Hello there
Didnt Carl Sagan etc use a numeric math code which all species should decipher if they've reached a certain level of mathmatics on the voyager probe audio disk?
Anyone tried using that algorithm? or is it too obvious?
Rdgs
LoK
Can somebody check these at some point for me? I've been through all the sequences we have (ignoring the first one from the video, which is only a partial sequence). The unknown_artefact_audio_long.mp3 is the first one, then UA 1..5.mp3.
011
100100
0010010
1001011
0100101
0110011
1101010
0011010
100101
0110101
0110110
00100
100100
0110101
0100100
1001011
1100110
1010010
1010110
0011001
0110011
0110110
010011
0101011
1011001
0100110
0100101
1001010
1001001
0101011
001001
1100100
1010110
010
11011
100100
011011
110010
010110
010011
100110
0110101
0101100
0110010
1100110
01100
101001
0101100
0011011
1011001
0010010
0010100
0100110
011001
1001011
1010110
00110
0011001
001100
0011010
1010110
0010011
0110110
1001101
1001100
1001011
101001
01101
011010
010101
0101011
1001001
0110010
1010110
101010
0110011
0101001
1101001
I'm not convinced about my results, because there are an awful lot of 6-bit numbers there. However, if we assume that the first entry in any sequence is the header...we have 2, 3, 4, 6, 12, 13 and 19. That means I either missed the first entry off when I recorded a couple of them (unlikely, given that all except one have the same number of entries), or it means we have at least 19 sequences to record.
I would do what I've always done to things I'm not sure about...run away screaming like a little girl *
* This is in fact an insult to little girls who I am pretty sure are far braver than me.
.I'm pretty sure some will try to ram it.
So, the things I noticed was that the "pips" come at two different frequencies, high and low, but they come at a distinct interval, separated by pauses.
The "pips" were in groups of 7, but one of the groups only had 6.
The "poops" are syncopated with the "pips" and don't match up.
Are the "poops" coming at equal intervals as well, like the "pips"?
What is the ratio of the speed of the two sounds?
What is the frequency difference between the two 'pips'?
Is the 200% speed recording I heard on PCGamer the full recording we have?
Ha, this sounds like the original Elite being loaded via cassette.And here's an alternative approach - instead of speeding the audio up, shift the pitch up (transpose upwards) while maintaining the same playback speed.
Something like this: https://www.dropbox.com/s/opekevrqtwjhq7g/UA_transposed.mp3?dl=0
based on the original recording from: http://www.digitalscream.org.uk/audio/unknown_artifact_audio.mp3
Sounds rather more data-like and less tuba-like. Back to RL work now.![]()
I looked at at the timings a bit earlier. They are not perfect, but are close. The volumes of the honks also change quite significantly, especially on the first and last honks of a sequence. The gaps seem to differ most based on whether it is high or low pitches that are being produced with the start of a low pitched honks having a longer gap from the start of the previous honk than a high pitched honk.
I was hoping it would be possible to flag the exact points honks would be expected, but this is not the case. The different sounds that are being produced are not in time with each other the alternating whale song sounds are not in time with the honks - this is why they sometimes overlap and are difficult to hear.
I am am also intrigued by the period of quiet clicks and scrapes generally between the whale song and the honk. I have not had chance to consider this much yet though.
.
Does anyone remember the Star Trekin' spoof song from years ago? There is a line in it which is probably suitable and that is:
.
"We come in peace, shoot to kill"