[Frameworks] Optical Sound - filter

[Jared Hutchinson]

Hi Jason,
I just found this message in my spam folder!
Thank you so much for this! Exactly everything I needed.
Hope all is well,
Jared


On Fri, Apr 25, 2014 at 3:45 PM, Jason Halprin <jihalprin at yahoo.com> wrote:

> Basically, an Academy pre-empahsis filter would just be applying an EQ
> setting to your sound file so that it would be designed to work in
> conjunction with a theater's standard EQ'ing.
>
> There was a standard "Academy Curve" that was utilized to try and create a
> standard for mono, and it was replaced with the use of an ISO X-Curve for
> stereo, which also had variances in the formula based on room size. Each of
> these rolls off the high and low ends of the spectrum, effectively
> accounting for the longer reverb of bass, and the hiss inherent in an
> optical soundtrack.
>
> All of this is to say that it doesn't need to be expensive, and you could
> effectively copy the older Academy Curve for your mono soundtrack through
> the use of EQ that mimics its shape. Now, as for how good your file would
> sound once it becomes an optical soundtrack is a little more of an art than
> just applying a pre-set, but if there's not a wealth of subtlety in the
> shape of your sounds, or a lot of high end (over 4K) or low end (under
> 100hz), you should get acceptable results.
>
> See here for a little history and explanation: THE X CURVE & Double-Head
> Screenings | Music of Sound
>  [image: image]
>  THE X CURVE & Double-Head Screenings |...
> The name sounds like some magic preset, and in a way it is, but I’m not
> sure if magic is quite the right description.
> View on www.musicofsound.c...
>  Preview by Yahoo
>
>
>
> -Jason Halprin
>
>   On Friday, April 25, 2014 3:27 PM, Roger Wilson <
> rogerdwilson at sympatico.ca> wrote:
>  Hi again Jared,
>
> Have a look at this link, it talks about prepping audio for 16mm mono
> track and creating optical tracks.
>
> http://www.sfu.ca/~gotfrit/ZAP_Sept.3_99/f/fsnd_lect_16mm_mix.html
>
>
>
>
>
> Roger D. Wilson
> Film Scientist
> 613 324 - 7504
> rogerdwilson at sympatico.ca
> http://www.rogerdwilson.ca
>
> Without failure you can never achieve success. I have based my process and
> my career as an experimental film artist on this statement; and I welcome
> it as it pushes me forward as an artist to try something different,
> something new.
>
>
> ------------------------------
> From: jaredphutchinson at gmail.com
> Date: Fri, 25 Apr 2014 14:35:21 -0500
> To: frameworks at jonasmekasfilms.com
> Subject: [Frameworks] Optical Sound - filter
>
> Hello, all,
> I am almost ready to send out for an optical track for my first sync-sound
> print.
> I gave a call to the lab which photographs for optical tracks and I was
> told that my sound needed to be treated with an academy pre-emphasis
> filter. I was wondering if this (possibly expensive?) stage is necessary
> for my film sound. The soundtrack to my short is pretty primitive-sounding
> and not reliant on great fidelity.
> Thanks!
> Jared
>
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