Version 2.5


see below Description

see below Download

see below Articles & Links


EVPmaker is an experimental software for the generation of acoustic "raw material" for recordings of paranormal voices on tape, also known as "Electronic Voice Phenomena" (EVP). For this purpose, the program divides any recording of speech into short segments and then plays them back continuously in randomly order. The resulting "gibberish" still sounds like speech, but can't be understood anymore, and is therefore suited as background noise for EVP recordings. Of course, the program can also be used to generate special acoustical or musical effects.

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EVPmaker is Freeware and can be downloaded and used free of charge.

Download installation file
Setup file
(ca. 1,8 MB)

Download program source code
Program source code
(ZIP file, ca. 171 KB)

Download manual source code
Manual source code
(ZIP file, ca. 1 MB)

To install the program, please double-click the setup file after the download has succeeded.

The program source code for the "Borland C++ Builder 4" IDE and the manual source code for "HTML Help Workshop 4.74" is also available.

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Articles & Links

Building a Hardware Random Bit Generator for EVPmaker

Building a Hardware Random Bit Generator for EVPmaker (06/29/2008)

Although EVPmaker functions well with software-generated pseudo random numbers, it might be advantageous to use "true" random numbers. This article shows how you can build a simple hardware random bit generator for EVPmaker.

Using EVPmaker with SpeakJet Allophones

Using EVPmaker with SpeakJet Allophones (05/30/2008)

This article shows how EVPmaker can be set up to use the 72 allophones of the SpeakJet™ chip as an audio source to generate a robotic-like random voice which seems to produce interesting results when used for EVP sessions.

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