Stunning that you are here. Thanx again FilmMixer and the rest
"There is a target for the home. Flat frequency response, SPL 75db on all channels."
75 dB is not a standard. 85 dB is. 85 dB is in use when you EQ x-curve, flat response. THX Home EQ is also 85 dB. Where did you get that 75 dB from, RadioSchack?
"It’s been my experience that many theaters do at least tune their rooms, but unfortunately a good majority don’t play back at reference level, and often times their amps (and subs) are not up to the task."
This is correct when I was speaking about our fully custom made cinemas vs. Dolby sub spec 40 Hz response. In this fully custom made they go pipe straight to 20 Hz without a single problem. Acoustic is done differently, as I said etc. This do not use any JBL, Klipch, EAW, or limited Dolby specification etc. IMAX speakers are by the way using 5$ worth "car bass-drivers" and a silly room correction. And China owners of almost all of your multiplexes started a few years back with a goal anything should cost nothing. This is the reason some are not up to task.
"...The gold standard for the way a mix should sound is on the mixing stage where it was mixed and printmastered. When played back in a room set to the proper SPL reference and with the proper tuning, it should translate..."
Are this rooms with +-10-15 dB freq. response?
"Perfection can’t be the goal. Acoustic science and reproduction technologies get us in the ball park where “good enough” is untouchable in its deficiencies by 99%+ of untrained listeners."
Did you mean the end user who bought the soundbar for his TV?
" The “target” is to compensate for the differences between a cinema and hone environment."
You should have said it this way, -either you preserve or not preserve the original sound design. Which one is it?
Or are you mixing for certain type of equipment at home which are in use in 99% of homes meaning soundbars, headphones and mobile when you refer to calibration and levels. This equipment do not have proper levels and calibration.
You forgot to say that You, Me and We have the same near-field when it comes to full range speakers.
You do not use this same 1 meter in diameter Horn in that near-field so you should not have any problems with that overly bright x-curve high.
"It’s rare that our temporary near field systems are calibrated EQ wise... we almost always mix in the room where the film was done and have instant access to the cinema print master to compare."
I believe that the movie studios budget is already used to the end in the production that there is nothing left for this NEW Atmos/DTSX Remastering to achieve a Real Remaster.
I believe that they are mixing this Remasters in a Atmos/DTSX room space where they are using Room-Correction and that is translating into the blu-disc. DTS own is using Dirac
It was proven that this type of Cinema dubbing stages with near-field system in the same room might have a freq. curve of +-10-15 dB. How on earth can you translate a flat freq. curve for home according to this environments. I would not EQ anything and I would not translate anything from this to blu-ray disc.
This +-10-15 dB is with Meyer Acheron and I believe your JBL 708 would have the same issue in that same space.
"Thankfully we now have access to the JBL 708s and they are very very close subjectively to most large JBL cinema systems."
JBL Cinema speakers has nothing in common with good sound or the custom built speakers for custom built cinemas. I suppose you do not have custom cinemas in US, music studios you have.
Worst thing is to duplicate a bad speaker to a other. If you are married with JBL take instead the M2.
Did you ask from JBL the CLF file of 708 and M2 to compare?
"You aren’t a cinema playing back cinema content.... "
We want to play back the original sound design.
"In general we mix at reduced SPL levels vs listening at 85 reference in a mixing stage. Why? 1. 99% of consumers don’t listen at reference or even close to it...."
In this case do not change the original standard. Implement the original sound design in the blu-disc...Who is it this 99% you refer to?
"...I haven’t seen many home theaters that approach the size of even the smallest of cinema mixing stages I’ve worked on that have full sized 2 or 3 way cinema speaker systems..."
You do not need a Horn loaded full range speaker to successfully playback a cinema mix. You can playback a theatrical track with full range studio monitors in near-field with no problem putting the volume level down if it is too loud for somebody.
"3. No x-curve. Since we have to mix through a system with an x-curve, cinema content played back on near fields at 85db reference can be excessively bright. Listening at a reduced SPL helps compensate for that... Fletcher Munson curve anyone?"
X-curve is miss understood in some partys. That X-Curve in far field behind the screen should be totally flat measured from 1 meter distance! But to have it the monitor need to have it own freq. response flat and this proper x-curve roll of comes automatically the further you place the speakers!
So the most accurate X-curve is achieved to make this monitors freq. response total flat +-0,5 dB measured from 1 meter distance and then move this speakers to far field behind the screen and let the room do the rest. But of course you need the woven screen and proper acoustic treatment for that.
Did you read this Fletcher https://www.bringtheruff.com/referen...-home-theater/
...It is 85 dB!
"4. Surround speakers a now point source vs arrays... and also are 3db louder than cinemas."
Where has this come from that they are louder?
"So to get a sound that is “perceptually” similar to my theatrical playback I mix my near fields at 80 db... some do it at 82, others down to 75... when I work with Brian Vessa I mix at 80 and playback for him at the level he wants, be it 75 or something else."
Is it because of this I mostly need to increase my volume level inside the same movie by +8 dB to achieve the background noise and the dialog in balance?
I am trying to figure it out what have you done to force me to do it.
"It’s almost always raising dialog or background sounds that fall off when play back lower."
This happens also for me if I diminish the volume level back by this 8 dB the dialog and background effects are too weak. To get them back I have to increase the volume level by 8 dB.
"The comment from another poster is incorrect. Cinema mixes vary drastically in level... to say otherwise is not based on experience."
It was me. This is it how it is locally here in our totally custom made multiplexes (4-6 / 220-230 titles). It was not a made up thing. But you kindly skip that section when I said that the level differences are in ALL the blu-disc titles!
"The films I’ve done for Judd Apatow are vastly different than those I have done for Michael Bay..."
The case is not that. The case is what is it when translating them to the home?
"I only speak for myself and my almost 30 years experience."
I am 51 and started when I was 15