unforum

[SeekerX]

OK, now I read through your links. Really interesting stuff, convolution. I like the idea that you could also mix two instruments or whatever signals with each other while having real-time-control over the parameters. Sounds like a cool method to morph sounds which was pretty badly developed back in my active days. Makes me want my Cubase/Logic back .
I take it from you then that deconvolution is possible without the impulse spectrum. It's still strange to me, but I take your word on it.

[vapor]

Not being one to just believe EVERYTHING I read on the internet, I've decided I will conduct my own convolution test, just for the hell of it.

I'll record my voice speaking into a box or something as an impulse response and then convolve it with some synthesized tones (probably will use the phi tones). Then see if I can recover my impulse response using deconvolution.

That will seal it for me. If I can recover my own voice using deconvolution, I will be able to say with confidence that no hidden messages are wrapped up inside expcnv.mp3 using convolution.

[Headman]

Could be some type of encryption key? Perhaps they recorded the sound for later access? Did they have keypad access panels back in the 70's? I will have to research. It's a stretch I know but just another option to think about. I know that all the keypads that I ever used on military installations never made any sounds when numbers were entered to deter the recording or memorization by unauthorized personnel. But we are talking about an ARG for a sci fi movie possibly set in the 70's.

[ssx3master]

[vapor]

[ssx3master]

What about that tone you get when you try to click on one of the buttons on the taskbar on the OS on STIES? It doesn't sound to assuming, but worth a try as the test tone maybe? It is the only other sound we've gotten from this, right?

[theforevermachine]

braegen14 soundfile

[giganticbrain]

Echo?

[jiblington]

it might just be me but the longer we look at this and find nothing new the more i think its just a synth sound with some hi and lo pass filters on it which is pretty standard, theres similar style sounding synths on reason (music software) if peops are aware of that, also i respectfully disagree with the forever machines theory as the first and third tone sound identical when put next to each other to me, and also there are so many ways to make a sound vibrate like an LFO on a synth for example

[SeekerX]

theforevermachine:
I do agree that the tones are modulated. But to achive this you don't need any variable frequency carrier signal.
I'll go with synthesizer terms now:
You could have the same "instrument" played on two "voices", one tuned a few cents upwards, the other a few cents downwards the tone ladder (cents are increments of semi tones). This would create self-modulation by differences in the frequencies of the maintones themselves as well as their harmonics.
You could also apply an LFO (low frequency oscillator) to the envelope of your "voice" to achive a similar effect, although it would be more "stationary" if applied to just one source. But apply one to each of the detuned "voices" and you'll have an even more complex sound.
None of those methods require any carrier signal.
And besides that, from a musical perspective the file outputs 8 numbers and those 8 numbers ALL match the golden ratio row. That is just too consistent to be coincidence in my opinion.
Attached a pic of the waveform because I count different "beats" by simply looking at it. More like 2,3,2,3,4,5,5,5. Although it doesn't matter at all in my opinion.

[jiblington]

i was going to see if i could get a close match to the sound of the tones using the synths on reason (sequencing software) to back up the point that its easy to make a complex sounding sound on it but it would take hours experimenting that i dont have today(you could achieve a complex multi layered sound easily as you can run three sounds through the thor synth and you can run an almost infinite number of these chained together if your pc is good enough), a person more experienced with sythns would be quicker, my expertise is more live audio and studio production rather then electronic music sythesis, no ones got thomas dolbys number have they, lol

[multipsychoapopheniosis]

[Euchre]

For those of you that didn't see the movie Contact or read the book (I've done both), the story does a very good job of showing how multiple messages may be embedded in a single signal. We've established the phi sequence, but the apparent fact is that there's also a simple arithmetic sequence as well. It is a little odd that we'd get a more complex progression out of it first, but we did. Now that's two sequences we've teased from this signal, maybe we can find another.

[SeekerX]

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[lirubinoff]

spectrogram