Varying the speed of a clip

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tom hardwick
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Joined: Apr 8 1999

Before I change my perfect Storm (Ray L), I have to know that the new system (HD or SD) has the one ingredient that I use in very nearly all the wedding films I produce.

What's that? Well, it's sweet little program called the Canopus Speed controller. You can tweak it to do all sorts of things to smoothly vary the speed of any given clip, but the two that I find look the best are:

1) Vary the speed from normal down to about 25% and back up to normal again (terrif for the confetti throwing), and

2) vary from normal right down to a full stop. This looks wonderful when used right at the end of the first dance. As the motion creeps to a stop individual fields are dissolved together in incredible smoothness, coming to a halt on ecactly the frame you've chosen out of thousands.

I then extend this last frame as a still and use this to fade out.

I hope Edius, FCP and Vegas all have this facility.

tom.

Alan Craven
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Joined: Jan 26 2001

Last time you told us of the virtues of this speed contoller, Tom, I got hold of it, but I could not get it to work with my non-Canopus system (Pinnacle DV500). I have not tried it since I switched to Matrox RTX100, but I suspect that it will only work with Canopus systems?

I am trying to get my head around Bezier transforms, which I think may be applied to motion effects to give the same effect?

Neither pinnacle nor Matrox appear to offer its equivalent - I just wish they did.

harlequin
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tom , speed controller is not something easily 'duplicated' in edius 3.

it is now part of version 4 according to edius forum.

Gary MacKenzie

sepulce@hotmail.com ( an account only used for forum messages )

Thinkserver TS140 , 750ti Graphics card  & LG 27" uws led backlight , Edius 8

Humax Foxsat HD Pvr / Humax Fox T2 dvbt

harlequin
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Alan Craven wrote:
Last time you told us of the virtues of this speed contoller, Tom, I got hold of it, but I could not get it to work with my non-Canopus system (Pinnacle DV500). I have not tried it since I switched to Matrox RTX100, but I suspect that it will only work with Canopus systems?

I am trying to get my head around Bezier transforms, which I think may be applied to motion effects to give the same effect?

Neither pinnacle nor Matrox appear to offer its equivalent - I just wish they did.

it alters canopus avi files ........
it works well with canopus avi files .......

it is not meant to alter any other codecs avi files .

Gary MacKenzie

sepulce@hotmail.com ( an account only used for forum messages )

Thinkserver TS140 , 750ti Graphics card  & LG 27" uws led backlight , Edius 8

Humax Foxsat HD Pvr / Humax Fox T2 dvbt

PaulD
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Joined: Aug 31 2002
tom hardwick wrote:
I hope Edius, FCP and Vegas all have this facility.

Hi
FCP has total control of speed ramping. As in life however absolute power has a steep learning curve, and therefore there are a number of pay-for plugins that greatly simplify/enhance the process.
Coupled with Shake at £329 (the Lord Of The Rings trilogy effects software) which has Optical Flow vector motion transform capabilities there isn't much that can't be achieved :)

mooblie
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While we're on the subject, Paul (and I'm sure Tom is interested) what would you suggest investigating for FCP speed ramping plug-ins?

The ones I've come across all seem unnecessarily complex or unintuitive (very un-Mac-like).

Martin - DVdoctor in moderation. Everyone is entitled to my opinion.

PaulD
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Joined: Aug 31 2002

Hi
Twixtor seems to be the most highly regarded but comes at an appropriate price :(
The one I use is Joe's Time Bender (because Apple gave that away free a while ago) but it only does slo-mo, not speed-ups.

harlequin
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if it only allows you to slow a clip down would the following not work

1. reverse clip
2. slo-mo
3. reverse that clip

Gary MacKenzie

sepulce@hotmail.com ( an account only used for forum messages )

Thinkserver TS140 , 750ti Graphics card  & LG 27" uws led backlight , Edius 8

Humax Foxsat HD Pvr / Humax Fox T2 dvbt

PaulD
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Joined: Aug 31 2002

Hi
NLE editing is always about workarounds ;) Time Bender's slo-mo can be gradually speed ramped in either direction to or from a standstill. On its own FCP does slower (with either gradient) or faster (25 fps+). Actually you can't do one without the other, although the one you don't want can be invisible, masked by another clip (more workaround)...

Alan Roberts
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Joined: May 3 1999

Exdius4 doesn't need a kludge or work-around. It has a really nifty speed-mapper. You set the speed graphically, including ramping, at the front and back of the clip. Richard Payne showed me (on my nice new laptop) and he managed to get a clip of traffic to gently accelerate backwards then shoot forwards like being launched from a bow and arrow. And all that without entering any numbers and you see it before rendering. That was one of a basket of things that convinced me to buy the beast.

Get my test cards document, and cards for 625, 525, 720 and 1080. Thanks to Gavin Gration for hosting them.
Camera settings documents are held by Daniel Browning and at the EBU
My book, 'Circles of Confusion' is available here.
Also EBU Tech.3335 tells how to test cameras, and R.118 tells how to use the results.

fuddam
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Joined: Nov 19 2005

Vegas angle: control speed with velocity envelope. Right click on video allows one to choose such. Creates line across the clip. Can then double click anywhere to keyframe, and drag the keyframes up for acceleration, and down for deceleration / reverse.

very easy / fast.

can freeze frame same method, change speeds up to 300% immediately, and render to AVI in order to apply same again, ie no limit on speed.

also, right click clip for complete reversal.

:)

tom hardwick
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Joined: Apr 8 1999

Ah, so my original line. ' I hope Edius, FCP and Vegas have this' has been answered. Edius and Vegas it is, then.

ng598
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Joined: Sep 26 2005

The problem I find with Vegas (6.0d) is that if the clip is reversed I got a flickery effect. I've tried swapping the field order but have never managed to eliminate this.

fuddam
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Joined: Nov 19 2005

I dunno. Have 5b myself. Just ran a reversal on a 60 sec clip, rendered it out to AVI, and no problemo there

:)

am looking forward to v7 next month. time I upgraded.

Alan Roberts
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Joined: May 3 1999

I've been messing about with Edius4, and am getting much more impressed with it by the day. And to my delight, it imports/exports graphics as is (i.e. doesn't change the coding range) so I can use it as an engineering tool. With luck, that'll remain true with the upgrade to Broadcast (which does DVCProHD, HDCAM P2 etc). :)

Get my test cards document, and cards for 625, 525, 720 and 1080. Thanks to Gavin Gration for hosting them.
Camera settings documents are held by Daniel Browning and at the EBU
My book, 'Circles of Confusion' is available here.
Also EBU Tech.3335 tells how to test cameras, and R.118 tells how to use the results.