Return-Path: Received: from gateway11.websitewelcome.com ([67.18.88.12] verified) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP id 4895371 for AE-List@media-motion.tv; Fri, 09 Nov 2012 21:44:48 +0100 Received: by gateway11.websitewelcome.com (Postfix, from userid 5011) id 4B8BB680421B9; Fri, 9 Nov 2012 14:47:56 -0600 (CST) Received: from gator1184.hostgator.com (gator1184.hostgator.com [174.121.151.98]) by gateway11.websitewelcome.com (Postfix) with ESMTP id 3B4F668042191 for ; Fri, 9 Nov 2012 14:47:56 -0600 (CST) Received: from [24.163.5.74] (port=55310 helo=Neptune) by gator1184.hostgator.com with esmtpa (Exim 4.80) (envelope-from ) id 1TWvUZ-0007Vg-28 for AE-List@media-motion.tv; Fri, 09 Nov 2012 14:47:55 -0600 Reply-To: From: "Stephen van Vuuren" To: "'After Effects Mail List'" References: In-Reply-To: Subject: RE: [AE] AE / FCP Audio Sync Discrepancy Date: Fri, 9 Nov 2012 15:47:51 -0500 Organization: SV2 Studios Message-ID: <00cb01cdbebb$7ca03b90$75e0b2b0$@sv2studios.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00CC_01CDBE91.93CA3390" X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQG/ulCQI5Z5ZC2EmTS9ZFyT60STb5f+AMhA Content-Language: en-us X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator1184.hostgator.com X-AntiAbuse: Original Domain - media-motion.tv X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - sv2studios.com X-BWhitelist: no X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: (Neptune) [24.163.5.74]:55310 X-Source-Auth: stephen@sv2studios.com X-Email-Count: 4 X-Source-Cap: c3RlcGhlbnY7c3RlcGhlbnY7Z2F0b3IxMTg0Lmhvc3RnYXRvci5jb20= This is a multipart message in MIME format. ------=_NextPart_000_00CC_01CDBE91.93CA3390 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Jonathan, I have seen this problem with many round trip projects involving audio with my DCP work that involved FCP in the roundtrip. I don't have 100% confirmation but the error seems to related to the fact the FCP, when export is involved, does NOT use 23.976 for 24p frame rates but has math errors, probably rounding e.g. 23.98 or other rounding errors related to XML and other imports/exports. The only way I've been able to deal with this is to use OMF out of FCP and use that as the audio base which appears to not have the error. Unfortunately for many work flows, that does not work. So I suggest export the video on it's on, without audio from FCP (not clear if this is what you are doing) and the audio as OMF. In my experience, that does let 24p projects sync on round-trip. stephen van vuuren 336.202.4777 http://www.insaturnsrings.com/ http://www.sv2dcp.com/ http://www.sv2studios.com/ A film is - or should be - more like music than like fiction. It should be a progression of moods and feelings. The theme, what's behind the emotion, the meaning, all that comes later. -Stanley Kubrick ------=_NextPart_000_00CC_01CDBE91.93CA3390 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Jonathan,

 

I have seen this problem with many round trip projects involving = audio with my DCP work that involved FCP in the = roundtrip.

 

I don’t have 100% confirmation but the error seems to related = to the fact the FCP, when export is involved, does NOT use 23.976 for = 24p frame rates but has math errors, probably rounding e.g. 23.98  = or other rounding errors related to XML and other imports/exports. The = only way I’ve been able to deal with this is to use OMF out of FCP = and use that as the audio base which appears to not have the error. = Unfortunately for many work flows, that does not = work.

 

So I suggest export the video on it’s on, without audio from = FCP (not clear if this is what you are doing) and the audio as OMF. In = my experience, that does let 24p projects sync on = round-trip.

 

stephen van vuuren

336.202.4777

 

http://www.insaturnsrings.com/=

http://www.sv2dcp.com/<= /b>

http://www.sv2studios.com/<= /span>

 

A film is – or should be – more like music than like = fiction. It should be a progression of moods and feelings. The theme, = what’s behind the emotion, the meaning, all that comes = later.

–Stanley = Kubrick

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