FS-C with XH-A1. Audio sync issue. at DVinfo.net

Ross Jones · September 25th, 2008, 07:52 PM

First FS-C use recently. Shot HDV 60i.
After ingesting the QT files into FCP, I noticed that there seems to be a 2 frame sync problem. To get video in sync with the audio, I need to slip the video back by 2 frames..
Seems to be consistent over all clips; anyone else come across this? Any idea why this happening?
Reviewing what's on tape: all looks fine. Sync issue is only on the QT files from the FS-C
Thx, Rgds, Ross.
~~~~~~~~~~~~~~~

Harry Bromley-Davenport · September 25th, 2008, 09:41 PM

I reckon it's more like 3 or 4 frames.

Doesn't bother me. I just slip the sound forwards.

Harry

Ross Jones · September 26th, 2008, 09:53 AM

...any idea why it's doing this..?

I have emailed Focus Enhancements with the question, but no reply as yet..
Rgds,
Ross.
~~~~~~~~~~~~~~~

Harry Bromley-Davenport · September 26th, 2008, 12:10 PM

I doubt that you will get an answer from Focus because they have just gone bankrupt.

As for "why?" -- I have no idea and no interest. I asjust the sync. It's simple.

H.

Jonas Hamilton · November 11th, 2008, 04:46 PM

My company recently purchased 2 FS-C units for use with Canon XH-A1 and XL-H1s cameras. We shoot with 1080/60 Non-Drop mode with Quciktime HD. We haven't seen or heard the syc issue you are describing.

A quick test is to record a QT HD clip while you drop a golf ball in front of the lens a few times and then check the clip in the Final Cut Pro timeline. When doing this test, you will see the audio and video in sync, according to the ball's placement.

Wish I had more to offer, but I'm at a loss as to why your clips are not in sync.

Are you in Drop-Frame mode by any chance?

BTW -- I recently spoke with Focus and sent in one of my FS-100 units for repair (unit was dropped, our fault, not Focus). Not only are they NOT out of business but I recieved excellent service and fast turnaround. Got the FS-100 back and it's as good as new.

Jose Manuel Mahedero · June 12th, 2020, 03:47 AM

tengo focus fs-c con canon xl2 y no consigo que grabe, me podrias indicar como hacerlo, muchas gracias.

September 25th, 2008, 07:52 PM	#1
Ross Jones Regular Crew Join Date: Jul 2004 Location: Harvard, MA Posts: 155	FS-C with XH-A1. Audio sync issue. First FS-C use recently. Shot HDV 60i. After ingesting the QT files into FCP, I noticed that there seems to be a 2 frame sync problem. To get video in sync with the audio, I need to slip the video back by 2 frames.. Seems to be consistent over all clips; anyone else come across this? Any idea why this happening? Reviewing what's on tape: all looks fine. Sync issue is only on the QT files from the FS-C Thx, Rgds, Ross. ~~~~~~~~~~~~~~~ __________________ XH-A1; HV-20; Miller DS-10; Manfrotto 695/3229; SD302/702; PCM-D50; FCS2; MacPro; 2.25TB

September 26th, 2008, 09:53 AM	#3
Ross Jones Regular Crew Join Date: Jul 2004 Location: Harvard, MA Posts: 155	Audio out of sync ...any idea why it's doing this..? I have emailed Focus Enhancements with the question, but no reply as yet.. Rgds, Ross. ~~~~~~~~~~~~~~~

June 12th, 2020, 03:47 AM	#6
Jose Manuel Mahedero New Boot Join Date: Feb 2020 Location: Trapaga (España) Posts: 13	Re: FS-C with XH-A1. Audio sync issue. tengo focus fs-c con canon xl2 y no consigo que grabe, me podrias indicar como hacerlo, muchas gracias.

September 25th, 2008, 09:41 PM	#2
Harry Bromley-Davenport Major Player Join Date: Dec 2004 Location: LA CA Posts: 317	I reckon it's more like 3 or 4 frames. Doesn't bother me. I just slip the sound forwards. Harry

September 26th, 2008, 12:10 PM	#4
Harry Bromley-Davenport Major Player Join Date: Dec 2004 Location: LA CA Posts: 317	I doubt that you will get an answer from Focus because they have just gone bankrupt. As for "why?" -- I have no idea and no interest. I asjust the sync. It's simple. H.

November 11th, 2008, 04:46 PM	#5
Jonas Hamilton New Boot Join Date: Oct 2008 Location: Austin, TX Posts: 13	My company recently purchased 2 FS-C units for use with Canon XH-A1 and XL-H1s cameras. We shoot with 1080/60 Non-Drop mode with Quciktime HD. We haven't seen or heard the syc issue you are describing. A quick test is to record a QT HD clip while you drop a golf ball in front of the lens a few times and then check the clip in the Final Cut Pro timeline. When doing this test, you will see the audio and video in sync, according to the ball's placement. Wish I had more to offer, but I'm at a loss as to why your clips are not in sync. Are you in Drop-Frame mode by any chance? BTW -- I recently spoke with Focus and sent in one of my FS-100 units for repair (unit was dropped, our fault, not Focus). Not only are they NOT out of business but I recieved excellent service and fast turnaround. Got the FS-100 back and it's as good as new.