Live Sync / absolute time code

I'm trying to understand (or maybe misunderstand) how this works:
"Absolute Time Code
Ensure that existing time codes persist within media files to allow for richer synchronization between streams, improving interactive experiences (such as switching audio tracks or camera angles) with multibitrate and multistream video and synchronized playback events.
so from this it seems that we can do multi cam live sync
i unedrstand that we =need (via FMLE) to change theconfig file
<streamsynchronization>

<enable>true</enable>
</streamsynchronization>
and to allow< AssumeAbsoluteTime> in the application.xml
... can anyome point me to some documentation on this or have i totally misuandertsood this? Having done the above my streams dont sync?
I am also embedding the timecode via FMLE and triggering onFI
any help gratefull received
thanks
Matt

Thanks for that ...
but how do you account for
http://www.adobe.com/products/flashmediaserver/amazonwebservices/
"Absolute Time Code
Ensure that existing time codes persist within media files to allow for richer synchronization between streams, improving interactive experiences (such as switching audio tracks or camera angles) with multibitrate and multistream video and synchronized playback events."
beccause surely switching camera angles requires multiple DIFFERENT streams and not multi bit rate or is this just for VOD?

Similar Messages

Time code finder to auto sync separate video and audio

Hi All,
Trying to see if FCP has a tool that would allow me to type in the time code from my digital slate to instantly sync separate video & audio. Shot a low budget feature on a RED and digitally recorded audio. We did setup the RED to get reference audio but now I need to sync each scene and take up to the primo audio.
As far as I know, FCP doesn't have any such option but I hope someone proves me wrong.
~reicko

This is kind of off the top of my head, since I usually sync using the "dumb" part of the slate, but here's a workflow I'd try. I'm assuming here that the timecode from your digital slate matches the audio timecode.
1. Select an audio clip in the bin. Choose from the menu Modify/Timecode...
2. Copy the Source TC value into the Aux TC 1 row. You might have to turn on some checkboxes on the left side. Make sure the format and the rate are the same for both.
3. Open the video clip in the viewer and find a frame where you can see the smart slate clearly.
4. Select Modify/Timecode... and enter the timecode value you see in that frame in the Aux TC 1 row. Again, be sure you're using the right format and rate.
5. Select the two audio and video clips that you want to sync. Choose Modify/Merge Clips... and synchronize using Aux Timecode 1.
You should then have a new merged clip with the audio and video in sync. The scratch audio that came with the video file will be there too, so pay attention to your audio patching and be careful about which tracks you actually cut into the timeline.
I can't say for sure if this is faster than just marking inpoints at the clap on each clip. Typing in all that timecode could be hazardous to one's health.

Time code in sync window

I'm using a new intel-based mac with logic 7.2.3. When I try to enter the SMPTE start-time in the sync window it changes 0:0:0:0 and then sticks there and I can't change it. I use this window all the time when writing picture and it's really frustrating that I can't seem to enter a time code. This function works fine on my PPC based mac - is this an intel bug?

Hi Chrissy,
Yes, this is an Intel bug. Works fine on PPC. It's fixed in Logic 8, though you're bound to come across other issues should you move...
Pete

Time Code Sync Problem

I am new to final cut, and have been having a very tough time with a project that I am working on. In short, I am attempting to create a music video, and I began by laying the music tracks down first. As I go to cover the music with video, the video that I lay over the music is about two to three seconds off from the time code in which I set an in point on the source material.
As you can imagine, this is giving me quite a headache as I have to back-time my in point on the source material to accommodate this error. The same glitch is occurring with other projects as well. Although I am new to final cut, I am experienced with other programs, and have never had anything of this nature happen, especially with such a basic project.
Any help would be greatly appreciated!

Yes, thanks for your interest. I began by laying down the audio tracks on channels one and two. When editing video over the tracks, I set an in and out point on the timeline, and drag my video material into the viewer display. I then set an in point on the raw video, and select "overwrite" in the canvas display.
At this point, the clip will drop to the timeline and display a thumbnail corresponding to the clip in which I set an in point. When I render the video, and look at the timeline, the video is two to three seconds ahead of what I had marked as an in point.
I have experimented with this by starting a new project and simply setting an in and out point on the source material and adding it to an empty timeline. As before, the video will be offset by a couple seconds.
Thanks for your feedback!

Drop Frame video (29.97) with Non-Drop Frame Time Code

Howdy All,
I understand that DF TC & Non-Drop frame TC are numbering issues and not frame
count issues, That said,
If I have an encoded file captured from an analog Beta Cam SP that has NDF TC
and that file has been encoded as 29.97, so that the resulting file has
a Frame rate of 29.97 with NDF TC from the source tape,
1) Does this constitute an error?.
2) Will this cause problems for the next guy?.
(having been "The Next Guy" in the past I prefer to handle such things on this end if it requires handling)
I have been looking for a straight answer but this specific cause/effect
is tough to track down.
Thanks in advance for any assistance,
KA

Well, starting as a linear editor I can tell you jam syncing and converting to DF will really screw up the TC. Every 10 seconds you'll have a TC number that's incompatible with the DF counting sequence.
If these are source tapes, you have nothing to worry about. I actually prefer NDF source while editing (I'm very old school) beacuse if I trim 5 frames on a mark I can calculate in my head where the new point would land regarding TC. With DF, I trim and often have to do a double take because the math didn't make sense.
Do NOT ever alter the time code on any source material unless you have a capture failure that you have absolutely no other way of working around.
Anyone can mix DF and NDF source time code on any system without any issues. The only problem with NDF is determining EXCACT running time of a completed program when delivering for broadcast.

How do I get time stamped Wav files created in L7 to lock to time code?

Hello everyone,
I did a search about time stamping audio files and was VERY happy to discover the "broadcast wave" format timestamps audio files! So I'm running tests, but cant seem to get logic to actually place the audio file according to the time stamp!
Method: I'm currently scoring a film, and have each cue as separate logic files. To sync Logic's timecode and the TC window burn, I set in the "sync" song settings that bar 1 play at the start of the cue (no offset). For example, If I want to start writing a cue at 1:06:27:05, I just tell logic that bar 1 starts at 1:06:27:05 and start writing. Both logics TC & The window burn TC match perfectly. When I bounce, I choose my bars and bounce as a "wave," which creates a file with time code stamped. I verify this by looking at the file in the audio window, which shows a clock icon, as well as the specific smpte time code if you select the file before importing into the audio bin.
From here, how do I get logic to automatically place the audio files according to their time code? I've tried "import audio" directly into the arrange page as well as dragging the file over from the audio bin and neither work. I've also tried then "cutting" these and "paste at original position" hoping it would read the time code, but instead just pastes it where it was originally imported, not according to the time code.
So I'm stumped! What am I doing wrong?
thanks in advance for your help!

Highlight the regions and then from the audio menu select "move regions to original record positions"

I keep getting an internal server error when I try to load pages in live preview in edge code...

I keep getting this message every time I try to laod a page using live preview in Edge Code with Google chrome...
"The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log."
I'm using google chrome Version 33.0.1750.152. I'm running mac osx 10.9.2. I've installed Apache.
in the project settings I have this url... http://127.0.0.1/~spencer/butterville_website/
I had this working flawlessly with an earlier version of a website I was working on. I haven't changed any settings, the only thing that has changed is that I'm working with a new sub folder in the root directory. Every time I try to load the page, I get that error message. I can't figure out what I'm doing wrong. Please help! Thanks.

This query seems to be related to Edge Code. you can get help from this forum.
Also EdgeCode doesn't have troubleshooting page but you can get help from Brackets trouble shooting page.

Create an absolute time display that can be paused and scrolled

I have 3 waveform graphs that are scrolling by as the data is collected. They represent past events that can be paused, scrolled back, and printed. It represents 8 hours of data. I do not have a time stamp associated with the data going into the graphs at this time. I dont want to reinvent the Field Point code that is gathering the data just tweak the Host program that monitors the data (this would require flying to the customer site). I need to have a absolute time clock that will keep up with the data that is scrollong by and pause when the graphs are paused (that is the easy part). Here is my challenge. I am using a property node from all three graphs. I have the x scale-range-all elements tied together so they will all scroll together with 1 x scroll bar. I need to be able scroll the absolute time clock with the other information.
Any ideas?
AUTOM8

Hi,
You can use the Get date/time function to get time when the data is recorded. However be advised that this time would only be close to the actual time of data acquisition. It will not be the actual time when the data was acquired.
As for scrolling the time display, I think yout best bet would be to tie in a time stamp (Get date/time function ) with the Y values that you are already acquiring. Then when you scroll to a particular point in the graph, you can programmatically unbundle the waveform at that point to get the time value.
Regards,
Ankita

Recording an external SMPTE Time code during capture

I have several diffrent devices that I am trying to Sync using a common Smpte Code Generator. How do I record that external SMPTE Source while capturing in Final Cut Pro HD? I am currenly using a AJA Konal LS card for my capture device?

You can't with Final Cut Pro unless you capture with a tape machine as has already been stated.
If you have no tape machine you need a provision to insert the timecode into the rs422 datastream, like the [Horita TCI-50|http://www.horita.com/smpteltc.htm#RLT-50] or an [Adrienne|http://www.adrielec.com/box20lit.htm] interface. You may also want to investigate RP-188 timecode which SMPTE says "Transmission of Time Code and Control Code in the Ancillary Data Space of a Digital Television Data Stream." You probably can use [Aja's VTR Exchange|http://www.aja.com/support/kona/kona-lse-ls.php] software which will capture embedded RP-188 timecode if the video you are using does contain RP-188.

Plot absolute time

Hi,
I am reading data that contains date and time when the event occured and I need to plot that on xy chart in absolute time scale.
This is my example text line...
1/10/2007 3:51:53 PM Event Happened.....
1/10/2007 3:52:45 PM Event 2 happened....etc...
I searched other posts and couldn't find the right example...
Can someone please help me with some example? I really appreciate the help...
Thanks~!

Hi tgif,
Welcome to the wonderful world of log parsing.
LV doesn't like to graph categorical data (event 1, event 2) as well as it likes to graph continuous data (1, 2, 3... ). This means that one possible solution is to convert your categorical data to numeric data. The problem is, for that to work, you'll need to know at least most of your events in advance.
Be that as it may, there are some things that will make your life easier: your date/time stamp in your log should always be in the same place/format. Your events should be easy to recognize (delimited with tabs or other unique characters, for instance). Data corruption should be minimal (some log writers have real problems with that).
In any event, my version of sample code is attached.
Good luck (and <wave> to Dennis),
Joe Z.
Attachments:
Parse_And_Graph.vi ‏52 KB

Does anyone know a work around to broadcast live (in real time) via video stream through a BC website?

Does anyone know a work around to broadcast live (in real time) via video stream through a BC website?
~Leritha

There is no work around. You would look to use a service, like Twitch, you get a embed code for the live stream, you put that on a page and away you go. All depends on the service your using.

Why is an absolute time of 0 s stored as -57600?

I created a numeric control (type double) and formatted it to appear as absolute time (HH:MMS). The value in the variable corresponding to time 00:00:00 is -57600. (57600 corresponds exactly to 16 hours)
I can easily correct for this by subtracting -57600, but I'm curious about why the value is stored this way.
S G
Certified LabVIEW Architect, Certified TestStand Developer, Certified Professional Instructor

"I changed my code to subtract a constant absolute time of 00:00:00 (instead of -57600)."
Gotcha Warning:
I do not now about the rest of the world but here in the US there is "Day Light Savings Time" which can complicate using constants with time values.
I strongly urge you to test your code to ensure it works correctly under both DST and non-DST. This can be done by changing the system time on your machine to dates when the current DST setting isnot in effect.
Ben
PS Christian, You just have 7 more to go! I will try very hard not to post anymore than I absolutely have to.
Message Edited by Ben on 09-13-2006 02:19 PM
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

How to update the absolute time value in waveform chart for labview 6i?

Hey there,
I'm developing a control system using labview 6i on win 2000 os.I'm receiving the sensor data every minute and i want to display the data on a waveform chart with absolute time scale on x-axes. I'm using the property nodes for the offset, multiplier and maximum values putting them outside the while loop and giving them input using get date/time in seconds function. the problem is that the time doesn't gets updated w/ refernce to the computer time and after a certain period the time shown on x-axes lags by several hours. any advise?

Posting an example ussually help us nail these types of issues fast.
I am therfore forced to guess.
Do you have your code written such that the scale operations occur before the loop?
The next thing I have to suspect (not being able to see your code) is if your dt is correct. If your dt is larger than what the chart is set for, then the time will fall behind.
I have included an image showing how the chart can be used to show multiple sample rate plots such that the t0 of the readings are used to control how the readings are displayed. This example uses waveform data types (I believe they were available back in 6i). It should serve as a guide to do what you want.
I suggest you start by recreating the demo and play with it until you have what
you will need in your app.
The beauty of this method is it lets you use the chart to plot signals acquired at different frequecies and plot them all together.
reply to this answer if you have questions,
Ben
Ben Rayner
Certified LabVIEW Developer
www.DSAutomation.com
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction
Attachments:
Wform_demo.bmp ‏427 KB

Time code with multi camera

Can FCP HD edit, restripe or offset timecode for a multicam edit with the 3 source cameras having free run their own time code..not synced?
intel mini Mac OS X (10.4.5)

There's no way to do this automatically. You'll have to place and sync all clips manually.

Audition jumps time code forward on audio extracted from a .mov file

I have a video file with a starting time code of 10:41:17:23.   I open this file in Audition, apply a noise reduction effect, and export the file out as a new .wav file.
However, instead of the audio file having a starting time code of 10:41:17:23, the time code on the file starts at 10:41:34:20.
So, the time stamp has jumped forward 16 seconds, 21 frames.   And, the jump amount is not consistent. Another file had a 37 second plus jump.
Since we are talking about the STARTING time stamp, in all instances, I believe frame rate, codec, etc. are immaterial unless someone can convince me otherwise.
If I was dealing with different frame rates/codecs/etc., I could understand the time code being out of sync later in the file, but I cannot understand why it would be out of whack at the very start of the file.
Anyone got any ideas on possible cause/cure?   It's a pain having to manually search for the audio file for the correct location instead of being able to just punch in the same time code the video uses.

OK. I double checked and the timecode showed 23.976 for my test .mov file in Premier Pro, with a sample rate of 48,000 32-bit.
I made sure my timecode default was set to SMPTE 23.976 in Preferences/Time Display in Audition. I then opened the .MOV file in Audition, let it split the audio out, and moved the audio to the editor panel.
The timecode in the audition editor panel shows 23.976. The preview panel also shows 23.976.
For what is worth, the "time code" block of blue numbers in the lower bottom left of the Audition preview panel shows 00:00:00:00.    I believe this is because the primary "Time Code Start" field in the Canon 70D .mov format files is empty and the camera is putting the time code in the Alternate Time code fields.
I then opened the Effects drop down menu and applied Noise Reduction/Restoration, option Adaptive Noise Reduction, using the preset "Light Noise Reduction."
After the apply completed I saved the modified audio file with a format of Wave PCM, leaving the Sample type at the default of 48000 HZ Stereo, 32-bit and Format settings of Wave Uncompressed 32-bit floating point (IEEE).
I left the box checked next to "Include Markers and Other Metadata." And, clicked OK.
I then went to Premier Pro and opened the just saved audio file. The starting time code on the file is 10:38:52:22.   This does not match the starting time code on the original MOV file which is 10:38:14:10.
So, based on my limited understanding of both Premier Pro and Audition, I am gettting the exact same sample rate settings and time code settings all the way through the process in both Premier Pro and Audition up to the point of saving the modified file out of Audition. It is at the point of saving that things get changed.
Charles asked me to post screenshots and a sample file somewhere. I am working on doing those tonight. I just have to figure out where to post them. My original test files were quite large, but I got the same results with a 2 second file in my second test, so I'll post those files someplace.

Live Sync / absolute time code

Similar Messages

Maybe you are looking for