I don't believe cables make a difference, any input?

[Brett]

Originally posted by tc-60guy



HA! Good transient response is measurable! Checkmate!

[fredex]

Rant:
During World War 2 morse code operators were found to be able to read (decode) signals way below the noise floor. I used to think that this was proof positive that the subjectivist were right and the engineers were wrong. I mean here is something that is proven audible but can't be measured.

But I was wrong again, NASA uses computers to enhance photos by bringing details out of the noise using similar techniques our brains use. In audio a signal can fade away to nothing it doesn't suddenly cease to exist when it reaches the noise floor. If you have a pattern to look for you can find it, with your ears/brain or a microphone/computer.

The difference is that the mic/computer combo is reliable (you can trust it) whereas the ear/brain combo is unreliable and you should not trust it.

Any sound the ear can hear is able to be measured using today's technology.

Am I wrong again?

[Alan Hope]

Originally posted by fredex
Rant:
...

Any sound the ear can hear is able to be measured using today's technology.

Am I wrong again?

So, when I listen to a full orchestra, and find that one cable gives one component of the sound (upper register strings) a very slight - but persistent between recordings - "glassy" tone which sounds unnatural. But another cable doesn't.

How do I measure that difference using today's technology?

[tc-60guy]

Howdy, I know I keep harping on Dynamic compression and harmonic distorsion. They seem to be the primary limitation in speaker design. You can use multiple drivers to lower those numbers but that introduces dispersion effects which can be vexing indeed! Until those issues can be resolved, speakers will remain problematic!

[fredex]

Originally posted by Alan Hope

So, when I listen to a full orchestra, and find that one cable gives one component of the sound (upper register strings) a very slight - but persistent between recordings - "glassy" tone which sounds unnatural. But another cable doesn't.

How do I measure that difference using today's technology?

Leaving the rocket science to NASA you keep it simple.
Record the electrical output of your amp/preamp whilst using cable A.
Record the electrical output of your amp/preamp whilst using cable B.
Compare the two.
The difference you find is what you are hearing.

Hope this helps

[tc-60guy]

Originally posted by fredex


Leaving the rocket science to NASA you keep it simple.
Record the electrical output of your amp/preamp whilst using cable A.
Record the electrical output of your amp/preamp whilst using cable B.
Compare the two.
The difference you find is what you are hearing.

Hope this helps

Forgive me Fredex, You have to measure the cable's effect at the speakers output to have any relavence in the real world. The question is, how do we measure and what do we measure? How many angels DO dance on the head of a pin?

[fredex]

Post #1325 I was assuming interconnects

[fredex]

Originally posted by tc-60guy

Forgive me Fredex, You have to measure the cable's effect at the speakers output to have any relavence in the real world. The question is, how do we measure and what do we measure? How many angels DO dance on the head of a pin?

yeah I was assuming interconnects. You are right you have to measure the difference after the thing that changed. A mic in the room to measure would be good and will also reveal the differences that Alan hears

[Brett]

Originally posted by tc-60guy
Howdy, I know I keep harping on Dynamic compression and harmonic distorsion. They seem to be the primary limitation in speaker design. You can use multiple drivers to lower those numbers but that introduces dispersion effects which can be vexing indeed! Until those issues can be resolved, speakers will remain problematic!

I agree re dynamic compression, but THD and high SPL can be solved with good design and retaining controlled dispersion; look at the Geddes designs for example.

Originally posted by tc-60guy
Forgive me Fredex, You have to measure the cable's effect at the speakers output to have any relavence in the real world. The question is, how do we measure and what do we measure? How many angels DO dance on the head of a pin?

So? Connect the cables to a given speaker and measure A and B. Same thing.

[tc-60guy]

[QUOTE
So? Connect the cables to a given speaker and measure A and B. Same thing. [/B][/QUOTE]


Hello Brett, So it would seem.