Kees
Headphoneus Supremus
- Joined
- Feb 18, 2006
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Quote:
What we call "sound" is actually allways our perception of it. We actually think backwards when interpreting sound. We perceive something (as an activity in our auditory brain area) and start looking for the cause: "where does this sound come from?" Because our experience tells us that it usually means something is causing it. Interpreting back: what could it be? What is it that caused this? is what we are good at (survival mechanism since the dawn of mankind).
Our brains are very good at building a convincing, life-like representation (interpretation) of the cause of the sounds we hear.
But remember: our brains make it up, using the clues it gets (in the form of stimuli, vibrations in the air, we call sound)
What we are discussing here when we talk about measuring sound quality is the quality of the stimulus (audio signal, electrical signal, vibrating driver). And how well it matches the original stimulus (symphony orchestra).
While when we talk about listening to music (via our audio equipment) we talk about how well our brains make up the picture (representation) of the original source.
We don't know a lot about the connection (mapping) of the audio signal with the "making up the representation of the source" - mechanism of our brain. We know the latter can even work without an actual signal.
And there our brain introduces a lot of things we cannot measure in the signal.
Originally Posted by upstateguy /img/forum/go_quote.gif Is the something I'm trying to identify a sound? We're not talking about the perception of this sound, just what it is. So, this thing that your heard is a sound? USG |
What we call "sound" is actually allways our perception of it. We actually think backwards when interpreting sound. We perceive something (as an activity in our auditory brain area) and start looking for the cause: "where does this sound come from?" Because our experience tells us that it usually means something is causing it. Interpreting back: what could it be? What is it that caused this? is what we are good at (survival mechanism since the dawn of mankind).
Our brains are very good at building a convincing, life-like representation (interpretation) of the cause of the sounds we hear.
But remember: our brains make it up, using the clues it gets (in the form of stimuli, vibrations in the air, we call sound)
What we are discussing here when we talk about measuring sound quality is the quality of the stimulus (audio signal, electrical signal, vibrating driver). And how well it matches the original stimulus (symphony orchestra).
While when we talk about listening to music (via our audio equipment) we talk about how well our brains make up the picture (representation) of the original source.
We don't know a lot about the connection (mapping) of the audio signal with the "making up the representation of the source" - mechanism of our brain. We know the latter can even work without an actual signal.
And there our brain introduces a lot of things we cannot measure in the signal.