I already did that. Someone else did it as well.
As you have the actual data, I find it odd that you do not overlay them to show that they are "unchanged". It's ok, everybody can inspect the plots and see for themselves.
Then you should have no issue with overlaying them, which will show the carriers have different frequencies.
edit: I find the statement "frequency can't be concluded from a time domain signal" as interesting, as all I had to do was examine the zero crossings.
Had you modulated the signals exactly as real musical content does, there would have been no miscommunication. Using raised sine modulation, which I cannot think of a mechanism to produce that with musical instruments, was a misapplication.
edit..the tact of "shoot the messenger" is interesting.
Our disagreement is an unusually odd mix of technical expertise differences, language differences, and worldview differences. It is my express wish to keep the discussion civil, and you clearly feel the same. Despite our obviously odd interaction, I do appreciate your point of view, thank you for your time and effort.
jn
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Hans,
On an entirely different note..
You had mentioned your ESL's neon blinks every minute or so. The total charge being lost per minute can be calculated knowing the capacitor value across the neon and assuming a initiation and quench voltage. Using that rate, the leakage current can be derived, and the voltage drop across a membrane with 10e+12 ohms per square can be calculated. Unfortunately, without knowing exactly where the leakage path is, it's kinda hard to establish what gradient may exist across the panel, only a worst case value.
That said, since nylon by nature is hygroscopic, I suspect that the nitrogen bagging I mentioned might be able to recover the edge of the diaphragm insulation. I think it would be a great thing for you to try, no? I believe it is a totally innocuous thing to do. Success could be determined by watching the bulb. Only you could determine if it helped the sound.
ps. and if successful, it might be a simple way to recover, even partially, the diaphragm.
jn
On an entirely different note..
You had mentioned your ESL's neon blinks every minute or so. The total charge being lost per minute can be calculated knowing the capacitor value across the neon and assuming a initiation and quench voltage. Using that rate, the leakage current can be derived, and the voltage drop across a membrane with 10e+12 ohms per square can be calculated. Unfortunately, without knowing exactly where the leakage path is, it's kinda hard to establish what gradient may exist across the panel, only a worst case value.
That said, since nylon by nature is hygroscopic, I suspect that the nitrogen bagging I mentioned might be able to recover the edge of the diaphragm insulation. I think it would be a great thing for you to try, no? I believe it is a totally innocuous thing to do. Success could be determined by watching the bulb. Only you could determine if it helped the sound.
ps. and if successful, it might be a simple way to recover, even partially, the diaphragm.
jn
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What would nitrogen bag do compared to the free air resonance of speaker?
If I recall, it would lower it?
-Richard
New Rules.
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I have no idea. displacing the 20% oxygen might change density a tad, but didn't think it would change resonance much.
If it does, then bagging to recover insulation and then removing it would be easy enough. Think of it as a reconditioning cycle.
By bagging, I mean running a very slow stream into the panel to slowly replace the air, and just waiting for the entrained film moisture to reduce.
jn
It is amazing that they can pull five G's. I never would have suspected they could get the coefficient of friction to be that high.
jn
I follow NHRA and have been to many nationals.......had no idea the parasitic loss for the blower was 600hp!
A well recorded staging/burnout would be a good way to test mid bass of your system...... Think yer quads could handle it!? 😀
How Loud Is A 10,000 Horsepower Nitro Car Exactly?
A well recorded staging/burnout would be a good way to test mid bass of your system...... Think yer quads could handle it!? 😀
How Loud Is A 10,000 Horsepower Nitro Car Exactly?
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Its kinda nice to see what can be done by engineers when let loose to do the very best they can.... tire technology, engine dynamics, fuel chemistry blends, etc etc. Details, but it adds up to some very impressing performance. Standing to the side 50 feet away... the ground vibrates, and when those air butter-flys open, the response time is amazing short.
Wish we could see that in sound repro. Never mind the cost. The experience and fun of developing it is what those cars are all about. Just need some sponsors.
We can do better than where we are now. I am sure of it.
-Richard
No. But they have been retired for high powered M2's now.
The supercharger rotors run very tight -- no gap. Using teflon inserts in the rotors, they drag and seal so psi of upwards of 80 psi wont leak out/bleed off.
Lots of details. In audio, details have the same accumulative affect on the sound. Lots of audio details which get poo-poo'ed make for exceptional performance when all combined in the best ways.
THx-Richard
Your preaching to the choir on that last statement......as with anything it’s all in the details!
I’ll bet the M2’s could put out a reasonable facsimile of a run.
I’ll bet the M2’s could put out a reasonable facsimile of a run.
That's the one that got me too. Mind you, it is producing 50psi in the manifold so that's not gonna come cheap.
The other part was the 2.5" fuel line.
All relative I guess.
🙂 Which is the bottom line 😉 Markw4 also tried to explain, in a different way, how you can't use the time domain to "see" the frequencies
You guys seem to know sumptin bout this mechanical stuff..so a question.
We are using bladders to force parts together, 8000 psi water.
I am very very concerned that if someone grabs a hose or pipe that develops a pinhole leak, that the stream will drive through skin. Since it's not treated water, I am concerned a human could die of sepsis given enough dirty water injected.
I recall (IIRC) a popular science or mechanics article maybe 5 decades ago where someone did have that happen although it was hydraulic fluid. The picture of the grossly swollen hand just can't be ripped from the eyeballs..
Anybody ever hear of this with water?
jn
We are using bladders to force parts together, 8000 psi water.
I am very very concerned that if someone grabs a hose or pipe that develops a pinhole leak, that the stream will drive through skin. Since it's not treated water, I am concerned a human could die of sepsis given enough dirty water injected.
I recall (IIRC) a popular science or mechanics article maybe 5 decades ago where someone did have that happen although it was hydraulic fluid. The picture of the grossly swollen hand just can't be ripped from the eyeballs..
Anybody ever hear of this with water?
jn
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That is a non sequitor. An incorrect argument does not become correct by repetition.
Besides, what part of "the waveform has completely changed" should we overlook in our quest to say "pay no attention to the man behind that curtain"
jn