Added: 2 years ago
From: verklagekasper
Views: 3,436
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  • I am agnostic on the subject of EVP's: I neither immediately credit them to supernatural agencies nor dismiss them entirely out of hand. However, I think videos like this are absolutely essential for interjecting some common sense into the discussion of precisely what they are. This was informative and very well done.

  • Thanks. I guess that radio transmissions can be in this range also? That may explain EVPs that are not faked, but misinterpreted. I've heard very very few EVPs that clearly say anything (without suggestion). I suppose the ones that are clear are fakes.

  • @boardskins Yes, recorders can pick up radio signals. While this is not so likely with new models since they are shielded against that, some old digital recorders are improperly shielded and pick up all sorts of signals, from amateur radio to taxi communications. "Coincidentally", those recorders are the ones most popular among EVP artists.

  • @verklagekasper true I had a cb radio with a 2000w amplifier connected and my mother could hear me keying up through the toilet and make florescent tubes light not connected to nothing so it don't have to be electronic either .

  • @boardskins there can be errors and parts of radiowaves, static noise that inflict in the audioable range at some level, but radiowaves are at mhz level and were talking 20Khz beeing the limit of whats audiable, so it shouldnt be noticed. at least in scandinavia standard radio is about 80-108MHz..

  • @boardskins I have collected numerous "very clear" EVP that are not fake. I realize leaving the question open is philosophically uncomfortable but, no, not all EVP are so easily dismissed. I don't care one way or the other, so I'm happy to leave the question open.

  • Hello, what software are you using please? I have Goldwave but can't find those functions.

  • @mikesndbs FL Studio mostly. And Synthedit for making the modulation plugin.

  • It isn't the explanation ... I'm sorry for you... ;)

  • An excellent video- THANK YOU.

    gregW:-)  OH2FFY

  • So what you are saying is that NATURAL (real) EVP's could actually be "natural ultrasonic" audio.....that has been suggested before. Very nice theory test here. I record EVP's all the time. I get my name mentioned many times. And they repeat or answer my questions many times also. They ARE real.

  • You can fake EVP in multiple ways. It's the EVP that are not fraudulent (unless there are 24 hour EVP faking systems ongoing all over the world) that I find interesting.

  • Just because you can recreate an EVP doesnt mean that what people are getting isnt authentic. Actors can fake emotions, that doesnt mean that all the rest of us have fake emotions, because they can be faked.

  • This is a good video, the only problem is that the final product does not sound like a genuine EVP to me.

    Could people be fooled by this? Absolutely

    But anyone who knows their EVP's would be able to pick this out in a second IMO.

  • Since you can use any sound sample, you can easily make it sound more spooky, breathy or whatever you think a "genuine EVP" sounds like.

  • A very interesting theory.

  • Interessante Demo. Ich habe versucht, das mit Audition zu reproduzieren (AM-Modulation eines Sprachsignals (300...3000 Hz) auf einen 30-kHz-Träger, Abstrahlung per Lautsprecher und Aufnahme mit verschiedenen Recordern (digital oder analog). Die Aussteuerungsanzeige des digitalen Recorders reagierte auf das Ultraschallsignal, jedoch war auf keinem der Aufnahmen etwas von dem Sprachsignal zu hören. Kannst Du das Vorgehen evtl. nochmal genauer beschreiben?

  • @psqrvw

    Das urprüngliche Signal muss um ein ganzzahliges Vielfaches der Samplerate des Rekorders verschoben werden. Wenn dann noch Frequenzen in den Bereich unter 20kHz hineinragen, diese mit einem Highpassfilter abschneiden. Das ist alles.

  • @psqrvw

    Ein 30kHz Ultraschallsignal ist schon recht grenzwertig. Besser ist dieses Szenario: Der Rekorder sampelt mit 11025kHz oder 22050kHz. Dann reicht es, das ursprüngliche Signal um 22050kHz nach oben zu verschieben und dann den Teil unter 20kHz herauszufiltern. Das Signal liegt dann so gerade so eben ausserhalb des hörbaren Bereiches; da ist es wahrscheinlicher, dass es durchkommt.

  • Fascinating

  • Really a nice valuable insight in the stunning world of Ultrasound and its "phenomenal" effects in the true sense of the word - straight from a little short of studio of acoustic art. Great!

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