Re: OT Adjusting Home cinema - equalizer

["librashagger" <jerome@xxxxxxx>]

--- In ukha_d@y..., "Nikola Kasic" <nikola@k...> wrote:
> I played yesterday with Sound Pressure Level meter and Test 
DVD (Ultimate
> DVD Platinum) and it just confirmed what I knew that my 
system is not
> reproducing signal in mid ranges so I need to increase it with 
built in

The only way to properly do this is with a spectrum analyser, pink 
noise and a flat response microphone.   Your SPL meter will 
quite possibly be inaccurate if you're listening to different 
frequencies of tone seperately.  We have our dubbing theatres 
lined up by Dolby every now & then, and though a Tandy SPL 
meter is fine for quick level measurements (with pink noise), a 
proper spectrum analyser is needed, with a microphone with a 
very flat response, to adjust the eq.

Is  there pink noise on the test DVD? Perhaps a PC spectrum 
analyser prog could be found too.  Dolby obviously use veh veh 
expensive flash analysis equipment for this task.

Jerome




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