Compressor encoded speed change clip with echo as motorboat sound

Took me two days to troubleshoot, through trial and error and process of elimination, why Compressor encoded an audio clip that had been speed changed and echo applied to it -- as rapid MOTORBOAT sound! Project is a 5.1 mix. Since STP3 won’t accept speed change clips, after I completed mix in STP I placed speed changed clips on FCP timeline below the exported STP 5.1 mix with the FCP audio tracks for that clip assigned to channels 1 & 2 for the fronts and channels 5 & 6 for the rears. The clip on 5 & 6 was duplicated and identical in every way to the clip on channels 1 & 2. Only the dupe clip on 5 & 6 did Compressor encode as motorboat. The identical clip on 1 & 2 encoded correctly. Both clips were set to play at same time since I wanted the effect to be on fronts and rears simultaneously. I could not get the motorboat sound to play back from either FCP timeline or Compressor preview window. Only after encode and burn to DVD did it show up. Why would Compressor introduce such artifacts on one of the clips and not both – if it’s going to do it at all – which it shouldn’t? Any ideas? I have other such effects throughout the project where I duped a speed changed clip with an effect applied to it and set it to play on fronts and rears simultaneously and Compressor encoded those correctly.

Well, it's a little late, but this is one of the reasons to have your startup drive cloned so you can restore it to a working state if an update, upgrade or install sends things south.
https://discussions.apple.com/docs/DOC-2494
Have you tried resetting your fcp preferences
https://discussions.apple.com/docs/DOC-2491
If this doesn't fix the problem, you could try sending the shot to motion. You could aslo try changing the speed in the motion tab of the viewer.

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Basically it shakes. But only when frame blending is ON.
the regular HDV footage is very clear and very smooth

well, my guess is that, for whatever reason, when the DV (lower field) media was recompressed to HDV (upper field) the field dominance was not correctly reversed as it should have been ... consequently, regardless of the dominance reported by the clip, it is nonetheless wrong.
you might try going back to compressor and retesting on a DV clip whilst tweaking the settings ... see if you can discover the cause and the cure.
you might also want to try sidestepping the issue with a deinterlace filter ... Effects>Video>De-interlace - test with the different levels of flicker filtering, see what gives you best results.
also check out the proapptips website http://www.proapptips.com - there are a number of links to providers of plugins, both free and commercial, i'm pretty sure that one of the free ones has a field-shifting plug or some such ... you should have a poke around, see what you can find

Optical flow for speed change clips

Im just found out about optical flow. what speeds is it worth using it on?
Ive got some clips that I want to play between 40% and 80%.
just asking because in the tutorial I saw they where using it on a clip at 10%
thnaks for any advise

I see two issues.
One is that your source footage is 15 frames per second. Most video that iMovie sees is 30 frames per second or 25 frames per second.
Second issue is that you don't appear to have the Apple Intermediate Codec component installed on your system. When the footage can't be speed adjusted natively, iMovie will convert the footage to Apple Intermediate Codec at 30 frames per second so that the speed adjustment can be applied.
So, you need to reinstall iMovie from the original iLife 09 disks. If iLife 09 was preinstalled on your Mac, reinstall it from the Leopard Disks that came with your Mac.
You are missing the file called AppleIntermediateCodec.component in the MacintoshHD/Library/QuickTIme/ folder.

When reversing speed on clip back to 100% my sound does not change

I speed up a section of video clip to 150% but when I converted it back to 100% the sound stayed at 150%. Why is this? Also is it easy to separate sound tracks from video tracks?
Sorry I am new to FCP and have lots to learn.

Welcome to the forum!
To separate the audio from the video, you need to unlink them (Command L).
-DH

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'uncle_alice' - in the OP's other thread on this topic I posted a decorated InputStream class that will strip of any (well any I could find definitions of) BOM prefix. Using this it is almost trivial for the OP to convert a file from one encoding to another without worrying about the BOM. I showed him the water but I can't make him drink.

Slow motion and speed changes blurry jittery - SOLUTION!

I Have had a few issues with slo mo and sped up stuff going blurry or jittery on me.
This is from HD from a HC3 down converted (camera does this) to SD anamorphic (pal).
I think i have found the solution - and welcome any exra content from more experienced heads than mine.
Of course there are limitations to how far you can slo mo before you get the jitters - anyway- here is my hot tip!
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Hope this helps other relative newbs out there! And if anyone would care to comment on why this works i would be all ears!

I know what you mean, I end up with an extra frame if I set an in and out point then insert/overwrite replace or superimpose.
I find the quickest work flow is to
0. mark the in point at start of clip
1. copy the clip, command c
2. go to the end of the sequence, end
3. paste clip
4. change speed, look at duration of clip, change speed %, command j
5. change duration back to original duration,
6. cut clip from end of time line,
7. return to in point and paste clip.
I find this does give me control over the clip, does not affect the timeline and is frame accurate.
I agree you should be able to change the clip speed without affecting the duration.
The alternative is as Andy described, fit to fill, here is an alternitive way of doing/describing this process;
adjust the out point of the clip to the new point you want,
move the clip out of the space on the timeline where you want the clip with the speed change to go,
place the CTI in the space where you want the new clip to go,
double click on the clip you want to adjust, opening it in the viewer,
drag the clip from the viewer to the canvas and the fit to fill option will appear along with all of the other options,
this will also do what you want, I believe there is no one click solution.
Someone please prove me wrong! I would love to be able to "command j" in to the speed dialog box, click on a check box that says keep duration or in/out points and simply change the duration.
Tony

Best way to export clips with effects, like project manager

First of all I would like to say hello to everybody, cause this is my first post, thanks in advance for your help.
The problem:
I'm running adobe premiere pro cs06 on a mac and what I want to do seems simple but is very difficult. I import material from an Alexa camera, putting all the clips to the timeline and add some effects to the clips, too.
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So the goal is an easy way to add effects and export same as source?!
Again thank you very much
Cheers
Bird

Thank you for your answers so far,
First I dont want to export to the arriraw format, what I want to export to is prores444. The reason why is simply because there are some effekts that might speed up my workflow, let me explain:
Most jobs I do the following, I work as a DIT and colorcorrect footage from lots of cameras on set and export them to any kind of codec using davinci resolve.
The most time consuming progess is the neutralizing of all the different camera models..
With plugins like re:match from re:vision it could save me some time, due to its good auto correction, which would give me a good starting point for my further colorcorrection.
But in order to be faster than my normal way, I need to have some auto or same as source export funktion. Although when the clips match the original metadata I will have no problems in the later stages of my workflow.

Adobe Media Encoder CS4 Causing Jerky Playback with Speed Changes

Here is an Matrox AVI that was captured in Adobe Premiere Pro CS4. Watching the edited clip with a speed change of 600% looked fine when played in Premiere Pro CS4.
When I export the clip using Adobe Media Encoder CS4 as MPEG2 Blu-ray with a preset of 1440 x 1080i High Quality playback is very jerky. An export of the same clip with normal speed looks great??
Any suggestions would be greatly appreciated
Thanks
Type: Matrox AVI
File Size: 119.9 MB
Image Size: 1440 x 1080
Pixel Depth: 24
Frame Rate: 29.97
Source Audio Format: 48000 Hz - 16 bit - Stereo
Project Audio Format: 48000 Hz - 32 bit floating point - Stereo
Total Duration: 00;00;36;27
Average Data Rate: 3.2 MB / second
Pixel Aspect Ratio: 1.3333
Codec Type: MPEG-2 IBP
Bit Depth: 8
Scan Mode: Interlaced - Upper Field First
Actual Image Size: 1440 x 1080
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Case: Coolmaster-830
Op System: Vista Ultima 64 Bit
Edit Suite: Adobe Creative Suite 4 Production Premium Line Upgrade
Adobe Premiere Pro CS 4.0.1 update before installing RT.X2 Card and 4.0 tools
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Have you ever upgraded Adobe Premiere Pro in the middle of a project?
By the way I captured the same clip in Adobe software only mode using HDV as a capture settings. The editing mode is Adobe HDV 1080i, 29.97 frames. The results are also jerky. When I render the clip captured it is also very grainy??
Type: MPEG Movie
File Size: 196.4 MB
Image Size: 1440 x 1080
Pixel Depth: 32
Frame Rate: 29.97
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Average Data Rate: 3.2 MB / second
Pixel Aspect Ratio: 1.3333
Thanks for responding so quickly!

Clips with speed change freeze upon export

When previewing my finished movie in FCP everything looks great, but when I export it all clips with a speed change - constant not variable - freeze up on a single frame. I cannot figure this out, any ideas? Thanks.

Export Directly from Final Cut, using *Quicktime Conversion:*
Click Options...
*VIDEO settings*
COMPRESION: H264
Quality HIgh
Key frame rate 24
Bitrate 1000
frame reordering YES
encoding mode: Multipass
Dimensions 320 x 240
SOUND
AAC, 32 Khz (good or normal)
Perhaps this will help... ( I do a lot of motion graphics in final cut and use this for sending for client approvals...) for bit rate I usually use 650 to 850, but I saw in the Compresser web settings, bitrate was 1000...
ALSO< is your original video interlaced? If so, try checking off option De Interlace (in size) or vice versa...

Disturbed Audio with long clips and speed changes.

Hello,
I experienced a strange problem in FinalCut Pro (v 6 and 7).
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-I speed down the clip at 36% by changing the clip's speed in the sequence.
When I render the audio track, I get completely distorted audio after some minutes until the clip's end.
The problem doesn't seem to occur when I put the clip in a sequence and nest that sequence into a second one and change the nested sequence's speed.
Is that a known bug? Did anyone out there experience the same problem? Is there any technical explanation and solution?
Message was edited by: weisseruebe

Both Picture Safe and Title Safe are guidelines. They were developed to ensure that titles and pictures placed within these guides would be viewable on most televisions.
In the same way that no two tv's will look the same with regard to colour, there can also be a great difference in overall picture placement on the screen. Keeping titles within the safe area will help ensure that even the most poorly calibrated set will still show the entire title.
You can't convert the MP4s because you do not own the right to use them.
As for the MP3's, time to do some work and look it up. The Search function here is a great resource.
rh

Issues with speed changing on clips

i have a issue with speeding up clips. ive exported a slideshow and them imported it into imovie but noticed it was a bit too long..i tried speeding up the clip but when i do and try to play the clip it just shows a black screen..however if i hit backspace and revert it back to original it plays fine..any ideas whats going on? this is soo frusterating to go back and for between the two programs and be off by a few seconds? ?thanks

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Best way to change speed of clips

Hey, I want to change speed of clips, both faster and slower in one clip. What is the best way to do that preserving the quality? I am still learning FCP so my apologies, and I had a hard time finding anything on here through search.

Jerry's right...
Take a look at this:
http://homepage.mac.com/captmench/SlowMo3.mov
Two frames each of FCP and Shake at 50%. Use your arrow keys to go frame by frame. First frame is normal, second is interpolated. Look at the background!!
Creative cow should have the whole tutorial online soon... I'll post back with the link when they do.
Also, for time remap -- shake's got that under control too... but for now, look at this:
http://www.proapptips.com/proapptipsvideotutorials/879F6B61-CFF9-4FD1-8D43-FDF89 605611A/D95A1854-BE2C-46A6-A064-FA0A2306E254.html
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How do You Make Accurate Speed Changes To Clips?

How do you apply a speed change to an audio clip in with frame accuracy? I have 2 audio clips, one from a camera and the other from a cheap solid-state recorder. The latter has audio drift and needs a one-off, constant adjustment to sync it with the camera audio.
However, FCP only wants to execute clip speed changes down to 1/10th of 1%, which is not small enough. Does anyone know what to do here - either within FCP or Sountrack Pro? Thanks.

I just know that often when capturing long segments of DV tape for our shows, we occasionally get a clip that comes in at 47.998 or 48.002, instead of the solid 48kHz.
When I export to aiff, it seems to clear up any sync drifting we experience with the original clips.
Might give it a go.
STPro is a solid option as others pointed out. I simply suggested a quick fix to a possible sync/drift issue. (quicker than learning a new interface...though that's something that should be done anyway, for the tools STPro offers).
K

Export EDL or XML for seq with speed change

Hi,
I am trying to export an EDL or XML of a 30 sec sequence of 10 clips. 5 of them have speed change. Basic speed change, not variable. They are UC 10bit from a DigiBeta captured with a Kona 2.
The problem is that the exported EDL or XML doesn't get the right clips in and out points for recapture on other systems. Any clue?

As long as there are speedchanges in the sequence, FCP will screw the EDL timecodes for source clip in/out and position in the timeline....and it's way off.
And the problem is not with Flame, if I open the XML or EDL in TextEdit, I see the TC mistakes. We do that all the time with the Avid MC and it works very well. Even if the speed changes wouldn't go through, I would expect clips coordonates and in/out to be ok.

Problem with speed change in Twixtor Pro

Using Twixtor 5.0 and After Effects CS6, and I'm struggling with a situation where keyframing the Speed% change causes the slow frames to freeze for several frames at a time.
What works:
Drop clip into new comp
Enable Time-remaping, and extend the length of the comp to a good minute or so longer than source clip
Add Twixtor Pro to clip layer (appears to behave the same if you drop this comp into another clip and apply to that)
Set frame rate to match comp's (and clips)
Set speed% to something low, like 5.
Clip plays back nice and smooth and slow, every frame is interpolated.
What doesn't work:
Repeat above steps... up to 5
Set a keyframe for speed% to 1000
Advance playhead ahead a second, set another keyframe to maintain speed
Move several frames, set keyframe for speed% to 5
When I playback the clip, after the last speed change, instead of nice smooth motion, I get a still frame, then several identical frames, then it jumps again to the next incremental frame, and so on – with NO smooth interpolated frames. The result, as you can guess, is quite jerky.
If you trash all the keyframes and just leave the speed change to 5, it plays totally smooth. Which is just great, except for the fact I want to actually animate it.
Has anyone encountered this?
In the meantime as a backup, I'm using Timewarp, but I would love to sort this out.

Hi Rick, I appreciate your persistence to help. That's definitely another way to use the plugin which I've never used in the past, but does eliminate the need to enable time-remapping. Certainly not as common as the majority of the tutorials out there, including Re:Vision's own.
For the sake of argument I tried this approach, but unfortunately the problem persists. Out of curiosity, were there specific problems you avoided by using the solid method vs applying directly to the footage?
If I can dig up my serial numbers I will install the CS6 update as instructed. I'll definitely update this post if I get any positive results.
UPDATE:
I'm pleased to say upgrading to 5.1.5 fixed the problem!

Compressor encoded speed change clip with echo as motorboat sound

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