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Author Topic: What did you do yesterday?  (Read 10830 times)

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Offline Arya Quinn

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Re: What did you do yesterday?
« Reply #240 on: September 07, 2014, 07:23:57 AM »
Didn't die  :dunno:

Offline odeon

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Re: What did you do yesterday?
« Reply #241 on: September 07, 2014, 11:36:52 PM »
Ran some 70mm film through the projector. Hooked up DTS digital sound.
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former."

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Offline Semicolon

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Re: What did you do yesterday?
« Reply #242 on: September 08, 2014, 04:24:26 AM »

  I didn't want that picture online.  My phone was hacked.  :-[

Don't store your noodz on iCloud next time. :hahaha:
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Offline odeon

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Re: What did you do yesterday?
« Reply #243 on: September 10, 2014, 11:11:40 PM »
Did a first room equalisation of the garage. Pretty damned cool.
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former."

- Albert Einstein

Offline odeon

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Re: What did you do yesterday?
« Reply #244 on: September 10, 2014, 11:12:26 PM »
Oh, and + for this. I lol'd.




  I didn't want that picture online.  My phone was hacked.  :-[
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former."

- Albert Einstein

Offline Jack

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Re: What did you do yesterday?
« Reply #245 on: September 11, 2014, 12:20:16 PM »
Did a first room equalisation of the garage. Pretty damned cool.
What's that?

Offline odeon

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Re: What did you do yesterday?
« Reply #246 on: September 13, 2014, 03:30:35 AM »
Did a first room equalisation of the garage. Pretty damned cool.
What's that?

Let's say you have a cinema auditorium with a Dolby Digital processor. You have three screen channels (left, centre, right), two surrounds (left and right surround) and a subwoofer. Something like this:



How these channels actually sound in the auditorium depends on things like the speakers, the power amplifiers feeding the speakers, the room's characteristics, and so on. In other words, it varies depending on lots of things, and unless something is done, no cinema will ever sound like another, which is not what the filmmakers spending millions on good sound mixes want.

This is true whether your auditorium is a 700-seat theatre or a 12-seat garage.

For this reason, Dolby cinema processors include equalisers for each and every channel. Each equaliser will have 1/3 octave controls from roughly 20 Hz to 16 kHz which means that by changing the frequency response for each individual band, you can compensate for the oddities in your particular setup and achieve the sound the filmmaker wanted.

This is done by placing a microphone connected to a real-time analyser (RTA for short) in the auditorium, running pink noise through each channel and then observing the resulting sound curve on the RTA screen. The curve most likely looks like a mess, initially, but can be corrected using the equalisers to something like this:



You will also attempt to change the subwoofer's response to something like this:



Your actual results will, of course, always be a compromise, but I'm sure you get the idea.

In my particular case, my left and right channels are brilliant, the surrounds OK and the sub decent, but the centre sucks, probably because the speaker itself is bad. I' going to replace it and see if I can do a better equalisation of that channel.

You did ask. :P
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former."

- Albert Einstein

Offline Parts

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Re: What did you do yesterday?
« Reply #247 on: September 13, 2014, 04:34:34 AM »
Very little
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Offline Jack

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Re: What did you do yesterday?
« Reply #248 on: September 13, 2014, 05:33:17 AM »
You did ask. :P
True. :laugh: The first image reminds me of the surround system in the living room, just not so many speakers. Think it's a bit silly and call it our mini Stonehenge. That irritates him.

Offline Pyraxis

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Re: What did you do yesterday?
« Reply #249 on: September 13, 2014, 12:37:02 PM »
You did ask. :P

Actually it was interesting.
You'll never self-actualize the subconscious canopy of stardust with that attitude.

Offline odeon

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Re: What did you do yesterday?
« Reply #250 on: September 15, 2014, 11:17:05 PM »
You did ask. :P
True. :laugh: The first image reminds me of the surround system in the living room, just not so many speakers. Think it's a bit silly and call it our mini Stonehenge. That irritates him.

I should plus you for the mini Stonehenge. :laugh:

A surround system in a living room actually has the same basic setup as a modern cinema, the difference being that most people won't need two or more subwoofers or 12 surround speakers.

I've seen setups with four or six stacked subwoofers and 24 surround speakers.
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former."

- Albert Einstein

Offline lutra

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Re: What did you do yesterday?
« Reply #251 on: September 20, 2014, 03:17:06 AM »
Yestereve I watched 'O Brother, Where Art Thou?' (on the telly) and at times laughed that much I got tears in my eyes. Brilliant movie, in my opinion. 
Solum certum nihil esse certi et homine nihil miserius aut superbius.

Offline odeon

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Re: What did you do yesterday?
« Reply #252 on: October 09, 2014, 11:17:22 PM »
Worked (from home). Fed the family. Watched House.
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former."

- Albert Einstein

Offline renaeden

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Re: What did you do yesterday?
« Reply #253 on: October 10, 2014, 04:49:41 AM »
Slept in and didn't go on the morning walk. Then had to get up, get my assignment ready (printed out and stapled) and travel to Rockingham uni to hand it in. I was there for about 5 minutes. Then went out for a drink (non-alcoholic) with my LAC and talked for about an hour.

Feeling much better now that I have handed in my assignment as it's the last one for this semester.
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Offline Pyraxis

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Re: What did you do yesterday?
« Reply #254 on: October 10, 2014, 07:03:35 AM »
What's a LAC?
You'll never self-actualize the subconscious canopy of stardust with that attitude.