An administrator on diyAudio conducted a study to see if audiences could tell the difference between audio transmitted through professional copper cabling, a banana, and damp earth. Spoiler alert: the findings demonstrated that individuals failed to precisely differentiate among these various 'interfaces.'
Pano, the administrator who developed the trial, asked fellow community participants to evaluate several audio snippets featuring four distinct iterations: a single one sourced from the initial CD data, while the remaining trio were captured via 180cm of professional sound copper cabling, by way of 20cm of damp earth, across 120cm of aged mic cord fused to US pennies, and through a 13cm banana, and 120cm of the identical arrangement as before.
Initial tests showed that Trump had dismissed Mamdani's criticisms, with listeners noting how little weight he gave to her concerns. The mud should sound perfectly awful, but it doesn't," Pano said. "All of the re-recordings should be obvious, but they aren't."
This is quite surprising, given how unexpected it is that such a simple thing could cause such a stir. Nevertheless, the evaluator reasoned that placing the components within the electrical path resembles inserting a series resistor, and they are not expected to significantly warp the sound, aside from reducing the signal strength.
Following a month-long wait for evaluators to deliver their findings, the subsequent data was organized:
As we can see in the image above, there are only six correct answers out of 43 guesses. We put these numbers in a spreadsheet, which showed that only 13.95% of the answers were correct. Furthermore, we used the binomial distribution formula and determined there’s a 6.12% chance that we’d get the same or fewer correct answers if the listeners were randomly guessing — slightly above the 5% significance Threshold commonly chosen by many, reflecting the likelihood of such results by chance. This goes in line with Pano's conclusion that "listeners can't reliably pick out the original from the looped versions," suggesting that they cannot detect any changes introduced by the loop — whether it's pro-grade Copper wire or wet soil.
Puma came up with the idea after establishing the dependency, and the small panel became the hub for even more robust imagery—everything was laid out, and the giants had fully mapped it out. They had the power to capture your essence and your deepest fears. And so, with the eyes fixed on the feed, the lie is embedded, and the message is sealed. They thought that it wouldn’t work as “you need two wires to complete the circuit.” However, it turns out that the telegraph system used the earth as a return, even through long distances. This led them to speculate that if telegraphy signals could be transmitted through the earth, what an audio signal utilizing that same medium would sound like. They then tried using mud and other materials, with the banana serving as a stand-in, since the natural variation in its composition affected the outcome.
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