![]() The dogs, who can hear ultrasonic sounds, then learned to do things according to the signals, where the humans hear nothing. They had a 192kHz soundcard playing ultrasonic “dog commands” over a piezo speaker system. There had been a predecessor “ultrasonic” plugin in the german Audacity forum, that had originally been written for a dog training school. Maybe subliminal messages can help me to think “good”, so I have nothing against subliminal messages, but I cannot promise that it really works.Ģ. Strictly spoken, I do not necessarily need subliminal messages to make me feel good, it’s mainly my own thinking that infuences my perception, often much more than I am really aware of this. The same effect can also work the other way around. ![]() If I get up early in the morning and think “everything is bad” then probably the whole day long everything will appear as “bad” to me, mainly because I make myself think that everything is bad, even if the day is good. I generally try to be unbiased in answering this question, but I think that it is mainly matters if you believe in subliminal messages or not.ġ. ![]() I cannot promise that the “Subliminal” plugin (or any other subliminal message machine) produces any useful result. I only translated the electrical description in Lowry’s patent paper into Nyquist code. The “RFT” in edgar-rft is the german abbreviation for audio/video recoding equipment electrician. I have been listening to the silent subliminal messages for two weeks now. Original under Silent Subliminals with Audacity - text is in German but nothing you do not already know… The maximum modulation depth is at a carrier frequency of “track-sample-frequency / 2 / sqare-root-of-two”: (princ "The track sample frequency must be minimum 44100Hz.") (let ((result (mult 2 (cut #'lowpass8 (hp sound 80) cutoff) ![]() (setf sound (funcall function sound frequency)))) otherwise the modulated carrier aliases. the difference between the carrier and *sound-srate*/2, because It must not be greater than carrier/2, but also not greater than The CUTOFF is the maximum allowed frequency in the modulator. We have two Nyquist frequencies, carrier/2 and *sound-srate*/2. I cannot find any aliasing or mirror frequencies with the Audacity “Analyse > Frequency Analysis” and everything looks pretty well. It works with a cheap 44.1kHz standard soundcard. I think I have a finally working Silent Subliminal plugin producing an SSB modulated carrier like the original Lowerey machine. Audacity_1.2.x > Mac OS X > Silent Subliminal Function.With some help of a professional hypnotist (in the medical sense, not in the humbug sense) and Steve’s code from: If the attached plugin below still raises errors (“Nyquist did not return audio” or similar) then in the “Subliminal” effect window press the “Debug” button instead of the “Ok” button and copy the text from the Audacity Nyquist “Debug” Window here into the forum. I just have tested the (obsolete) Version from above plus the (more recent) Version from the German Audacuty forum (attached below) and both versions work with Audacity_1.3.13-beta on Debian Linux with no errors.
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