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.
Spectral Analysis - dCode
Tag(s) : Steganography
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Spectral Analysis
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Spectral analysis of Signals
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 to perform these tasks. (see below)
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?
Sometimes a text (some letters) or an image (rather a silhouette) is hidden in the sound spectrum. A list of free tools to get a spectral analysis or audio spectrum:
Example: Audacity : [] (Menu Analyze then Spectrum).
Example: AVS Audio Editor : [] (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):
Example: Coagula Light : [] (Draw with the brush in the left window (black) then click Sound> Render Image, then File> Save sound As).
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Source code
dCode retains ownership of the source code of the script Spectral Analysis online. Except explicit open source licence (indicated Creative Commons / free), any algorithm, applet, snippet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in any informatic langauge (PHP, Java, C#, Python, Javascript, Matlab, etc.) which dCode owns rights will not be given for free. To download the online Spectral Analysis script for offline use on PC, iPhone or Android, ask for price quote on contact page !
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