avoiding conforming audio? at DVinfo.net

Robert Bobson · July 23rd, 2011, 07:05 AM

is there a format to record audio in that Adobe can use without conforming - so it doesn't need to "conform" audio after import?

Paul R Johnson · July 23rd, 2011, 07:31 AM

In most cases it's just the time it takes to split off the audio file and build the visual image. Importing an audio file takes a little less time to conform - but Sony Sound forge takes very similar times to build up the visual image file. I guess it's just having to read the data, and it takes a while.

It's quite short a time - are you having really long-winded ones?

Robert Bobson · July 23rd, 2011, 07:49 AM

no, doesn't take all that long. just thought I could save a "conversion step" - if that's what it was doing.

thanks for your input

Bart Walczak · July 23rd, 2011, 12:54 PM

There are two things that can be happening:

1. Premiere building a waveform (peak) file for presentation purposes. No conversion is going on.
2. Premiere actually converting the audio to 32-bit 48kHz for best performance.

With most formats only 1 is going on.

Ann Bens · July 23rd, 2011, 06:28 PM

If you could turn it off, but you can't, you would not have a waveform.

Marcello Mazzilli · October 10th, 2012, 10:42 AM

HI,
I have loads of MXF that have 8 audio tracks.. and it takes ages to conform !
I don't need any of the audio tracks.. Is there a way to avoid conforming in Premiere? I don't need audio from these files !
Thanks, M

Robert Bobson · October 10th, 2012, 11:18 AM

Can you capture "video only"? (you choose this in your Capture window)

Marcello Mazzilli · October 10th, 2012, 11:24 AM

I am not capturing on my machine... These files come from another company... It is broadcast footage from 4 cameras and comes from another company that gives me the files on an external disk.
I just need to stop conforming or, if not possible, to remove audio tracks from the MXF files.
Some footage I have in AVI format wit ha single stereo track and takes much less.. Still If I find a way of NOT IMPORTING audio it will be even better !

Steve Wolla · October 18th, 2012, 03:34 PM

What do you want to do with the audio, in the end?

If you have a long clip, and you know there's some junk you do not want at the beginning and end, just cut that stuff off right away, then it will not take as long to conform.

If you don't even want to copy the audio over with the video, the next best thing would be to drop your clip on the timeline, select it, go to Clip, go to Unlink, then delete the audio.

Marcello Mazzilli · October 18th, 2012, 05:10 PM

I need ALL the video and NONE of the audio.. but as far as I understand it will still go on conforming even if I unlink and throw away audio.. Conforming goes with the clip being in the Project Bin even if not actually used in the timeline.. Maybe I got it wrong but that is how it seems to work

Steve Wolla · October 18th, 2012, 08:51 PM

I just did a little test, and yeah you're right about that. Never mind...
I guess you'll just need to let it conform.

Taky Cheung · October 21st, 2012, 11:07 PM

It's really annoying Adobe adopted the audio conforming process. It upconvert all audio to 32-bit for the efficient floating point CPU calculation. Drawing the wave display is another process called Peak file.

In most cases it is fine as it seems the conforming is running behind the scene. However, it generate huge temp files that won't be deleted automatically. In times, there're lots of those temp files in the media cache folder specified in Preferences. Also, for working on huge project, audio conforming would take a long time before someone can actually start editing.

Many times Adobe didn't do a good job in the conforming audio process. Sometimes it will goes into a loop on conforming. If that happens, need to delete all the .CFA files then let premiere re-confirm at the next project start up. Don't touch or do anything before the conforming is complete finished.

Marcello Mazzilli · October 22nd, 2012, 12:47 AM

Premiere, compared to Final Cut 7 for example.. doesn't need to render audio once you are working.... I guess this is a feature that needs this conforming before.. But.. somebody should take it as a suggestion... why not give me the option to import VIDEO ONLY clips... MXF can have 8 or 16 audio tracks and sometimes these are useless !

Taky Cheung · October 22nd, 2012, 10:15 AM

Premiere still render audio before previewing. Say like, if you change the speed of the clip but retain pitch. In that case, premiere will render the audio before previewing the timeline.

Marcello Mazzilli · October 25th, 2012, 05:09 AM

SUre... audio will render if effected..but not touching volumes etc...

I hate this conforming.... Everytime I plus in the drive (I use a dock) it does the conforming again.... Like in a PC when it changes the drive letter... It's almost impossible to work this way.... And the worst thing is that I don't even need audio !
M

July 23rd, 2011, 07:05 AM	#1
Robert Bobson Major Player Join Date: Feb 2003 Location: Bay City, Michigan Posts: 585	avoiding conforming audio? is there a format to record audio in that Adobe can use without conforming - so it doesn't need to "conform" audio after import?

July 23rd, 2011, 07:31 AM	#2
Paul R Johnson Inner Circle Join Date: Nov 2005 Location: Lowestoft - UK Posts: 4,045	Re: avoiding conforming audio? In most cases it's just the time it takes to split off the audio file and build the visual image. Importing an audio file takes a little less time to conform - but Sony Sound forge takes very similar times to build up the visual image file. I guess it's just having to read the data, and it takes a while. It's quite short a time - are you having really long-winded ones?

July 23rd, 2011, 07:49 AM	#3
Robert Bobson Major Player Join Date: Feb 2003 Location: Bay City, Michigan Posts: 585	Re: avoiding conforming audio? no, doesn't take all that long. just thought I could save a "conversion step" - if that's what it was doing. thanks for your input

July 23rd, 2011, 12:54 PM	#4
Bart Walczak Major Player Join Date: Apr 2006 Location: Warsaw/Poland Posts: 716	Re: avoiding conforming audio? There are two things that can be happening: 1. Premiere building a waveform (peak) file for presentation purposes. No conversion is going on. 2. Premiere actually converting the audio to 32-bit 48kHz for best performance. With most formats only 1 is going on. __________________ Creative Impatience - The Solace of Simple Solutions. A few useful plugins for Adobe users, and my remarks on the tools and the craft in general.

July 23rd, 2011, 06:28 PM	#5
Ann Bens Major Player Join Date: Jun 2007 Location: The Netherlands Posts: 710	Re: avoiding conforming audio? If you could turn it off, but you can't, you would not have a waveform.

October 10th, 2012, 10:42 AM	#6
Marcello Mazzilli Major Player Join Date: Apr 2009 Location: ITALIA Posts: 416	Re: avoiding conforming audio? HI, I have loads of MXF that have 8 audio tracks.. and it takes ages to conform ! I don't need any of the audio tracks.. Is there a way to avoid conforming in Premiere? I don't need audio from these files ! Thanks, M

October 10th, 2012, 11:18 AM	#7
Robert Bobson Major Player Join Date: Feb 2003 Location: Bay City, Michigan Posts: 585	Re: avoiding conforming audio? Can you capture "video only"? (you choose this in your Capture window)

October 10th, 2012, 11:24 AM	#8
Marcello Mazzilli Major Player Join Date: Apr 2009 Location: ITALIA Posts: 416	Re: avoiding conforming audio? I am not capturing on my machine... These files come from another company... It is broadcast footage from 4 cameras and comes from another company that gives me the files on an external disk. I just need to stop conforming or, if not possible, to remove audio tracks from the MXF files. Some footage I have in AVI format wit ha single stereo track and takes much less.. Still If I find a way of NOT IMPORTING audio it will be even better !

October 18th, 2012, 03:34 PM	#9
Steve Wolla Major Player Join Date: Nov 2005 Posts: 477	Re: avoiding conforming audio? What do you want to do with the audio, in the end? If you have a long clip, and you know there's some junk you do not want at the beginning and end, just cut that stuff off right away, then it will not take as long to conform. If you don't even want to copy the audio over with the video, the next best thing would be to drop your clip on the timeline, select it, go to Clip, go to Unlink, then delete the audio.

October 18th, 2012, 05:10 PM	#10
Marcello Mazzilli Major Player Join Date: Apr 2009 Location: ITALIA Posts: 416	Re: avoiding conforming audio? I need ALL the video and NONE of the audio.. but as far as I understand it will still go on conforming even if I unlink and throw away audio.. Conforming goes with the clip being in the Project Bin even if not actually used in the timeline.. Maybe I got it wrong but that is how it seems to work

October 18th, 2012, 08:51 PM	#11
Steve Wolla Major Player Join Date: Nov 2005 Posts: 477	Re: avoiding conforming audio? I just did a little test, and yeah you're right about that. Never mind... I guess you'll just need to let it conform.

October 21st, 2012, 11:07 PM	#12
Taky Cheung Inner Circle Join Date: May 2007 Location: Los Angeles, USA Posts: 2,114	Re: avoiding conforming audio? It's really annoying Adobe adopted the audio conforming process. It upconvert all audio to 32-bit for the efficient floating point CPU calculation. Drawing the wave display is another process called Peak file. In most cases it is fine as it seems the conforming is running behind the scene. However, it generate huge temp files that won't be deleted automatically. In times, there're lots of those temp files in the media cache folder specified in Preferences. Also, for working on huge project, audio conforming would take a long time before someone can actually start editing. Many times Adobe didn't do a good job in the conforming audio process. Sometimes it will goes into a loop on conforming. If that happens, need to delete all the .CFA files then let premiere re-confirm at the next project start up. Don't touch or do anything before the conforming is complete finished. __________________ LA Color Pros Blog RODE Authorized Reseller . Comer LED Camera Lights . TakyBox HTML5 Menu Generator

October 22nd, 2012, 12:47 AM	#13
Marcello Mazzilli Major Player Join Date: Apr 2009 Location: ITALIA Posts: 416	Re: avoiding conforming audio? Premiere, compared to Final Cut 7 for example.. doesn't need to render audio once you are working.... I guess this is a feature that needs this conforming before.. But.. somebody should take it as a suggestion... why not give me the option to import VIDEO ONLY clips... MXF can have 8 or 16 audio tracks and sometimes these are useless !

October 22nd, 2012, 10:15 AM	#14
Taky Cheung Inner Circle Join Date: May 2007 Location: Los Angeles, USA Posts: 2,114	Re: avoiding conforming audio? Premiere still render audio before previewing. Say like, if you change the speed of the clip but retain pitch. In that case, premiere will render the audio before previewing the timeline. __________________ LA Color Pros Blog RODE Authorized Reseller . Comer LED Camera Lights . TakyBox HTML5 Menu Generator

October 25th, 2012, 05:09 AM	#15
Marcello Mazzilli Major Player Join Date: Apr 2009 Location: ITALIA Posts: 416	Re: avoiding conforming audio? SUre... audio will render if effected..but not touching volumes etc... I hate this conforming.... Everytime I plus in the drive (I use a dock) it does the conforming again.... Like in a PC when it changes the drive letter... It's almost impossible to work this way.... And the worst thing is that I don't even need audio ! M