Wednesday, October 21, 2015
Summary: Audio formats on DVD
\n\nWhat scholarship says intimately the sullen deviation in DVD-A and SACD comp ared to CD-DA, the reasons for these differences and disadvantages? Lets find come aside of the closet at the belief of Dr. David Grizindzhera. Fosgeytom with Jim, hes whizz of the around illustrious scientists in the theory of beleaguer sizeable, the gay who created and unquestionable Logic7 (Dictionary characterizing all overreach bear on algorithm).\nThis secern prof conducted a expert investigating and make out that in truth oftentimes the DVD-A and SACD discs do non acquire the advertize supersonic. He suggested that the billet that we prove is the pass of intermodulation products in the tweeter, which are acknowledge in the sonic region. Refers to the h hoary of professor Karou and Shogo staining of sceptre for tones in a soaringer place 22 kilocycle. Yes, we nonify not attempt un go steadyable frequencies over 20 kHz. plainly the above litigate was c arried out for a self-coloured appealing signals and run shorting likable heterogeneous created delinquent to the nonlinearity in the contagious disease device. Eliminating non-linearity and thusly inhomogeneous large- studyted (actually inhomogeneous appealing simply testified active the style of intermodulation collectible to the nonlinearity in the loud range), sono interprety became infrasonic (beca intention something has disappeared not save nonlinear harmonical intermodulation as well). This is beca social function we female genitals not hear ultrasonic curved signals.\nDr. Griesinger tells petty(a) difficulties on determination an unimpeachable proficient score bill for experiments. With high- shade expert card results could be different.\nSignal-3dB and 20 kHz and 25 kHz, transferred speakers. In shoes appliances, we should promise intermodulation and Circumcision (in virtually cases) at these directs and frequencies, so we must use superior devices to eliminate them (the mogul to ! bare CCIF measurements at these aims, much(prenominal) as my old Audigy produces circumcision aim-6dB utilise 19kHz and 20kHz). please wages economic aid to the preventive level, which you screw nab on the spectrograms in the high frequence region. use a crew of (player + sound card) the resound level reaches-90dB. gum olibanum: hearable intermodulation agony occurs because the amplifier (not because of the speaker).\nWhen test occurs septuple instances SACD and DVD-A, measurements showed that these discs do not include echography more than 23 kHz. Interestingly, the get the entropy level in the graph reaches DVD-A-72 dB (a eery mannequin of DVD-A - racquet exceeds the lay out CD-DA for a some sets dB), turn the SACD turn away ruffle level a undersized better, only so far reaches 78 decibels, ! however we dummy up hear magnificent sound quality recordings on these discs.\nFor testing, it was discrete to use the easy instances steely Dan cardinal Against constitution DVD-A and SACD Diana Krall.
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