[Shawn Hyper]

Oh, FCP needs pre-roll too!? I just thought on computer any application has super fast random access to datas.

As for us, none of the offset settings will work. BTW, the audio of the first frame is also duplicated.

I just wonder how those people using only FCP will do the edit to tape operation, especially when the timecode is strictly required by the broadcasters.

Too Many Standards = No Standard = Chaos
FCP7, Mac OSX 10.7.4, BMD Multibridge Extreme
Pro Tools HD 1 v 8.1cs1

[Shawn Hyper]

Thanks for reply.

But when edit to tape with FCP, there is pre-roll on the tape deck for speeding-up.

Too Many Standards = No Standard = Chaos
FCP7, Mac OSX 10.7.4, BMD Multibridge Extreme
Pro Tools HD 1 v 8.1cs1

[Shawn Hyper]

Try audio filter “compressor” if you can find one in your list.
Google the method of usage.

Too Many Standards = No Standard = Chaos
FCP7, Mac OSX 10.7.4, BMD Multibridge Extreme
Pro Tools HD 1 v 8.1cs1

[Shawn Hyper]

Got it. Thanks a lot for your patient explaination.

Too Many Standards = No Standard = Chaos
FCP7, Mac OSX 10.7.4, BMD Multibridge Extreme
Pro Tools HD 1 v 8.1cs1

[Shawn Hyper]

[Rafael In a CRT computer you are seen just on single dot of light moving very fast from left to right and from tot to down. Is one single beam of electrons what hits one phosphor at a time. Is our eyes/brain what makes us to see a full picture.

Yes, agree. But CRT monitor does not scan the whole frame from top to bottom line by line. It will scan the odd field lines first then the even field lines, right? Is so, there’s time difference between the updating of the two field, 1/50 second in PAL. Then, while the CRT monitor updating odd filed lines, here the object is away from origional position, the even field lines are not updated, here the object is still at origional position.

Too Many Standards = No Standard = Chaos
FCP7, Mac OSX 10.7.4, BMD Multibridge Extreme
Pro Tools HD 1 v 8.1cs1

[Shawn Hyper]

[Rafael Amador ]In an interlaced monitor you never see two fields at the same time.

Totally agree and that’s the key point.

Suppose an object does not move at frame 1, there’s no jagged edge. Then at frame 2, the object moves. The interlaced dispaly device refreshes the odd field lines first, and in this field the object has moved away from origional position, but at the same time the even field lines are waiting to be refreshed, in this field the object is still at origional position. If the object is moving slowly, the displacement between the fileds may be too small to be noticed, otherwise comes jagged edge.

Above is my personal thought.

Too Many Standards = No Standard = Chaos
FCP7, Mac OSX 10.7.4, BMD Multibridge Extreme
Pro Tools HD 1 v 8.1cs1

[Shawn Hyper]

Thanks for reply.

As for our case, when the object on screen is moving slowly, there’s no jagged edge can be noticed. But when the object is moving fast, jagged edge occurs.

BTW, I have found an interesting tutorial which discribes such case using gif animation. The link is below:

https://neuron2.net/LVG/interlacing.html

Please check the “Progressive video on an interlaced display” gif demo.

Too Many Standards = No Standard = Chaos
FCP7, Mac OSX 10.7.4, BMD Multibridge Extreme
Pro Tools HD 1 v 8.1cs1

[Shawn Hyper]

Just have another question.

The raw materials are progressive, such as rendered 3D animation, after editing completed, the progressive sequence will be exported to a interlaced format, such as Digi Beta or even DV codec. Does the whole sequence need to be interlaced first? It seems that there’s no such need, is it right?

Thanks in advance.

Too Many Standards = No Standard = Chaos
FCP7, Mac OSX 10.7.4, BMD Multibridge Extreme
Pro Tools HD 1 v 8.1cs1

[Shawn Hyper]

For automatical audio level adjustment, audio compressor, which has nothing to do with codec, is the solution. It will lower ,hence compress,the level of loud parts, has no effect on soft parts, thus reduce the difference between loud and soft parts, then add some gain to all the parts, now soft parts will become louder, and compressed loud parts will kind of return to origional level.

I do audio editing on another platform, so don’t know the exact audio filter in FCP. Normally you will insert the audio filter compressor at the audio output bus, since it will compress all the audio tracks, or you have to insert a audio compressor per audio track. The parameter settings depend on the actural audio parts, can’t give exact settings here.

BTW, it would be better to add another audio filter called limiter behind compressor, for the sake of audio clipping if you add too much gain in compressor.

Too Many Standards = No Standard = Chaos
FCP7, Mac OSX 10.7.4, BMD Multibridge Extreme
Pro Tools HD 1 v 8.1cs1

[Shawn Hyper]

Thanks a lot. I have learned a lot from you.

BTW, below is my signature. 😉

Too Many Standards = No Standard = Chaos
FCP7, Mac OSX 10.7.4, BMD Multibridge Extreme
Pro Tools HD 1 v 8.1cs1