Only after obtaining written consent can you then proceed with the analysis. Results can not be guaranteed but best results are obtained when something is to be gained or lost as a result of a statement. Simply making a false statement when no jeopardy is involved will generally not yield results. False indications are sometimes triggered by frequency variations expressed at the time of recording but are generally obvious when compared with the context of the statement. This software is provided for educational purposes only for personal experimentation and may not be used to analyze statements made by any human being without their specific written consent and only if allowed by law.
Full duplex means playing a wave file while simultaneously recording a wave file.
Move the Sound Recorder aside on the screen and open another one. Position them on the screen so that you can see both of them at the same time. Click the record button on the bottom Sound Recorder, and then click the play button on the top Recorder. When the wave file is done playing stop both recorders. Rewind the bottom one and click the play button, it should play back the same wave file that is loaded into the top one.