True. You need to digitise them and use something like this: DeltaWave Audio Null Comparator It adjusts for phase and timing differences so you should be able to get useful results from comparing your two runs.

They also had to use a DBX style compression / noise reduction system, because of the noise introduced by the head switching at the end of each scan. It wasn't a problem for video because the head switch was hidden in the flyback for each frame. Most decks had a tracking control knob, if you...

I recall the predominant theory it was to do with the different acoustic space dimensions. The smaller the room, the lower the actual SPL for the same perceived SPL. I'm still looking, the relevant archive is on an old machine which I will need to resurrect.

Hands up anyone who has not been surprised at how different a recording of their own voice sounds.

I recall a conversation quite a few years ago, I think on a recording and mastering engineers' mailing list, that we tend to listen to in-room reproduction at a significantly lower SPL than the original live performance. That is, when played back at a level that you judge to be equal to the...

No, the amplifier has to be able to supply high voltage at high frequencies, not high power. The impedance of the coils rises with frequency, requiring more voltage to be able to drive enough current into the coils. A constant current drive high power amplifier is a tricky beast, it's much...

You imply that you have a "state of the art" LP reproduction system. Do you also have the means (an ADC) to record from this system? It doesn't have to be better than RBCD quality. What I'd really like is a minute or so of the 1 KHz track off a test record. It's for the "party trick" I used to...

As an aside, do you know why the amplifiers had to be capable of so much output?

Fixed it for you...

You appear to know as little about NIN as you know about audio science.

"Sounds like ass", of course. :ksc75smile:

Hopefully anyone interested in metal genres and high fidelity knows about http://www.metal-fi.com/

May I suggest that you're an ideal person to write a brief explanation of gain staging and how people could achieve optimum staging in their systems?

:face_palm: Without EMF, there would be no signal.Maybe you mean EMI?

You state this as a fact, which implies you've either done these tests or have seen test results showing this. Do you have some pointers to the results, or is it something to add to the list of things to be tested?

Remember the Teletubbies? The music was surprisingly sophisticated. A good thing too, as I was exposed to a lot of it, being a stay-at-home father of toddlers at the time. I don't know who these guys were, but it was typical of the things that popped up. There were a couple of albums...

Indeed:

This is the Sound Science sub-forum. If you aren't prepared to consider that you might be wrong about your beliefs in the differences between your headphone cables, why are you here? There are other areas of Head-Fi where you will find like-minded people who will validate your beliefs.

There is a problem with that method. As well as halving / quartering the frequencies, it halves / quarters the tempo - the music plays ssslllooowwwlllyyy. It makes it hard to relate any sounds heard to the beat of the original music. There are plugins that can reduce the pitch without changing...

Simple. Just tip your laundry service more generously.

Why not avoid the problem altogether and not tin the wires? :)

No, in my opinion, spring loaded is fine for low to mid fidelity. As I said, on speakers with pretensions to high fidelity I prefer screw terminals. Banana plugs used to be OK so long as you got good ones, there are some bad ones around. Sadly, the safety wowsers have largely nixed them...

I can appreciate that, I have https://en.wikipedia.org/wiki/Essential_tremor . Tinning indeed makes sense for spring-loaded terminals, but I am surprised that any speakers with pretensions to high fidelity would have them. :) My personal philosophy is that speaker wiring should be done to the...

Do not tin the wire if it's going to be terminated in a screw or clamp. The solder will cold flow over time and the connection will loosen.