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melodic range spectrograms of possible EVPs
#1
Hello all

I would like to share my way to obtained sound files and get some feedback about the spectrograms,  sounds and noises recorded
I use audacity recording with an external mycropohone in interior home room practically isolated from external noises
After some 30 to 60 secs recording,stopping and in the obtained sound file I search a significant spectrogram by amplifying the signal combined with noise reduction.
When something significant appears as spectrogram I open the sound file with the melodic range spectrogram program from sonic visualiser,to get the image. ¿Maybe all the inaudible electrosmog, wifi waves,handys short waves, etc could explain these sounds?

I collected some dozens sound or noise files and uploaded them to share in soundcloud as electronic voices, illustrated with a melodic range spectrogram fragment:

a sample:

electronic voices


thanks for your feed back would be of great help
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#2
First the more you adjust a sound the more its modified. Next you also have to wonder how much RF interference you are experiencing. The equipment can also give off interference.
Have you searched for all the towers near where you are recording?
Belief bias occurs when we make illogical conclusions in order to confirm our preexisting beliefs. Belief perseverance refers to our tendency to maintain a belief even after the evidence we used to form the belief is contradicted.
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#3
(01-20-2020, 02:03 PM)UglyNRude Wrote: First the more you adjust a sound the more its modified. Next you also have to wonder how much RF interference you are experiencing. The equipment can also give off interference.
Have you searched for all the towers near where you are recording?

Great thanks for the answer.I agree there is surely a lot of environmental noise and inaudible radio waves, which finally are incorporated to the audacity recorded files. At least my home is in a garden area with no towers or antennas in the nearing.
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