Subtitling Rules of Thumb

Hi,
I'm trying to create some templates for doing subtitles on clips in the future. In determining how long the templates should be, from what I have viewed, it takes about 3 seconds to read 8 words. Are there any general rules of thumb?
Thanks

a rule of thumb often used in news is 3 words (spoken) = 1 second.
this is for timing pre edited video to a news readers live voice over ... obviously not directly applicable to subtitling, but somewhere to start.
cheers
Andy

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Rules of thumb for sizing an Oracle BPM 11g deployment

Anyone out there have some rules of thumb they are using to size out an environment for Oracle BPM 11g? I know processing power can vary widely for process complexity and amount of data floating around. Still, I get asked questions like how much processing power do I need for this solution? I have a current client looking at 2500+ potential human workflow users with 1000 concurrent at peak load. Short of running some performance test myself and extrapolating numbers I am at a loss. Hoping some others can chime in with some thoughts.

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Rule of thumb for CACHE_SIZE

Hi all,
I do have a system outsourced, where the DB (MAXDB 7.6.05) runs on a single SLES 10 server.
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Christian

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Best book, website, or training for Illustrator 'rules of thumb'

Hey everyone,
To give some background I am terrible at art (no eye for it). Though I have recently been trying to learn Illustrator with a book and some online training videos (lynda). I am grasping some basics concepts on 'How to use the program' and what everything does.
Though since I never took any graphic design course (I'm an engineer) I don't know what types of rules of thumb there are for making basic figures or pictures. What font is best? What type of arrows should I use? Width of stroke? Those are just basic examples of the type of questions I am always asking. So how do I take my basic knowledge of the actual program, and learn how to use those correctly?
I'm an engineer making fairly basic diagrams or drawings for my research, but a slick drawing can really make you stand out. So that is where I'm coming from, I'm also a total begineer so please keep that in mind, I'm looking for more basic advice at the moment. For example below is one of the first drawings I have made in illustrator. Scientific work doesn't need to be too flashy, but any sources/locations would be great.
Thank you so much in advance for helping a terrible artist!

Hi there,
There are a multitude of things you can do to foster your artistic intuition.
1) Google. If you do a quick search for the "principles of design" you should come up with explanations and examples of just that. Here are a few links I came up with:
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Erica

Determine indexes by rule of thumb - no data or table structures

Hi,
Im doing some research (would really like to see peoples answers)
could some one give me an idea of the best way to index a tables the tables that appear in the statement below, to optimise performance.
select p.fname, p.sname ,p.personid,av.availid, av.adate, nwa.hospitalid,
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Much appriciated

what about if the query were like so:
select p.fname, p.sname ,p.personid,av.availid, av.adate, nwa.hospitalid,
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from tblperson p
left outer join tblavailability av on p.personid = av.personid
left outer join tblnurseworkarea nwa on p.personid = nwa.personid
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Rule of Thumb in using Infinitely Thin conductor in EM simulation?

Does anyone know when is it safe to use approximately thin conductor during EM simulation in Axiem?
How about the ratio of the dielectric thickness to the copper thickness?
Solved!
Go to Solution.

For conductor loss, both thin and thick metal will work pretty much the same. The most obvious place where thickness matters is with coupling between metal on the same layer. The penalty you pay for metal thickness is that AXIEM must solve for more unknowns, somewhere between 2 and 3x the amount.
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A couple other points.
1. Check the option for using edge meshing when using thick metal. For the most accurate answer and a good comparison, you will want to make sure you are edge meshing the thick metal.
2. I have not seen the ratio of dielectric thickness to copper thickness matter much, but you could run a similar experiment, just seeing if it matters.   The biggest issue here is making sure you get the distance between your ground plane and the trace right. If you are using the boundary of the structure for the ground, this usually isn't a problem. But if you have ground planes at other locations in your stackup, you will need to adjust dielectric thicknesses depending on if you are using thin or thick metal to make sure the thickness of the dielectric is correct.

Module conflict rules of thumb?

I was wondering how to go about detecting module conflicts. It seems that most of my encounters with such events were solved through finding stand-alone answers to the particular module in question.
Each time I, being somewhat of a linux kernel newbie, had no idea how the people answering the questions found out that module X was conflicting with module Y.
Any set rules of thumb to go about detecting these conflicts?
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an update... my rule of thumb for 50 users has proven to be a bit high. Looks to be 30-40 per core when you split out the BPMN engine from other computing intensive processes such as the ESB. Without splitting up overall SOA/BPM functionality over multiple servers concurrent user counts of various technology really takes a hit.

Jaggy text rules of thumb

I'm wondering if there are some general rules of thumb about avoiding jaggy text in Motion. Most of the projects I've done have text moving around or using special effects, so the jaggys haven't been that noticeable.
However, now I'm working on a project with just white text against a black background, so the jaggys really stand out. I've tried various fonts, sizes, etc. but can't get smooth, crisp lines. I've read through several threads in this forum, but can't find anything that gives some general rules to follow.
I'm working in a standard NTSC DV format . . . 724 x 480.
Thanks!

Thanks for the link, Mark. Andy, your input is helpful also.
I only do this as a hobby for friends and family, so I don't have any technical specs I have to meet, but I do want my work to look as best as possible.
The setup in my home/office has changed, and I forgot about using a tv as a monitor of what my work will look like on tv . . .I'll get that set up ASAP. I am trying to stay with simple sans serif fonts to reduce the jaggys.
You've both mentioned that NTSC DV is a terrible format . . .understood. All of my footage is still shot on a mini DV camera, so I've just stayed with that format. Should I use a different format once I have my video loaded or will that make the video look worse? I usually incorporate filters and other effects, so maybe that would hide problems with changing the DV to a different format. (I'm really out of my league with that guess.)
In the meantime, I'm seeing jaggys in Motion itself . . .not even getting to FC yet. Maybe all of this is related to the NTSC DV format.
Mark, I had to laugh when I read your disclosure comment. The fact is that I probably owe you a lot of money 'cause I watch your MacBreak podcasts frequently. Speaking of which, I just opened one of those podcasts for the fun of it and noticed that that "MacBreak" logo and other text are jaggy. Maybe that's because of the compressed format that has to be used for videos like this.
I have your "Motion 3 Fast Forward" DVD. Maybe I need to crack that open again to refresh my memory.
Thanks!

Rules of Thumb

Are there any resources on LAN "Rules of Thumb" i.e maximum number of hosts on a 100 M-bps Switched network broadcast domain is XXXX. Maximum sustained CPU on a Layer 3e switch should no exceed XX%. I assume there is nothing hard and fast, just guestimates and expeariance

I'm going to throw in my 10 cents. I have alot of Education clients. Some all Apple some all Microsoft and some mixed. All of them started flat with between 380 to 2500 users on the same flat address space (same broadcast domain). Honestly I don't even know how some of them were functioning. As we reconfigured these sites to routed VLANs we stuck our VLANs to Class C networks. We use Address 1-10 as reserved and unused. 11-40 for Printers (if no Printer VLAN is used) and static devices such as scanners. 41-240 as DHCP for clients and 241-254 as reserved space. With that said at most sites we have set a VLAN per 48 port switch which limits the VLAN to no more than 192 users (we have set MAC limits on all ports to 4 due to heavy usage of unmanaged user switches for port expansion) In a 100M Enviro with 1G uplinks and 1G server connections this setup has worked very well. As part of this we have eliminated all non-IP protocols with the exception of HVAC controllers that tend to use BACNET and are super chatty. As for PROC utilization thats a toss up. I'm with the other guys who responded. Keep it low. If you are slamming you switches then there is going to be a performace hit. However I see alot of older 3500XL and 3550 L3 switches that with a properly configured and designed network don't even breath heavy under pretty solid loads that include file shares, printing, Multicast A/V streaming and HVAC system calls.
Hope this helps.
www.staticnat.com

Question regarding the rule of thumb regarding Exchange proc cores ratio to GC proc cores

Hi all,
I am studying towards my MSCE Messaging for Exchange 2013 and came across on CBT nuggets a statement regarding a rule of thumb when it comes to processor cores on Exchange 2013 server to GC
so Greg Shields from CBT nuggets says that the ratio should be
4:1 on x86 domain controllers
8:1 on x64 domain controllers.
So is he talking about 1 mailbox server role with 8 processor cores to 1 processor core on a x64 domain controller? what if there is already a heap of servers using that GC? In our datacentre we have 2 x64 domain controllers but also a whole range of servers
on that server network.
Also what if you have 2 mailbox server roles? are we then talking 16 : 2 ?
Hope someone can help clarify this.
Regards
ronnie.jorgensen systems engineer
My blog

Does this help explain it better?
http://blogs.technet.com/b/exchange/archive/2013/05/06/ask-the-perf-guy-sizing-exchange-2013-deployments.aspx
Active Directory sizing remains the same as it was for Exchange 2010. As we gain more experience with production deployments we may adjust this in the future. For Exchange 2013, we recommend deploying a ratio of 1 Active Directory global catalog processor
core for every 8 Mailbox role processor cores handling active load, assuming 64-bit global catalog servers:
If we revisit our example scenario, we can easily calculate the required number of GC cores required.
Assuming that my Active Directory GCs are also deployed on the same server hardware configuration as my CAS & Mailbox role servers in the example scenario with 12 processor cores, then my GC server count would be:
In order to sustain double failures, we would need to add 2 more GCs to this calculation, which would take us to 7 GC servers for the deployment.
As a best practice, we recommend sizing memory on the global catalog servers such that the entire NTDS.DIT database file can be contained in RAM. This will provide optimal query performance and a much better end-user experience for Exchange workloads.
and of course use the latest calculator version to determine your required specs:
http://blogs.technet.com/b/exchange/archive/2013/05/14/released-exchange-2013-server-role-requirements-calculator.aspx
When you calculate required GC cores, the ratio 1:8 applies to the cores required to support active mailboxes ("Mailbox role processor cores handling active load") and not to all cores physically available on Exchange server.
So, for example, if you have 32 total cores on an Exchange server but only 16 of them are actually needed to support active mailboxes (as determined by the calculator), you will need only 16/8=2 GC cores to support this Exchange server's AD queries.
Twitter!: Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

CSS Rule of thumb

Hi there.
I just want to know from you guys:
Is there a rule of thumb for what normally is declared here:
#content {
and what is declared here:
#content p {
Thank you very much.
Regards,
Deon

I'll kick off on this one.
I don't think so.
I reckon it's about what you are doing and how you want to go about building your site.
The rule of thumb really is that the more general a CSS style is the less specific your rule needs to be.
You can for instance declare your font-family in a rule for your <body> element and that will affect all your <p> elements if they are otherwise unstyled.
But if you only want to style <p> elements that are children of <div id="content"> then you would use a rule on #content p
I think you might like to do a bit of research on CSS Specificity and CSS Inheritance. That might help.
I also think that the more CSS you do the more that you will develop your own rules of thumb.
Martin

Soft/Weak References: rule of thumbs?

After reading <a target="extern" href="http://java.sun.com/developer/technicalArticles/ALT/RefObj/index.html">Reference Objects and Garbage Collection</a> i browsed my code and replaced my listener containers with versions that store WeakReference objects. The main idea is to avoid memory leaks by storing references to objects that are not needed anymore (the listener container is the only strong reference left).
Another rule is to use SoftReferences for caches. But I haven't figured out a good way of implementing it (for caches that fill itself with one single SQL statement).
Are there any other examples where it's good advice to use Soft/Weak References?

For listeners, you have to make sure that the listener object is hard referenced - which is usually the case. After you release the listener object from the main application/object/thread, because it's finished or you don't need it anymore, the listener holder should not hold on to such references to avoid OutOfMemoryExceptions. Of course, the best way is always to unregister a listener, but unfortunately, we're not living in a perfect world. No listener is forced to unregister, they can simple forget to unregister. For this reason, it's better to tell the listener: if you register yourself, you should know that you are just referenced via WeakReferences. If the listener suddenly doesn't get listener events, this is a coding error which can be traced and fixed. But if a listener forgets to unregister itself, the resulting memory bloat is much harder to trace.
SQL table caches are difficult. On one hand you want to cache the data, on the other, you want to free this cache memory (temporarily) for more important memory usage. It's always a trade off between 2 advantages. If performance is not the big issue, but you get OutOfMemoryExceptions, then this is critical for the application to continue working. Better a little slower than not at all ... ;-)

Rookie needs rules of thumb re: P-Pro or Soundbooth to edit audio of a video?

Hello, I'm a rookie having just purchased the CS5 Master Collection and I'm editing the video of my first skydive last week. I want to add an mp3 music track to the freefall section etc.
I've watched most of the Lynda.com "essential training" videos for both Premiere Pro and Soundbooth, but I'm still wondering which application would be best.
What are some basic guidelines or rules to decide where to edit the audio for a video? For this project, all I need to do is make the mp3 audio track start about a minute into the video and I also want to take (copy) a few short sections of the audio and insert them in different spots. Other than changing the volume level of the music at different points (which is explained pretty well in the Lynda.com tutorials), nothing really that fancy.
Thanks!
Edit: Oops! I just thought of another question: how do I convert the video file so I can play it on a Blu-Ray/DVD player and big screen TV? Right now, I can only play the DVD/video the skydiving folks sent to me on my PC.
Here is what P-Pro says about the file:
Name: "VTS_01__1.VOB
Movie, 740 x 480 (0.9091)
29.97 fps
480000 Hz-Compressed-Stereo

Thanks for your response, Bill!
I expect my 5.5 upgrade in a few days, so it's good to hear Audition is coming! (But now I have to forget what I learned in Soundbooth? ;-) )
I don't know how to convert an mp3 to PCM/WAV or even what that is (I do know what a .wav file is, however), but I'll look into it. But how can a mp3 go to a larger .wav file? I get how an .mp3 is made by reducing the samples and file size, but how can you go the other direction?
On the other hand, the "Instant HD" software you mentioned must be doing something similar with video in taking a smaller file and making it HD, right? So, does this mean I have to invest another $100 to make camcorder videos play on my Blu-Ray/DVD player? Dang, my wallet is gettin awful light these days, but it sure would be cool to watch my jump on the big screen, you know?! Will it look good after conversion or will it be a bit pixelated?
And don't worry about me: even though going skydiving again is all I think about (WARNING!: Like bungee jumping, it's habit forming!), that wallet I mentioned is keeping me safe and warm in front of my PC!

Rules of thumb for acceptable query response times?

Once I read a statement from SAP which said that users typically tolerate
response times up to 7 seconds. So you should strive to achive this goal.
Unfortunately I cannot remember in which document or webpage this
statement was made. Does anybody happen to have a reference for this rule
or any other SAP rules about the BW query response times?
Regards,
Mark

Share with us the situations where your query is running slow. How many rows are you returning via SQL Commands?
On reports; the maximum row count being returned and/or the pagination scheme can have impact on performance.
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Rule of thumb for the number of averages in an FFT for vibration analysis?

I'm doing vibration analysis on rotating machinery and would like to average the FFT to minimize variations of the data (rms averaging). How does one choose the optimum number of averages?
Also, why is it necessary to specify the number of averages (for example, in the Spectral Measurements express VI) as well as telling the VI to restart averaging. Would not the latter would be sufficient when the Spectral Measurements VI is enclosed in a loop? Thanks.

Thanks for your post.
In my experience 20 is a good number. It really depends however on a number of factors.
1) does the frequency of the rotation of the machine (speed) change? If so, averaging from an FFT would not work well. I would use the Order Spectrum in the Sound and Vibration Measurement Suite if speed changes.
2) are loads changing (and speed is constant or you are using order spectrum)? If so you will want a smaller number of averages so you do not average out the effect of fast load changes.
3) try a few numbers and note when the noise floor appears stable. This may be the best method to choose the number.
4) how often do you want a result? A smaller number of averages will produce an "averae complete" result more often.
Use the averages complete boolean to gate passing on the results (to the user interface, file, further analysis, etc.). With restart averaging on, it will restart another averaging process and toggle the boolean (gate).
Hope this helps.
Preston Johnson
Principal Sales Engineer
Condition Monitoring Systems
Vibration Analyst III - www.vibinst.org, www.mobiusinstitute.com
National Instruments
[email protected]
www.ni.com/mcm
www.ni.com/soundandvibration
www.ni.com/biganalogdata
512-683-5444

Subtitling Rules of Thumb

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