personal questions that tend to produce a higher stress when one is being deceitful.

    Ok, so now that you understand the difference between Stress and a Lie.  Does that mean Advanced Lie Detector can detect Stressed Speech 94.2% of the time?  Maybe.

    The answer to that question is much more difficult.  If you read through the NATO research, one quickly realizes the results from the above graph are ideal LAB results.  In fact, the researchers were not even feeding continuous speech into the recognition system, they manually cropped certain syllables and fed them into the system.

    Stress detection on continuous speech is much more difficult for a variety of reasons.

    Adv. Lie Detector v2.1.0 released!

    Thank you for those of you who wrote in and helped me fix the EVO bug!

    • EVO Microphone fix.
    • Added requested feature: PAUSE/RESUME playback.
    • Screen Layout fixes. 
    • Fixed small bug in the averaging function.
    I have some great features planned for the next version.   Stay tuned...