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Spectral Analysis

Tools to compute a Spectral Analysis which calculates the frequency of some components of a signal, especially audio signal, these frequencies can be manipulated in order to hide data in audio files.

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Spectral Analysis -

Tag(s) : Steganography

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Spectral Analysis

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dCode does not enable to realize spectrum analysis or to hide text by generating noise un a audio file, but here are free softwares to help.

Also on dCode: DTMF CodeMorse Code

Tools to compute a Spectral Analysis which calculates the frequency of some components of a signal, especially audio signal, these frequencies can be manipulated in order to hide data in audio files.

Answers to Questions

How to find a text in an audio file?

dCode suggests these tools (free):

Audacity : here (Menu Analyze then Spectrum).

AVS Audio Editor : here (Button Spectral in the toolbar).

The tools offer other options such as representation of the signal or sound frequencies.

How to hide a text in an audio file?

dCode suggests these tools (free):

Coagula Light : here (This program allows the user to convert images into sound)

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Source code

dCode retains ownership of the source code of the script Spectral Analysis. Except explicit open source licence (free / freeware), any algorithm, applet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any snippet or function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in PHP (or Java, C#, Python, Javascript, etc.) which dCode owns rights can be transferred after sales quote. So if you need to download the Spectral Analysis script for offline use, for you, your company or association, see you on contact page !

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Source : http://www.dcode.fr/spectral-analysis
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