electrical engineers: Why do cables improve sound?
Oct 3, 2006 at 4:54 AM Post #361 of 602
Quote:

Originally Posted by bigshot
Was my explanation clear?


Yes, that explains why orchestral music sucks with headphones, soundstage is too narrow and almost fits inside my room (3 meter wide). Trance music has a huge soundstage (200 meters) and vocals are recorded with one microphone. It sounds more like real life than orchestral music.
 
Oct 3, 2006 at 5:09 AM Post #362 of 602
Quote:

Originally Posted by bigshot
If I remember correctly, an orchestra is capable of producing 100dB at full fortissimo. That's not quite the threshold of pain, but it sure isn't comfortable! Obviously, that's WAY too much for normal home listening.


If someone has blasted his ears at real life orchestra at 100dB volume and then comes home to compare cables at 70dB, would he hear a difference?
 
Oct 3, 2006 at 5:11 AM Post #363 of 602
Sennheiser has published two different specifications for the loudness level of the HD650 at 1V and there is 12dB difference. Twelve db is huge.
 
Oct 3, 2006 at 5:40 AM Post #364 of 602
Quote:

Originally Posted by Patrick82
Yes, that explains why orchestral music sucks with headphones, soundstage is too narrow and almost fits inside my room (3 meter wide).


The problem isn't the narrowness of the soundstage, it's the width between your ears.

See ya
Steve
 
Oct 3, 2006 at 5:46 AM Post #365 of 602
Quote:

Originally Posted by JohnFerrier
Anyway I've adjusted my listening level to stay within the guidelines for safe listening (which is weighted by duration and level).


Have you found anything about a difference between enclosed headphones and speakers in open air? I wonder if the range of safety is different when the ear cups are forming a seal around the ear, or perhaps directionality of sound pressure...

See ya
Steve
 
Oct 3, 2006 at 6:00 AM Post #366 of 602
Quote:

Originally Posted by bigshot
Have you found anything about a difference between enclosed headphones and speakers in open air? I wonder if the range of safety is different when the ear cups are forming a seal around the ear, or perhaps directionality of sound pressure...

See ya
Steve



The headphone manufactures probably have industry guidelines that define such things, but I'm not sure where to find a copy. AKG or Beyerdynamic references performance standards in some of their spec sheets. I can't find the reference number right now. I've wondered if the loudness specification changes if the sound source (transducers) is within an inch of one's ear. I don't know if that is why Sennheiser increased the rating by 12 dB. Avoid liability for hearing damage.
 
Oct 3, 2006 at 9:34 AM Post #367 of 602
Quote:

Originally Posted by Patrick82
Yes, that explains why orchestral music sucks with headphones, soundstage is too narrow and almost fits inside my room (3 meter wide). Trance music has a huge soundstage (200 meters) and vocals are recorded with one microphone. It sounds more like real life than orchestral music.


I don't agree with you on this one...especially electrostatic systems are really good for classical music and for detail retreval in that section!
 
Oct 3, 2006 at 9:46 AM Post #368 of 602
Quote:

Originally Posted by Patrick82
Yes, that explains why orchestral music sucks with headphones, soundstage is too narrow and almost fits inside my room (3 meter wide). Trance music has a huge soundstage (200 meters) and vocals are recorded with one microphone. It sounds more like real life than orchestral music.


I don't agree with you on this one...especially electrostatic systems are really good for classical music and for detail retreval in that section!
 
Oct 3, 2006 at 2:23 PM Post #369 of 602
Just thought I'd throw in a few items I've accumulated in my head over the years about the topic of the last dozen posts:

The decibel was defined as the unit of just noticeable difference on average among people ("jnd" to earlier researchers) in sound level based on some studies done many many years ago (don't recall the specifics). So it would be expected that some few people can hear even less as Patrick claims and some need a little more to hear the increment.

Speaker manufactures at least formerly often put in their manual the ratio of speaker separation to the distance from listener to midline between speakers they recommended (what Bigshot was describing). I have seen either 1:1 or 1:1.5 recommended.

120db is usually cited medically as the level definitely causing damage for any meaningul length of time. Pain starts in around 110db, obviously, then, lower for some people since these are average values. Symphony orchestras do get to 100db and could possibly get higher. I don't find full volume like this uncomfortable but thrilling, but we all know that a mix of pleasure and a bit of pain is usually what is most exciting.
 
Oct 3, 2006 at 5:13 PM Post #370 of 602
Quote:

Originally Posted by bigshot
I have great respect for the engineers at Bell Labs in the 20s and 30s. The more I read about their experiments, the more I realize how much has been ignored or forgotten.

See ya
Steve



I just found 30 pages of insight from Bell Labs circa 1934.
Symposium on Auditory Perspective

This is close to what I've been looking for, but I'm still searching.

-

From the preface: "In 1964, Paul Klipsch reprinted this paper. Here is his introduction – I cannot say it better: The following paper is a reprint of one of the most important papers in the field of audio. Fundamentals do not change. The laws of physics endure."


.
 
Oct 3, 2006 at 6:46 PM Post #371 of 602
Quote:

Originally Posted by JohnFerrier
I just found 30 pages of insight from Bell Labs circa 1934.
Symposium on Auditory Perspective



OOoooo! Oooo! that's my meat! Thanks for the link.

Steve
 
Oct 3, 2006 at 10:58 PM Post #372 of 602
Quote:

Originally Posted by bigshot
The problem isn't the narrowness of the soundstage, it's the width between your ears.

See ya
Steve



You haven't seen my BIG head.
580smile.gif
 
Oct 3, 2006 at 11:00 PM Post #373 of 602
Quote:

Originally Posted by bigshot
OOoooo! Oooo! that's my meat! Thanks for the link.

Steve



That paper is about perception of sound in a certain place and how to let everybody hear the same...
 
Oct 3, 2006 at 11:06 PM Post #374 of 602
Quote:

Originally Posted by tourmaline
Lol, back to the future.....papers of 1929...don't you think they can do more now?


Skeptics can't learn new information because they aren't open-minded enough. He has made thousands of posts telling about his old-school knowledge. It's like saying airplanes can't fly, it's all placebo.
 

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