Improve encoding speed for WMV output?

Hi,
Firstly, apologies if I am posting this in the incorrect area of the forums. I'm not entirely sure it's a hardware issue, I think it might be codec related.
I am trying to find a way to reduce encoding times for a (on average) 4 minute clip using Premiere/AME CS5
My input format is either XDCAM HD or IMX50, my output formate is always wmv, 720x 576 (PAL) interlaced, currently single pass encoding (because of the time taken) using the Windows Media Encoder (wmvencod.dll).
There are no effects, nor transistions in my sequence. 2 tracks of video - 1 actual video, the second a logo overlay. 1 stereo pair for the audio.
Hardware is a single Intel Xeon, quad core 2.5Ghz processor, currently with 10Gb memory. I have tried doubling up on the processors and also increasing the memory up to 16Gb but the improvements are marginal. Switching hyperthreading off also provides a marginal improvement in encoding time.
I am running this on a server class 1u box. Currently it only has the standard vga server graphics card in it. I have mixed feelings about installing a graphics card as I have read conflicting information about whether it will provide an improvement in my encoding time.
I don't think MPE is relevant, given that I'm not doing any effects processing.Will the CUDA architecture provide a significant improvement?
I can only find 2 graphics cards that I think will fit in the box and these are the Quadro 4000 and Quadro FX 3800 that retail at around £650 - £800 + so it's a significant punt if they aren't going to provide an improvement.
In essence, I have a template (well a couple of) project that I add the source file to each time that gets dropped into AME for encoding. For HD source encoding takes about 4 times real time. For SD it's about real time.
If I chose a different output format, with the same input format eg h264 or DV (avi) then the encoding time is reduced to roughly 1/3rd of what I am experiencing at the moment. That gives me the impression that the wmv encoder is the bottle neck
Are there alternatives to using the standard Microsoft WMV encoder? If so, how do I go about getting AME to use them, given that prior to installing Media Player I didn't even have wmv as an export option.
Any thoughts on this would be appreciated.

I couldn't tell you whether or not it uses the same dlls as the Microsoft program... that's getting deeper under the hood than I usually go! :-) If it is, then you're correct in that going to an intermediate and using WME isn't going to speed up your process.
For more info on hardware, go to www.ppbm5.com and look at the test results page... see what folks were using who got the higher results. IIRC, your specific processor (even in its dual form) is a rather poor performer with this kind of stuff, and the Core i7 line is much better.
Out of my own curiosity, I'm running a test on my system to see if I can reproduce the similarly long encode times with WMV versus h.264. I've got a 4:23 AVCHD clip which I'm rendering first using h.264 MainConcept to PAL DV Widescreen HQ (the only reason I'm using PAL here isbecause that's what you're using, and I wondered if it would go differently than NTSC... I've never used PAL before). The full encoding time for that in h.264 was about 1:45, so a little better than double real time. The same clip, rendered with WMV using PAL Widescreen source to HQ Download is taking about 3:15, so pretty much double the h.264 clip's time, but still better than realtime, and nowhere near the results you're getting.
I don't remember what you said your HD setup was like, but make sure you've got multiple hard drives, preferably a RAID for your data disk. I learned that having a good disk configuration can really make a lot of difference, all other things being equal!

Similar Messages

How can I encode my film sequences, using OSX Mac version of Premiere Pro & Media Encoder? for WMV

Hello Everyone, I have a slight issue. I'm runnning CS6 Premiere Pro and adobe media encoder both on the Mac OSX system. I'm trying to encode or output my file as a WMV so it can be used using the Window media player on the PC windows. I can't find the option to do that. Strangely, I have seen this setting on the Window version of CS suite and can't understand why it has been excluded from the MAc version. Please can someone advise in some detail on how to encode the for WMV using the MAC version of the Creative Suite? Much appreciate. And no I don't know what losslessly compressed master means as mentioned in a previous forums. PLEASE HELP. THANKS GUYS.

You need a plugin called Flip4Mac to create a wmv on a Mac
It plugs in to Quicktime.
WMV is generally unavailable on MAcs cos its a Windows thing ( Windows Media Video)
just like PorRes is not available generally on a Windows system.

How to improve the speed for backing up files to time capsule via in hose wifi?

How to improve the speed for backing up files to time capsule via in hose wifi?

via in hose wifi?
Use a bigger hose??
House??
Need to spell this out a bit more..
But speed via 2.4ghz to the TC is restricted by Apple to max 130mbps link speed.. much slower actual transfer.. latest TC and laptops can do 450mbps on 5ghz but you need to be up close.. so place the TC near the device using it.. and force 5ghz connection by using a different name for 5ghz network.

Encoder Options For *.wmv Files re Premiere Pro CS5.5

Hi,
I have a collection of *.wmv files that Premiere Pro CS5.5 refuses to open and it always generates an error message so I need to re-encode these *.wmv files into a format that Premiere Pro will import OK. I know that Premiere Pro will open *.wmv files so I think that the ones I have must have some data structures slightly out of normal. The files actually play with VLC and open with Sony Vegas so they are not corrupt.
What I hope to do is to use an encoder that will re-encode the files without any loss of video quality into another format or even into a slightly renamed *.wmv file in the hope that the re-encoded version of the *.wmv file will then be palatable to Premiere Pro.
Would anyone please be able to recommend an encoder that is suitable for my needs? On a final point, as a total novice with video, what aspects on re-encoding would cause loss of video quality or is there no loss of quality when re-encoding? Apologies for such a dumb question but I really am a newbie to all this.
Rgds

If you can get the files open with Vegas, you could probably export them using Lagarith Lossless Video Codec or Ut Video Codec Suite, both of which are lossless AVI codecs that work nicely with Premiere Pro. PPro needs the 64-bit version, but I don't know enough about Vegas to know if you need 32-bit or 64-bit, so just install both. Note that the files will be much larger, but will not suffer any perceptible quality hit.
I'm not sure of any way to do a WMV rewrap--I'll see what I can find.

Improve speed for deleting process

Hi all,
I am writing a housekeeping program to check on the table ZTP_ADA for the invalid date format.
If invalid date format record is found, then delete the record (delete those records which are erroneous). The table is having a huge number of records, might reach around millions of records.
To make it short, the program will does this: -
1) Delete records which are in invalid date format.
My question is, how to improve the speed for the current program, which might takes more than half an hour for deleting records.
Any suggestions or ideas are greatly appreaciated.
Million thanks.
DATA: lv_datum TYPE sy-datum,
      lv_commit TYPE c,
      lv_excep TYPE REF TO CX_ROOT.
DATA: ITAB_ADA TYPE SORTED TABLE OF ZTP_ADA WITH NON-UNIQUE KEY TABLE LINE,
      WA_ADA LIKE LINE OF ITAB_ADA.
SELECT * from ZTP_ADA
INTO TABLE ITAB_ADA.
LOOP AT ITAB_ADA INTO WA_ADA.
lv_datum = WA_ADA-DATUM.
CALL FUNCTION 'DATE_CHECK_PLAUSIBILITY'
EXPORTING
date = lv_datum
EXCEPTIONS
plausibility_check_failed = 1
OTHERS = 2.
IF sy-subrc <> 0.
DELETE FROM ztp_ada
    WHERE DATUM = WA_ADA-DATUM.
ENDIF.
ENDLOOP.

Did u try to remove the sorted table option from the internal table.Sorted table needs to be used only in case the records are sorted. And it adds to the processing if it is not sorted properly.
Make the internal table Standard table
Also I find that you are actually deleting the entries from the database table.
Delete the entries from the internal table which are having the wrong date format.
Then delete all the entries from the data base table and update the internal table into the database. This will be faster and you will hit the data base only thrice in the whole program.
This will fasten the process.
I would have used the following code below
DATA: lv_datum TYPE sy-datum,
      lv_commit TYPE c,
      lv_excep TYPE REF TO CX_ROOT.
DATA: ITAB_ADA TYPE STANDARD TABLE OF ZTP_ADA,
      WA_ADA LIKE LINE OF ITAB_ADA.
SELECT * from ZTP_ADA
INTO TABLE ITAB_ADA.
DELETE * FROM ZTP_ADA
INTO TABLE ITAB_ADA.
LOOP AT ITAB_ADA INTO WA_ADA.
lv_datum = WA_ADA-DATUM.
CALL FUNCTION 'DATE_CHECK_PLAUSIBILITY'
EXPORTING
date = lv_datum
EXCEPTIONS
plausibility_check_failed = 1
OTHERS = 2.
IF sy-subrc 0.
DELETE ITAB_ADA WHERE DATUM = LV_DATUM.
ENDIF.
ENDLOOP.
INSERT ZTP_ADA FROM TABLE ITAB_ADA.
Hope this helps.
Regards,
Hari

Encoder speed and orientation on NI 9401 in cDAQ-9172

Hello, I've acquired a ni 9401 module for my cDAQ-9172 and it's now installed in slot five to connect a dual channel encoder. Channel A is connected to pin 14 and channel B to pin 17 and the encoder is powered by 5v dc.
I want to mesure the speed and if possible the orientation of rotation.
To do this I started with the VI in attach, that can count the total of pulses in the encoder.
My question is, how can I change the DAQmx Create Channel to Frequency, and the DAQmx Read to Counter Pulse Freq 1 Chan 1 Samp, to calculate the actual encoder speed and orientation?
Solved!
Go to Solution.
Attachments:
encoder.vi ‏63 KB

Hi Eric.
Once again, thank you very much for the help.
I think I finally did it. The Vi is reading the speed witch I think is right, but there's some oscilation.
I've connected only the signal A from encoder to pin 14 on the NI-9401, and the pin 1 to ground. The signal B is not connected right now because I only have one NI-9401 on a cDAQ-9172, so only one counter.
The VI you just send me, is calculating the speed (frequency), witch I divid by 200 because those are the pulses per revolution of the encoder, but I can see a little of oscillation on the speed measured (see picture in attachment).
For now, my question is if is possible to improve the measurement, and how?
Thank you.
André Quintino.
P.S. - Note that in the picture in attachment, the speed is the one measured by the VI you just send me. The encoder was running at 1524RPM witch are 25,4Hz. Since the speed in the graph is multiplied by 200 (the pulses per revolution of the encoder), this result in a measurement of 5080 witch is the average number by the graph.
Attachments:
Screen shot 2011-01-12 at 00.41.13.png ‏16 KB

.wmv output looks blurry

Ok here's the scene..boom:
CS5
SD footage with titles and logo trying to encode as .wmv. When switching back between source and output window, the output is considerably blurrier than the source. I have scaled down my images and logos in PS before importing into PP. The main problem is that my lower third is somewhat blurry.
I have been succussful in the past encoding the exact same video to .WMV. This is why I'm stumped. It has worked before and now the output is slightly blurry for everything on the screen no matter what I change in the encoding options.
.mp4 (H .264) works great, but, I need .WMV in addition to MP4. Thats just what my employer wants. We use .WMV to send to customer PCs and .MP4's for youtube.
Output: 720x480 (.9091), compressed, VBR, 2 pass, Avg 1500kbps
Source: 720x480 (.9091)
I have been fiddling with images and the timeline itself sine the first successful encode to .WMV a few months ago. is there anything that I could've done to the timeline or certain importing that might affect this for .WMV.
Thanks

That’s exactly what I was thinking about bringing up with my employer. Isn't .wmv good in the sense that a lot of people can make use of it.
Is .avi just as compatibile with Media Player.
We send out dozens of different videos to thousands of different potential customers. Some have PCs of different capabilities and others have Macs.
What would be a better format that could serve all those people? Or most of those people I guess. I was thinking .avi and maybe start doing .mov for the Mac users.
Thanks

Encoding speed

Hi there, Arch (x86_64) has been my home for a while now. Satisfied as I am, I regularly try out other distro's. I've just tried out Xubuntu 7.10 & was quite surprised when ripping a DVD with mencoder, it was almost 3x faster than Arch.
Any idea how this could be so much quicker? I've made custom builds of mplayer, lame & xvidcore for Arch, resulting in absolutely no improvement. It'd be nice to get this performance where I'm more comfortable, after all, Arch kicks 455 at everything else.
Screenshots showing issued command, time, psnr, size, etc:
http://xs.to/xs.php?h=xs220&d=07443&f=arch.jpg
http://xs.to/xs.php?h=xs220&d=07443&f=xubuntu.jpg

retsaw wrote:Are you using the same version of mplayer on Arch and Xubuntu? Do you get the same encoding speed difference when encoding to different codecs?.
Both Arch & ubuntu use the same version of mplayer (0.9rc1), though Ubuntu splits mencoder into a separate package:
http://packages.ubuntu.com/gutsy/graphics/mplayer
http://packages.ubuntu.com/gutsy/graphics/mencoder
I hadn't tried other codecs, so here's the command & time results using lavc:
Mencoder options:
time mencoder dvd://1 -chapter 2-2 \
-oac mp3lame -lameopts abr:br=128 \
-ovc lavc -lavcopts vbitrate=2880:mbd=2:trell:v4mv \
-vop scale -zoom -xy 720 -o wotw_5.avi
Arch:
real 2m42.298s
user 2m37.750s
sys 0m0.837s
Xubuntu:
real 2m48.272s
user 2m43.518s
sys 0m0.612s
That's more like it. I guess something's not quite right with xvid. As xvid works (only slowly in comparison to Xubuntu), what can I/we do to improve it?
PS, skottish, 'enc' is just where I've kept my mencoder options for these tests, I know the only difference was the file name, it's just habit. I only included it in the screenshot so you could see the issued command & that they were the same. The list's now got quite a bit larger, with a little variation: http://pastebin.archlinux.org/17045

Improve query speed

Hi there,
I'm relatively new to Pl/SQL and to APEX and i'm developing a application on APEX. So i have a report on a page which pulls out the orders according to the type of user. If the type is not LOG_FARM,'MANAGER','MNG_FARM' the code runs fine in acceptable time but when the user is one of those three it takes almost 3 minutes to finish the query. What i wanted to know is if within the code you see any clear change that i could do to improve the speed or if i can for example bring only the newest results (although this last option is not good because i have a search engine above and like this i wont have acess to older registers).
Declare
v_restricao varchar2(100);
v_restricao_dim varchar2(4000);
Begin
if :G_APP_USER_EMP_TYPE = 'LOG_FARM' then
v_restricao := 'and FO.ORDER_LOGISTICS = ''Y''';
else
v_restricao := null;
end if;
if :G_APP_USER_EMP_TYPE IN('MNG_FARM','DIM_FARM') then
v_restricao_dim := '
WHERE pharmacyid in (SELECT pharm_id
FROM dim_user
WHERE UPPER (emp_login) = UPPER ('''||:app_user||''')) ';
end if;
if :G_APP_USER_EMP_TYPE = 'CALL_FARM' then
v_restricao_dim := '
WHERE pharmacyid IN (SELECT DISTINCT pharmid
FROM dimuser
WHERE SEL_PHARM = ''Y'' ) ';
end if;
if :G_APP_USER_EMP_TYPE IN('LOG_FARM','MANAGER','MNG_FARM') then
return 'SELECT fo.pharm_id, fo.order_id, dp.pharmacy_dsc, ds.whs_dsc, to_CHAR(fo.order_dt,''DD/MM/YYYY'') AS ORDER_DT,
fo.order_obs, acronyms (fo.order_stat, ''ORDER.STATUS'') as STATUS,
fo.order_stat
FROM fact_order fo,
dim_pharm dp,
dim_whs ds
WHERE upper(order_id) LIKE NVL(upper('''||:p501_order_id||'''),''%'')
AND fo.pharm_id = dp.pharmacy_id
AND fo.whs_id = ds.whs_id ' || v_restricao || '
order by fo.order_id desc ';
ELSE
return 'SELECT fo.pharm_id, fo.order_id, dp.pharmacy_dsc, ds.whs_dsc, to_CHAR(fo.order_dt,''DD/MM/YYYY'') AS ORDER_DT,
fo.order_obs, acronyms (fo.order_stat, ''ORDER.STATUS'') as STATUS,
fo.order_stat,(select dkap.emp_name from dim_kap dkap where DKAP.PHARM_ID = FO.PHARM_ID AND DKAP.sel_pharm = ''Y'') AS KAP
FROM fact_order fo,
dim_pharm dp,
dim_whs ds ,
(SELECT pharmacyid
FROM dim_pharm ' || v_restricao_dim ||' ) dim_phar
WHERE upper(order_id) LIKE NVL(upper('''||:p501_order_id||'''),''%'')
AND fo.pharm_id = dp.pharmacy_id
AND fo.whs_id = ds.whs_id
and FO.ORDER_LOGISTICS = ''N''
AND dim_phar.pharmacy_id = fo.pharm_id
order by fo.order_id desc';
END IF;
END;
The two are quite similar only the second has a condition to show only the pharmacys associated with the current user and the first one shows all the pharmacys.
Thanks in advance.
Bruno

Hi there,
I'm relatively new to Pl/SQL and to APEX and i'm developing a application on APEX. So i have a report on a page which pulls out the orders according to the type of user. If the type is not LOG_FARM,'MANAGER','MNG_FARM' the code runs fine in acceptable time but when the user is one of those three it takes almost 3 minutes to finish the query. What i wanted to know is if within the code you see any clear change that i could do to improve the speed or if i can for example bring only the newest results (although this last option is not good because i have a search engine above and like this i wont have acess to older registers).
Declare
v_restricao varchar2(100);
v_restricao_dim varchar2(4000);
Begin
if :G_APP_USER_EMP_TYPE = 'LOG_FARM' then
v_restricao := 'and FO.ORDER_LOGISTICS = ''Y''';
else
v_restricao := null;
end if;
if :G_APP_USER_EMP_TYPE IN('MNG_FARM','DIM_FARM') then
v_restricao_dim := '
WHERE pharmacyid in (SELECT pharm_id
FROM dim_user
WHERE UPPER (emp_login) = UPPER ('''||:app_user||''')) ';
end if;
if :G_APP_USER_EMP_TYPE = 'CALL_FARM' then
v_restricao_dim := '
WHERE pharmacyid IN (SELECT DISTINCT pharmid
FROM dimuser
WHERE SEL_PHARM = ''Y'' ) ';
end if;
if :G_APP_USER_EMP_TYPE IN('LOG_FARM','MANAGER','MNG_FARM') then
return 'SELECT fo.pharm_id, fo.order_id, dp.pharmacy_dsc, ds.whs_dsc, to_CHAR(fo.order_dt,''DD/MM/YYYY'') AS ORDER_DT,
fo.order_obs, acronyms (fo.order_stat, ''ORDER.STATUS'') as STATUS,
fo.order_stat
FROM fact_order fo,
dim_pharm dp,
dim_whs ds
WHERE upper(order_id) LIKE NVL(upper('''||:p501_order_id||'''),''%'')
AND fo.pharm_id = dp.pharmacy_id
AND fo.whs_id = ds.whs_id ' || v_restricao || '
order by fo.order_id desc ';
ELSE
return 'SELECT fo.pharm_id, fo.order_id, dp.pharmacy_dsc, ds.whs_dsc, to_CHAR(fo.order_dt,''DD/MM/YYYY'') AS ORDER_DT,
fo.order_obs, acronyms (fo.order_stat, ''ORDER.STATUS'') as STATUS,
fo.order_stat,(select dkap.emp_name from dim_kap dkap where DKAP.PHARM_ID = FO.PHARM_ID AND DKAP.sel_pharm = ''Y'') AS KAP
FROM fact_order fo,
dim_pharm dp,
dim_whs ds ,
(SELECT pharmacyid
FROM dim_pharm ' || v_restricao_dim ||' ) dim_phar
WHERE upper(order_id) LIKE NVL(upper('''||:p501_order_id||'''),''%'')
AND fo.pharm_id = dp.pharmacy_id
AND fo.whs_id = ds.whs_id
and FO.ORDER_LOGISTICS = ''N''
AND dim_phar.pharmacy_id = fo.pharm_id
order by fo.order_id desc';
END IF;
END;
The two are quite similar only the second has a condition to show only the pharmacys associated with the current user and the first one shows all the pharmacys.
Thanks in advance.
Bruno

How to improve spreadsheet speed when single-threaded VBA is the bottleneck.

My brother works with massive Excel spreadsheets and needs to speed them up. Gigabytes in size and often with a million rows and many sheets within the workbook. He's already refined the sheets to take advantage of Excel's multi-thread recalculation and
seen significant improvements, but he's hit a stumbling block. He uses extensive VBA code to aid clarity, but the VB engine is single-threaded, and these relatively simple functions can be called millions of times. Some functions are trivial (e.g. conversion
functions) and just for clarity and easily unwound (at the expense of clarity), some could be unwound but that would make the spreadsheets much more complex, and others could not be unwound.
He's aware of http://www.analystcave.com/excel-vba-multithreading-tool/ and similar tools but they don't help as the granularity is insufficiently fine.
So what can he do? A search shows requests for multi-threaded VBA going back over a decade.
qts

Hi,
>> The VB engine is single-threaded, and these relatively simple functions can be called millions of times.
The Office Object Model is
Single-Threaded Apartments, if the performance bottleneck is the Excel Object Model operation, the multiple-thread will not improve the performance significantly.
>> How to improve spreadsheet speed when single-threaded VBA is the bottleneck.
The performance optimization should be based on the business. Since I’m not familiar with your business, so I can only give you some general suggestions from the technical perspective. According to your description, the size of the spreadsheet had reached
Gigabytes and data volume is about 1 million rows. If so, I will suggest you storing the data to SQL Server and then use the analysis tools (e.g. Power Pivot).
Create a memory-efficient Data Model using Excel 2013
and the Power Pivot add-in
As
ryguy72 suggested, you can also leverage some other third party data processing tool
according to your business requirement.
Regards,
Jeffrey
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
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HERE to participate the survey.

What are best Mpeg encoder settings for making DVDs?

In switching from PP1.5 to CS3 the procedure is different for making DVDs and we have to encode mpeg files that later get picked up by Encore DVD build proces. What are the best mpeg encode settings for making the DVDs?
Thanks,
Chuck Taylor

Question:
If you are doing a video that is small enough that you are not worried about size, what is the absolute best quality encoder settings? Would a Continous Bitrate result in a higher quality file generally? VBR is for trying to make a smaller file I assume.
I'm frustrated with even white letters on black titles that have some flicker. I just don't seem to get the smooth quality I desire.
Should I look at a different encoder?
If you output PP3 to an AVI and then import it into encore, isn't there a reduction of Q. due to the save to the AVI file?
thanks.

Premiere Pro CS5.5 encoding speed

Hi,
I noticed that the time for encoding a video in Premiere with GPU acceleration enabled doesn't change according to the shaders clock speed. The time is exactly the same with or without GPU overclocking, is this normal?
Another question: the encoding speed is faster during the first 50% of the process, then decreases a bit. Is this related to some option in the program or it's normal?
Thanks in advance.
Luis

I've made an encoding test where we can see that GPU participates more actively in the first half of the encoding process and therefore I don't understand why you said "The GPU is not involved in encoding, that is a purely CPU matter". From 50% until the end of the process CPU takes the lead.
Luis

Work flow? How to link multi-cam sequences for DVD output?

Pr cs4 (very new)
Still taking baby steps each day... please take my hand and help me!
Final output will be 2 DVD's (each DL) each about 2 hrs. Content are chamber music student groups in two recitals.
I have assets from two camera angles. I have successfully practiced on one of the groups performance (10 min.) following the steps illustrated in a multi-cam tutorial. http://www.adobe.com/designcenter/video_workshop/?id=vid0234
This leaves me with a great multi-cam sequence for that group located in the Project Panel, exactly what I want.
Now, I want to know what is the best method (workflow?) to ultimately produce a DVD containing about 10 of these type performances (one after the other) with chapter markings for each group, titles etc.?
I have yet to use Encore and I'm guessing that is where I'll send the finished edit for DVD production, though I don't know at what step I jump there?
Do I try to create one very long multi cam sequence of all the content, then send to Encore? Or can I create seperate multi-cam sequences (each performance) then link them together, adding transitions and make the DVD? This would be my preference to keep things more manageable, especially with audio synching.
With my practice multi-cam sequence on the timeline, I tried to drag the same sequence from the Project Panel to the end of the timeline to simulate how this would work, but it does not add to the timeline as a clip would.
This is probably childs play for you pro's, but we were all baby's at one time...I just happen to still be one!
Thanks for your patience and advice,
Kenny

Yes I did...now toss me a cookie please.
I am trying to quickly get up to speed in Pr CS4 to get this project completed. In the process, I'm trying to learn and understand the interface and correct terminology so as to make my questions intelligible to a community that posses vastly greater understanding than myself.
Is there anyone who can help with my main question at hand? Namely, how to go about creating a full length sequence (in the timeline) made via the nesting of synchronized multi-camera clips within a new "multi-cam sequence"?
As I said, I have completed a small test sequence in this fashion, nesting clips in a new sequence then using multi-cam monitor to record cuts. Now I need to add about 10 more of these together in a completed sequence to then send to DVD production.
Is this intelligible?
Thanks, Kenny
__0
_ \<,_
Date: Wed, 4 Nov 2009 09:11:06 -0700
From: [email protected]
To: [email protected]
Subject: Work flow? How to link multi-cam sequences for DVD output?
please take my hand and help me!
Well, at least you had the gumption to admit that up front.
>

Encoder Speed with NI 9215 module and cDAQ-9172

I've a NI cDAQ-9172 with the NI9215 analog input module, and I want to estimate the speed with an optical encoder (OMRON E6A2-CW3C). My approach was, making a comparison with a point in the midle of the high of the signal, ie 4V, making this way a perfect square signal with 1of high. After that I use the Tone Measurements and the Timing and Transition Measurements modules to calculate the frequency of the wave form, and this way I'm able to calculate the RPM speed.
The problem with this solution, is that even with the engine at a constant speed of 746RPM, measured with a stroboscope, Labview give me a high variable values between 730RPM to 760RPM, and I can't solve this problem because I really need an accurate measurement.
Should I buy for example the NI 9401 module to make this measurement? If so, does any one knows how to build a VI to get the encoder speed?
In attach I send the VI that I'm using to calculate the speed.
Thank you for help.
Attachments:
Encoder Speed.vi ‏112 KB

Hi,
The best way to measure a speed through a quadrature encoder is to use the counters that are inside the cDAQ chassis.
With the 9172 chassis, you need a digital I/O module (9401) in order to access the counters.
With the new generation of chassis (9178), you don't need the 9401 because you can connect your encoder signals to the BNC.
Best regards,
Thomas B. | CLAD
National Instruments France
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Slow. iMac 10.5.8. Verified Disk Permissions and then Repaired Disk Permissions. Not much improvement in speed. How do I empty internet files from safari?

iMac 10.5.8 is slow. Verified Disk Permissions and then repaired. No big improvement in speed.
What about internet files (safari and firefox) ; caches and cookies?
Thank you.

Applejack might help.
Download:
http://sourceforge.net/projects/applejack/
Article on using:
http://reviews.cnet.com/8301-13727_7-10334620-263.html?tag=mfiredir
It runs in single user mode, where it runs more safely than other maintenance/cleaning programs because there is less chance of interference from the OS. After installing (you won't see it in the Applications Folder) hold CMD-S at startup. You will get a black screen with MS-DOS like text. Just follow the prompts: type in "applejack AUTO" and it will run through the following:
Correct any Disk problems.
Repair Permissions.
Clear out Cache Files.
Repair/check several plist files.
Dump the VM files for a fresh start.
Trash old Log files.
You can also run tasks selectively and for specific users by typing in "applejack." After running in "AUTO," you can go back and run it again as "applejack," steps 3 & 4 only, for your user.
The first reboot will take much longer than usual, as it rebuilds caches. It may take several restarts to see the benefits. Because of the deep cache cleaning in AUTO mode some applications may tell you they are being opened for the first time.
NOT YET UPDATED FOR LION
(Adapted from post by BDAqua)

Improve encoding speed for WMV output?

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