Fernando Luis Cacciola Carballal Posted December 8, 2021 Share Posted December 8, 2021 Hi People, In this thread I wanted to document and share the progress in this project I'm working on. The idea had been discussed already in some other threads here, but in a nutshell, it goes like this: Spirits could send us digital information, that is, made of zeros and ones, using any of our existing audio-over-noise technologies, by encoding the zeros and ones as energy bursts of two different levels. Let me elaborate... Imagine you have some sort of highly noisy voice communication channel. Like it used to be the case with telephone land-lines with a broken or twisted cable. You try to speak but no one can understand a word you are saying because the noise it way too loud. One thing you could do is denoise the communication. That is what we do in normal voice communications. And that's also what we do in conventional EVP. But the other thing you can do is, rather than trying to speak, try to encode the words in a way that is natural for a highly noisy channel. There are many codes you can choose. For example, you can use morse code. Morse code needs three distinguishable symbols: a separator (or gap), a short mark (or dot), and long mark (or dash). Morse code was extremely popular in the past. It made it possible for us to communicate text messages over many different channels, along short or long distances. Being successfully used on the telegraph, it made non-local communication a practical reality for the first time. The three symbols of morse code (gap, dot and dash) are combined to form letters. And there is the modern binary (digital) code. There are two symbols: zeros and ones in binary code, unlike three as in morse code. While morse code is a varying-length encoding, meaning that different letters use different numbers of symbols (the A is dot-(gap)-dash, using 3 symbols, but the P is dot-dot-dot-dot-dot, using 9 symbols), binary-code is a fixed length encoding: 8 bits (zero or one) make a byte, and ANY letter is encoded as one byte, even if it has leading (unneeded) zeros. In terms of the code itself, not the possible forms of transmission, Morse code is very suitable for human operated communication, while binary code is very suitable for computer operated communication, and since we are using computer software to process ITC information, is seems best (to me) to use a binary (not morse) code for digital ITC. Besides the code (more or binary for instance), there are many ways in which you could try encode information, such as speech, in a noisy medium like the ones we use in EVP. This is called Modulation. Modulation is the process of putting (or adding, or embedding) some information (in the form of a signal) on top of something (another signal) called the carrier. In EVP, the carrier signal is the background noise, which is sound, so it is an Analog type of carrier (there are digital carrier signals as well, for what is worth). There are many ways to modulate over an analog signal. If the information we are trying to modulate is itself analog, like a sound, as in traditional EVP or Radio transmission, we have for example AM (Amplitude Modulation) or FM (Frequency modulation) Here, however, we are trying to modulate a digital, not analog, signal. That is, the spirits would not try to "speak", as in conventional EVP, but to transmit their speech encoded in binary form. There are different known ways to modulate a digital signal over an analog carrier. There is, for example, ASK (Amplitud Shift Keying) which is the digital equivalent to AM. And there is FSK (Frequency Shift Keying), equivalent to FM. There is also PSK and QAM (which is a combination of two ASK signals). ASK, Amplitude Shift Keying, is essentially based on shifting the amplitude of the carrier signal such that a digital one corresponds to a high amplitude and a digital zero corresponds to a low amplitude. In sound terms, zeros are low volume, ones are high volume. All these modulation methods (AM,FM,ASK,FSK etc...) stand on the fact that we can generate and control to a certain extent not just the signal to modulate but also the carrier. For example, morse code is typically transmitted using what is know as OOK: ON-OFF Keying. That is, the carrier itself is turned on or off, for a controlled period of time, in order to modulate the gap (OFF), the dot (ON for a short period) or the dash (OFF for a long period of time). In ITC, the carrier is a stream of noisy sound, and, as far as we can tell, spirits can barely shift the noise. They cannot for, instance, suppress the noise below a differentiation threshold. If they could do that, they could very easily use OOK to send any digital message, whether morse code or binary. So, how can they modulate, that is, "key in" the zeros and ones (or gaps, dots and dashes) when all they can do is barely shift the stream of noisy sound? Going back to the broken, noisy, telephone land line of the beginning, what I would do is to just shout. That is, rather than trying to turn the carrier, the noise, off, I try to speak louder. If I get to shout louder than the background noise, then I have a form of ON-OFF Keying. Let me call this form of keying TWAK: Three-Way Amplitude Keying. TWAK can be considered as a sort of modified, extended OOK. Rather than a two-level ON-OFF, we have a three-level LOW-MID-HIGH distinction. In order for spirits to send us a binary-encoded message through TWAK, what they need to do is shift, or influence, the amplitude, or energy level, of the background one or two levels up the noise RMS (or noise volume) Andres experiments seem to confirm that they are capable of modulating bursts of energy well above the noise background level. What they need is to be able to select two differentiable levels above. 2 Quote Link to comment Share on other sites More sharing options...
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