Tool to perform spectral analysis of audio file. Spectrum analysis calculates the frequency of certain components of a signal, especially sound, these frequencies can be manipulated to hide data in an audio file.
Spectral Analysis - dCode
Tag(s) : Steganography
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Spectral Analysis
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Tool to perform spectral analysis of audio file. Spectrum analysis calculates the frequency of certain components of a signal, especially sound, these frequencies can be manipulated to hide data in an audio file.
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.
dCode allows playback of audio files and analysis of sound frequencies to render it in different colors and positioned on a sound frequency axis.
A list of free tools to get a spectral analysis or audio spectrum:
Example: Audacity : here (link) (Menu Analyze then Spectrum).
Example: AVS Audio Editor : here (link) (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 : here (link) (Draw with the brush in the left window (black) then click Sound> Render Image, then File> Save sound As).
Source code
dCode retains ownership of the online 'Spectral Analysis' tool source code. Except explicit open source licence (indicated CC / Creative Commons / free), any algorithm, applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (PHP, Java, C#, Python, Javascript, Matlab, etc.) no data, script or API access will be for free, same for Spectral Analysis download for offline use on PC, tablet, iPhone or Android !
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