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
Spectral analyzer of Signals
Answers to Questions (FAQ)
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 (WAV, MP3, etc.) 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 'Spectral Analysis' algorithm, applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any 'Spectral Analysis' function (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and no data download, script, copy-paste, or API access for 'Spectral Analysis' will be for free, same for offline use on PC, tablet, iPhone or Android ! dCode is free and online.
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Questions / Comments
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