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In Reply to: RE: Low Level System Performance posted by morricab on June 23, 2015 at 02:58:06
"I never said the signal isn't there, ..."
Yes, you did. You wrote:
"...subtle sounds will simply drop out because the system cannot generate such small responses. "
You're mincing words. "Drop out" and "isn't there" both mean it isn't there, and isn't that what you're saying?
First, you were talking about "the system", which you later modified to "the speakers". There's a difference.
This makes me wonder about all those reports and reviews of systems (er, loudspeakers, er, amplifieers, er, preamps, er, sources, er, interconnects, er...) where the writer talks about it reproducing the most subtle nuances and details of the recording, and having such wonderful "air". You know exactly what I'm talking about. They must have been playing the system at "concert level" (or louder?).
I've already asked you for data. I'll ask again.
If your assertion is correct and you have empirical evidence, cite a reference or two (preferably three), or point me to where I can find it. Anecdotal "evidence" doesn't count.
In any case, there are at least two factors which make the "problem" moot:
1. At "low" (define that) listening levels, subtle detail is lost in the room's ambient noise.
2. You still haven't provided evidence.
Let's not forget that audio level compression and limiting has been around since darn near forever. This is not news. The problem of low level playback compensation was addressed many decades ago, by many companies. Probably not to your liking or approval. Google "Gain Brain" and "Kepex" and "LA-4".
:)
Follow Ups:
By "system" I meant loudspeakers in that particular case but it can also apply for electronics but in their case it is more that the signal is dropping below either a true noise floor or a signal modulated one.
"drop out" and "isn't there" don't really mean the same thing. Drop out means something that is there but below the capability of the system to produce the sound. Isn't there means its somehow missing from the music content and that is not what I am saying.
"First, you were talking about "the system", which you later modified to "the speakers". There's a difference"
I agree, the confusion is first I was mainly referring to speakers but it can also apply to electronics although the reasons why are completely different between the two. I ended up sort of mixing the two together (in my mind they both impact the low level resolution and dynamics though).
"They must have been playing the system at "concert level" (or louder?)."
Often the case and many of my audiophile friends listen a lot louder than me.
"I've already asked you for data. I'll ask again.
If your assertion is correct and you have empirical evidence, cite a reference or two (preferably three), or point me to where I can find it. Anecdotal "evidence" doesn't count."
I'm sorry, what exactly am I supposed to be proving to you? Not that I am in any way obligated to do so since you have a keyboard and google as well.
Those compressors and booster are to compensate (inadequately because they are not level dependent) for the drop out that I speak. It is not just the hearing that is changing but the speakers and amp capabilities as well.
There is a good reason why a horn or electrostatic speakers continue to sound lively, detailed and with good ambient retrieval at far lower average listening levels than a conventional, low sensitivity speaker. This alone gives a clear indication that some speakers "drop out" low level sounds earlier than others. You can further easily hear the influence of the electronics on this with a given speaker. I am giving you firsthand experiment observations but I am surely not alone in this. Electrostats give a great insight into the effect of electronics on the whole low level resolution issue. Horns as well but some of them have colorations and resonances that mask information too.
"I'm sorry, what exactly am I supposed to be proving"
You are kindly asked to provide data/references which support your assertions.
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