Software

For EVP Research

oday an audio editor in combination with a computer substitutes the conventional cassette recorder or the tape recorder. On this page various programs are introduced which turned out to be useful for the work with EVP recordings. Some of these programs were written by the author of these pages, others are originating from other vendors. The DOS programs listed at the end of this page are shown here only for historical reasons.


Contents

see below Adobe Audition

see below GoldWave

see below Audacity

see below EVPmaker

see below EVPdemo

see below CueListTool

see below Expander

see below AuDigit

see below VoiceDoc



Adobe Audition
 

Audition is the successor of the legendary Cool Edit. It's a very versatile and powerful audio editor with filter functions to remove disturbing noise from sound recordings. The 'Hard limiter' function is very effective to equalize big volume differences within a recording (which occurs often in EVP recordings). Audition also features a so-called Cue List for labelling and retrieving quickly any section within a recording, which makes it an ideal tool for analyzing and logging EVP recordings. Unfortunately, the program is not quite cheap.

The author of these pages is using version 1.0 of Adobe Audition by default.

Operating system: Windows, MacOS
Conclusion: good, but expensive

Program description and download


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GoldWave
 

Although GoldWave is unable to hold a candle to Audition/CoolEdit with regard to functionality (this is a personal opinion of the author of these pages), it's widely used among EVP researchers. Playing back EVP recordings is a bit more comfortable than with other programs - especially when you are often listening to reverse EVP.

Operating system: Windows
Conclusion: suitable and cheap

Program description and download


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Audacity
 

Audacity is a "free" audio editor which is available for different operating systems. It features a lot of functions to record, edit and filter sounds. However, the wave editor is a bit laggy.

Operating system: Windows, MacOS, Linux/UNIX
Conclusion: suitable and free

Program description and download


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EVPmaker
 

EVPmaker cuts up a WAV file and mixes up the fragments in randomly order. The resulting "gibberish" still reminds of the sound of the original speech signal, but it contains no more intelligible information, thus it is suitable for recordings of paranormal voices, also known as "Electronic Voice Phenomena" (EVP). Of course, the program can also simply be used to generate special acoustical or musical effects.

Operating system: Windows
Programming languages: C++
Developed: 2000-2008

Program description and download


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CueListTool
 

Sound editors like Cool Edit, Adobe Audition or Steinberg WaveLab provide a so called Cue List which allows to mark and label individual sections within an audio signal very easily. This is suitable for the documentation of EVP examples. With CueListTool it's possible to copy the Cue List from one WAV file to another. This is useful if for instance several people are working on a copy of the same WAV file and want to exchange or merge their results later.

Operating system: Windows
Programming languages: C++
Developed: 2001-2004

Program description and download


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Expander
 

Expander is a small freeware program for slowing down the playback speed of a WAV file without changing its pitch. Although the operation is a bit complicated, it works faster than the Stretch function of CoolEdit, and the sound sound quality is much better.

Program description and download


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EVPdemo
 

This program was made to simplify and accelerate the process of the creation of EVP demo tapes or CDs, which is usually very time-consuming if it is done manually. EVP demo files can contain any number of EVP examples. The EVP examples can be recorded newly, or existing EVP examples can be added to a Demo. Each EVP example can be provided with a label, a written note, and a spoken comment. The sections which make up both the actual voice and the voice plus its acoustical environment can be determined with the help of a simple wave editor. Finally EVPdemo can start an automatical playback of the entire demo, including all or only the marked EVP examples. During playback, each EVP example is announced by a sequential number (e.g. "Example No. 9"), followed by the spoken comment; next the voice is played a predefined number of times, and finally the voice plus its acoustical surrounding is played. This automatically running demo can be recorded e.g. on audio cassette or MiniDisc, or the program can generate files for a CD compilation which can be used by CD burning software (like e.g. Nero Burning Rom) to create an audio CD.

The program has a German user interface.

Operating system: Windows
Programming languages: C++
Developed: 2003

Program description and download German


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AuDigit
 

The purpose of this (MS-DOS) program is to generate acoustic "raw material" for recordings of EVP by means of random controlled speech synthesis. Originally it had been developed for the DOS-Digitizer German, which was a substitution for a sound card. Support of SoundBlaster-compatible sound cards was added later. AuDigit is the DOS predecessor of the Windows program EVPmaker.

The program has a German user interface.

Operating system: DOS
Programming languages: C, Assembler (TASM 2.5)
Developed: 1991-1997

Program description and download German


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VoiceDoc
 

VoiceDoc is a DOS program for archiving and documentat EVP samples. This program is available in two versions - one for the DOS-Digitizer German, and another for SoundBlaster-compatible sound cards. VoiceDoc is the DOS predecessor of the Windows program EVPdemo.

The program has a German user interface.

Operating system: DOS
Programming languages: C, Assembler (TASM 2.5)
Developed: 1997

Program description and download German


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