Haas zona, reverberacija, decay u kontrolnim sobama

[NLP]

Oko toga vidim, da se kažu nejasnosti pa da vam malo približim poantu
Pa i ja sam tome kriv.

Najprije bih preporučio, da proučite ove linkove:
- http://www.rumski.com/forum/showthre...ight=haas+zona
- http://www.rumski.com/forum/showthread.php?t=25439

!Ispričavam se jer sam u threadu "Akustika Threadovi po redu - dema0206" napravio strašnu grešku te u postu 32 i 34 naveo pogrešan podatak, da je Haasova zona jednako kao RT60!!!
Lapsus!
Ispričavam se!
Dema me je u postu 33 popravio (i još nekoliko puta me skušao opozoriti i u drugim threadovima)!
Hvala Dema!
Mislim da ne smijem više pisati usred noči i avtomatizacijski...
Ako pomaže kao isprika imao sam težu operaciju pa tablete...

Da se izkupim evo jednog dobrog linka:
http://www.rpginc.com/news/seminars/...2007_iRoom.pdf
Osobito stranice 25 i 27 (pai druge su odlične).
Bit če vam mnogo jasnije jer ima i slikovnog materijala, te brza historija razvoja studijskog akustičnog dizajna. I veoma na kratko i jedrnato!
Htio sam da uploudujem sa svog računala originalan pdf. iz 2006 godine, pa nije išlo, prevelik, ovaj pdf. ima neke crte sa strane namijenjene za zapiske, pa su sličice manje pa morate zumirati.

"All reflections arriving at the observer’s ear within 20 to 40 msec of
the direct sound are integrated, or fused together, with a resulting apparent
increase in level and a pleasant change of character. This is the Haas effect."
"
"Haas found that in the 5 to 35 msec delay
range the sound from the delayed loudspeaker has to be increased
more than 10 dB over the direct before it sounded like an echo. This
is the precedence effect, or Haas effect. In a room, reflected energy
arriving at the ear within 35 msec is integrated with the direct sound
and is perceived as part of the direct sound as opposed to reverberant
sound. These early reflections increase the loudness of the
sound, and as Haas said, result in “...a pleasant modification of the
sound impression in the sense of broadening of the primary sound
source while the echo source is not perceived acoustically.”
The transition zone between the integrating effect for delays less
than 35 msec and the perception of delayed sound as discrete echo is
gradual, and therefore, somewhat indefinite. Some peg the dividing
line at a convenient 1⁄16 second (62 msec), some at 80 msec, and some at
100 msec beyond which there is no question about the discreteness of
the echo."

1.deo