Audio Rendering Question

I've recently imported a large amount of footage in final cut pro that I uploaded in Imovie. Although the video plays back fine, the audio needs rendering to play in real time. I'm just wondering if anyone could tell me why I need to render this audio?
Both the sequence settings and the clip settings say they are 48 KHz and 32-bit Floating Point. The audio on the clips say its 1 stereo while the sequences say 2 outputs, could that be the problem? Thanks.

The problem is in how you captured the material. iMovie and FCP use vastly different formats. iMovie uses the dv stream codec which has the audio muxed with the video. FCP creates a QT DV/NTSC (or PAL) file with the audio and video pulled apart into separate streams within the file wrapper.
For your current material, you can convert it from .dv to QT DV/NTSC (or DV/PAL if appropriate) using QT Pro. Recognize that you will have no tape time code associated with the material so that if you ever need to recapture, you are S.O.L.
You need to learn how to use the log and capture function in FCP and now is a good time. The manual has a good explanation of the proceedure and why you should not be using iMovie in the capture process.
Good luck,
x

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Audio Rendering

Hey Guys
Im importing all my old videos through imovie using my vcr to camera to computer (since FCE needs a "timecode") when i bring in the video which can be up to 30+ minutes long is their anyway to turn off the audio rendering or still watch the footage without having to render the whole video.
It also annoys me that i can't change simple things listern and if i like render everything at the end.
does anyone have any good suggestions on what i can do?

Why not capture using FCE.
You need to change the Easy Setup to DV Converter.
Using iMovie you will always have to render the audio as iMovie uses a multiplexed DV Stream Codec.
Al

PLEASE HELP: SOURCE CODE TO WRITE AN AUDIO RENDERER PLUG-IN !!!

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Mous.

maybe
http://w1.862.tela.com/~u86203407/java/dsp/pan.html
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Hi there,
I have custom directshow audio renderer filter derived from CBaseRenderer base class and implements IBasicAudio interface.
Filter works fine with graphedit and media player classic, I am able to receive audio data. But when I try to play file using Windows Media Player, filter gets callback in completeconnect followed by breakconnect and then its discarded.
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Thanks for the reply Roman.
Most of QuerryInterface calls received in NonDelegatingQuerryInterface callback inside filter are same as that for greaphedit.
From http://blogs.msdn.com/b/mediasdkstuff/archive/2008/09/19/custom-directshow-audio-renderer-hangs-playback-in-windows-media-player-11.aspx, it seems that WMP on Windows 7 uses preferred list of filters using IAMPluginControl that cannot be modified
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Hello, I am preparing to purchase a Mac Pro and spent some time at the local mac affiliate store playing with FCP and motion.
In fcp I took two clips and dropped them in the timeline, adding the 3d cube transition, and some filters to both clips.
I was looking at performance of real time rendering on teh base config of the MP I plan on purchasing.
I then added another clip above these two, intending on dropping the opacity to further push the RTR (real time rendering). This clip overlapped the transition of the two other clips in v1 and v2.
When attempting to play the timeline the viewer window now said "Not Rendered"
My question is:
Is there a limit to how many tracks can be run under the RTR? Why did I get this message?
My main reason of the move to a Mac Pro is to get away from constantly pre-rendering.
Thanks everyone in advance!

In fcp I took two clips and dropped them in the timeline, adding the 3d cube transition, and some filters to both clips.I was looking at performance of real time rendering on teh base config of the MP I plan on purchasing. I then added another clip above these two, intending on dropping the opacity to further push the RTR (real time rendering). This clip overlapped the transition of the two other clips in v1 and v2.
<
Sounds like you know what you're doing and what you expect. A factor that has not been mentioned yet, besides RAM, prefs and drive speeds, is your video format.
Also, the new rev of FCP is taking advantage of tons of processing overhead, vastly increasing the amount of stuff you can do in real time. However, real time is largely a preview operation, regardless of the machine or system, unless you are using proprietary codecs, such as Media 100, that might be hardware-assisted. Output is almost always a rendering issue, multiple stacked or processed layers require the creation of new media.
The only way you're going to be able to decide if Macintosh and FCP are right for you is to demo thoroughly and that requires using your own footage.
bogiesan

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My husband and I recently purchased a MacBook Pro last November, recently installed Final Cut Pro 5 on it 2 months ago, and now we're experiencing audio problems we've never encountered before.
Fresh new project, new timeline, import a stereo audio file, double click and playing from the viewer it's perfectly fine, but put it on the timeline, shows up on two separate tracks and needs rendering, we render it and it turns into mono. It didn't do this before, we don't know what we changed, it used to work but now it doesn't. We must have changed something but we can't figure out what we did wrong. Even if we separate the stereo track into two mono tracks on the timeline, pan one left and the other right, it remains mono.
Please help, we're completely stumped on this one! Thanks!

The only problem with converting the audio files to 48 is that we have about 200+ audio files, living on about 17 layers, each with their own settings for speed and reverse and eq and more. Going back to reimport all that stuff would kill our deadline by about 40 hours = not possible.
But I did download that utility you suggested, it discarded our prefs, and now everything seems to be better. I'm having to "fool" FCP by placing an EQ filter set for 0 gain (i.e. no change) onto each clip, which trashes the render file, and when it rerenders it's ok, sometimes. For the ones that aren't changing out of mono I go back in and throw away that eq filter and re-render and then it's in stereo. Very strange. Also strange is that some of these animation clips now have 1 frame of black at the tail end before cutting to the next clip - very odd since the original files have NO black at all.
Something very strange happened.

Ridiculously simple audio editing question for Garage Band

Ok, so this is really a fundamental
question. It concerns editing technique.
In analog mixing, the editor put
the sounds to be saved in the right
places on each of several tracks --
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music, etc. The tracks were then
all locked together and the mixer
adjusted the volumes to either save
or reject audio information.
A blank master received the information
and that was your final product,
in sync, sprocket by sprocket, with
the video.
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do it in digital multitrack such as
Garage Band? Are you aiming to have
4 or 5 tracks all level controlled
or do you simple erase unwanted
sound, or what exactly do you do,
in post production? If you are going
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do a mix at some point, not just a
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Ed

Wow... you gave me flashbacks to a movie soundtrack I scored, with separate reels of tape all synced up and whirling away for final mixdown!
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Gain staging in digital recording is different than in analog, and it requires a different approach to achieve excellent sounding results. But the digital workflow is so much more flexible, forgiving, and economical, that it has been the death-knell for the analog workflow. Infinite bussing, routing, mixing, comping, storing, stemming... infinite possibilities, really!

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Hey all, Mike the newbie has more questions
I imported about 6k images into lightroom and I'm working on organizing them within the collections but my question previews. As I scroll through the library there is a delay in seeing the images as they seem to render realtime. This seems to impact me more when the library has larger images and I'm scrolling down more.
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I imported the images using the 1:1 previews, would going with standard preview produced a better performance result?
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I answered my own question!

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Hi everyone,
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Hello!
There is a Java Sound mailing list. You would get more response from those subscribers. You can join it from here: http://java.sun.com/products/java-media/sound/list.html
Hope that is helpful.
Regards,
Steev.

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Hi,
I am building a program where the participant listens to a
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Thanx in advance!
Gary

Hi again
No, you aren't doing anything wrong. That's the way rollover
Images and Captions work. They don't display until your user mouses
over the rollover area. You asked for something that could be
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Hi.
Interessting Question. The macmini must have an intel core cpu and gigabit ethernet. The older models don't fit the specs for Logics QNode wich is needed, to let the iMac do distributed audio processing on the macmini. Additionally you have to connect the two macs with a gigabit network.
http://www.apple.com/logicstudio/logicpro/specs.html
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http://www.uaudio.com/products/uad-dsp_menu.html
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Windows Media Player sucks. That's about the best 'why' I have for that.
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