Help - Broadcast Standards from Comcast! at DVinfo.net

Sam Renkin · June 23rd, 2011, 08:04 PM

I could really use some help as I've been beating my head on the desk for a full day. I'm a videographer and Vegas Pro 9d user. I shot and edited a 30-second spot for a client who has signed a contract with the regional Comcast office to air the spot starting on Saturday. I need to upload the file to their FTP site, but the rendering guidelines they've provided don't seem to match any of the render settings in Vegas. From Comcast:

HD Resolution options: 1080i = 1920 X 1080 @ 29.97 frames/sec. 720p = 1280x720 @ 59.94 frames/sec
Codecs: MPEG-2 Transport Stream, Apple ProRes 422, Avid DNxHD 145 (8bit), H.264
Interlacing: All 1080i should be upper/top field first; All 720p should be progressive.
Chroma: 4:2:2
Audio Sample Rate: 48 KHz, 16bit, dual channel audio,
Bit rate: 45 Mbs – lower bit rates may result in poor quality.

They're expecting a Quicktime file size between 400-600MB, and an MPEG-2 file size between 40-150MB.

I shot with my Sony Z5 in 1080/30p mode. I can render the file in a variety of formats, but none seem to offer a 45Mbs constant bit rate or an option to take the frame rate to 59.94. I know the differences between MOV, MP4 and MPEG-2, but I don't know if AVC/MP4 is equivalent to H.264?

If you have experience with these settings, please let me know - I need to resolve quickly! Thanks -

Sam

Leslie Wand · June 23rd, 2011, 10:12 PM

Avid DNxHD - free download.

Bill Grant · June 23rd, 2011, 10:43 PM

Sam you just manually set your settings. The High bitrate is manually set in the preset itself. For our local CBS affiliate, I have to use a H.264 instead of quicktime because their system doesn't like my quicktime. It's all a process.
Bill

Jerry Amende · June 24th, 2011, 02:34 PM

Quote:

Originally Posted by Leslie Wand

Avid DNxHD - free download.

Just to save Google search, here's the URL: Avid - Avid QuickTime Codecs LE 2.3.4 Download

...Jerry

Sam Renkin · June 26th, 2011, 04:06 PM

Leslie and Jerry, thanks for recommending the codecs from Avid, and I feel silly for asking this question: how do I integrate that into my Vegas workflow? Thanks again -

Sam

Jerry Amende · June 26th, 2011, 05:35 PM

Sam,

See if this helps. First, download & install the codec. Then configure a template as shown in the attached image. Save the template and render.

...Jerry

Sam Renkin · June 27th, 2011, 10:01 AM

Thanks Jerry! I'm on it now.

June 23rd, 2011, 08:04 PM	#1
Sam Renkin Major Player Join Date: May 2008 Location: Atlanta GA Posts: 211	Help - Broadcast Standards from Comcast! I could really use some help as I've been beating my head on the desk for a full day. I'm a videographer and Vegas Pro 9d user. I shot and edited a 30-second spot for a client who has signed a contract with the regional Comcast office to air the spot starting on Saturday. I need to upload the file to their FTP site, but the rendering guidelines they've provided don't seem to match any of the render settings in Vegas. From Comcast: HD Resolution options: 1080i = 1920 X 1080 @ 29.97 frames/sec. 720p = 1280x720 @ 59.94 frames/sec Codecs: MPEG-2 Transport Stream, Apple ProRes 422, Avid DNxHD 145 (8bit), H.264 Interlacing: All 1080i should be upper/top field first; All 720p should be progressive. Chroma: 4:2:2 Audio Sample Rate: 48 KHz, 16bit, dual channel audio, Bit rate: 45 Mbs – lower bit rates may result in poor quality. They're expecting a Quicktime file size between 400-600MB, and an MPEG-2 file size between 40-150MB. I shot with my Sony Z5 in 1080/30p mode. I can render the file in a variety of formats, but none seem to offer a 45Mbs constant bit rate or an option to take the frame rate to 59.94. I know the differences between MOV, MP4 and MPEG-2, but I don't know if AVC/MP4 is equivalent to H.264? If you have experience with these settings, please let me know - I need to resolve quickly! Thanks - Sam

June 23rd, 2011, 10:12 PM	#2
Leslie Wand Trustee Join Date: Mar 2004 Location: upper hunter, australia Posts: 1,410	Re: Help - Broadcast Standards from Comcast! Avid DNxHD - free download. __________________ www.lesliewand.com.au

June 23rd, 2011, 10:43 PM	#3
Bill Grant Major Player Join Date: May 2005 Location: Columbia,SC Posts: 806	Re: Help - Broadcast Standards from Comcast! Sam you just manually set your settings. The High bitrate is manually set in the preset itself. For our local CBS affiliate, I have to use a H.264 instead of quicktime because their system doesn't like my quicktime. It's all a process. Bill __________________ Cinema Couture www.cinemacouture.com

June 26th, 2011, 04:06 PM	#5
Sam Renkin Major Player Join Date: May 2008 Location: Atlanta GA Posts: 211	Re: Help - Broadcast Standards from Comcast! Leslie and Jerry, thanks for recommending the codecs from Avid, and I feel silly for asking this question: how do I integrate that into my Vegas workflow? Thanks again - Sam

June 26th, 2011, 05:35 PM	#6
Jerry Amende Regular Crew Join Date: Aug 2010 Location: Wilmington, DE Posts: 129	Re: Help - Broadcast Standards from Comcast! Sam, See if this helps. First, download & install the codec. Then configure a template as shown in the attached image. Save the template and render. ...Jerry Attached Thumbnails

June 27th, 2011, 10:01 AM	#7
Sam Renkin Major Player Join Date: May 2008 Location: Atlanta GA Posts: 211	Re: Help - Broadcast Standards from Comcast! Thanks Jerry! I'm on it now.