Miracle #03 16 июля 1999

Железо

Myself - General Sound Filter: story of the new gadgets to the GS.

    (C) LD / X-Trade

    --------------



    We are happy to inform all, a takzhe
schastlivym obladatelyam muzykalnoy karty
GENERAL SOUND, we prodolzhaem nashi
oblasti issledovaniya in digital zvuka.
Ha nami basis of objective,
a subjective takzhe psihoakusticheskih
issledovany nami razrabotan vesma
pribambas useful to GS.


    Danny pribambas (which is not poka
has nazvaniya) predstavlyaet an Active Stereo LPF Chebysheva 8 
th poryadka with amplitudno-chastotnoy harakteristikoy, 
harakternoy for filters with Q 0.707.



    Psihoakusticheskie criteria bazirovalis nA subjective 
assessment of comfort zvuchaniya, a takzhe fatigue during 
prolonged proslushivanii modules and sound games. 


    Objective criteria osnovyvalis nA
summing statistiki, kasatelno chastoty with which most 
otsifrovano samples (min - 8 kHz, max - 24kgts).



    In rezultate issledovany was
noted that out-za interpolation in the GS
range of digital noise is not "slipaetsya" with
spectrum efficiency and therefore signala
can be effectively otfiltrovan.
(Haprimer, nA Amige spectra signala and
interference nahodyatsya next, so filtratsiya without 
significant loss vch.-prevalent made nevozmozhna. The 
experiment is fully confirmed). In rezultate byla opredelena 
optimalnaya chastota sreza filtra about 10 kHz.



    A Now that specifically
feel vashi ears. And tak, dostatochno
clean sound GS is now completely free
from digital skrezheta and hiss,
due, rather, not nedostatkom
algoritma interpolation, a nedostatochnym
kachestvom otsifrovannyh samples. Since the spectrum of 
overtones is in vysokochastotnoy oblasti sound signala and 
dazhe za predelami hearing, it vyzyvaet

discomfort when proslushivanii. In
rezultate - discomfort, plavno
peretekayuschy a headache, etc.
Now zvuchanie modules will be
free from takih nedostatkov. At the same time
in music vsplyvaet nemaloe number
muzykalnyh moments ranee kazavshihsya
small, essentially uvelichivaetsya tembralnaya razreshayuschaya 
ability naturalnee played samples with a complex timbre 
(akkordy, the effects of etc.)



    Vysheukazanny pribambas be structurally designed as a small
platy, ustanavlivayuscheysya nA output
Audio razem. The sound will now be
snimatsya this malenkoy platy. Ha
programmnuyu compatibility of this pribambas
influence, of course, will not. Predpolagaemaya cost pribambasa 
nevysoka - about 4 dollara. Hadeemsya release

pribambas to the New Year in kraynem
a case of the end yanvarya.


    Pribambas, navernoe, and will tak
nazyvatsya - filter for "GS".

P.S. After a tyuninga GS can be
quite confident skazat that za money that can be put 
spektrumisty, from the sound formata 8bit/8..24kgts in

form in which it exists, vyzhato
everything possible.


            Good luck.



                                Dmitry.