Spennende innlegg, Coolio. Ja, jeg mener at kravet til "high-fidelity" er at det gjengir signalet så riktig som mulig i frekvens- og tids-domenet, med så lite forvrengning som mulig. Men et av argumentene for stort membranareal i bassen er nettopp at det skaper mindre forvrengning og gjengir dynamikk bedre - altså dreier det seg om troskap mot kilden. Utover det blir det straks mer subjektivt, også fordi selve hifi-illusjonen er en subjektiv ting som oppstår inne i hjernen til hver enkelt av oss.Takk for utfyllende svar! Spennende at du bekrefter mistanken min om at det er umulig for en høyttaler å gjengi virkeligheten og at den eneste relevante (reproduserbare) referansen er signalet fra kildematerialet. Bekrefter ikke dette teknisk sett det "alle vet", at utover riktig reproduksjon av frekvensrespons og tidsrespons og fravær av forvrengning er det opp til smak og behag å avgjøre om et anlegg er bra eller ei?
Alan Shaw fra Harbeth skrev det slik på forumet sitt for noen år siden, og jeg synes ikke det var så dumt:
Re: Why does Soundstage Depth and Width Change with Toe-in?
Really! You are both worrying far, far too much! Do what seems right to you. This question of 'what is best' cannot be answered scientifically because there are so many variables, including where the microphones were positioned, the shape of your outer ear etc. etc. etc.. I have already stated in my previous post here, stereo imaging is an illusion. It is entirely a construct inside your own brain. Your brain (somehow) builds a mental model by mapping the sound that you hear over your speakers via your two ears to those that you have previously experienced in real. All this exposure is knitted together into a sonic model that allows you to imagine in your head how performers were arranged in 3D space at the recording venue. But the person sitting next to you may have a radically different mental model. Wives, for example, frequently cannot understand or appreciate their husbands fascination with hi-fi - they are entirely happy with the kitchen radio. This is because they have a very different mental model of how music sounds.
Your brain creates a sonic database before birth and refines it throughout your life according to your sonic experiences, the concerts you have attended, the types of instruments you have heard, different acoustic environments etc.. If you have never been to a live concert, never heard a live instrument but only been exposed to sound via a cheap radio you would have a very different mental sound database to draw experience from. Conversely, if you are a professional musician living and working with your instrument, you may find it impossible to listen to hifi sound. Many professional musicians seem perfectly satisfied with very modest low-fi audio equipment at home.
Throw the grand theory out of the window - what is right for your brain, your room, your music, your taste is right. Go with what sound best to you.
P.S. I strongly recommend that you make an effort to go to live (classical) concerts where the instruments can be heard live, not via a PA speaker system.. Your concept of stereo imaging, depth, perspective etc. may well radically change after such exposure. For one thing, at a real live concert, you will find that 'pin-point imaging' and great depth does not exist. What you experience live is a wash of sound .....
P.P.S. The fact that different people have different exposure to live sound - and hence, a different internal sonic database in their brain to draw on - makes the business of hi-fi reviewing rather problematic. When we read a hi-fi review, there are so many unknowns for us, the reader, to contend with. Not only have we no exposure to the equipment under review we don't know about the reviewer's associated equipment, his room room, his musical taste or his previous exposure to live music (if any) and how sophisticated his mental sonic look-up table is. However, one thing we all do know about is speech since we are surrounded by live speech all our lives even if we have never seen or heard an instrument. That makes speech an excellent test material for evaluating loudspeakers.
Sist redigert: