How to Capture 32K audio? at DVinfo.net

Glenn Davidson · February 27th, 2007, 01:34 AM

I am transfering to FCP some older DV tapes for a client and I notice that two were recorded at 32K sampling rate for the audio. Since I did not see a 32K selection on the capture selection menu, I am using standard DV 48K. So far, the captured file looks in sync and I did not hear any distortion. How would you capture 32K audio?

Victor Kellar · February 27th, 2007, 02:58 PM

Easy Setup: DV-NTSC 32K

In the Easy Setup box, you may have to check the "Show All" button to expand it to show more setups

Capturing it as 48K you may or may not have sync probs, as long as all your audio matches. You may not find out till you try to Export it.

Glenn Davidson · February 27th, 2007, 10:27 PM

Hmmm. I don't see that on FCP5. The basic Dv-NTSC works fine though. Thanks for your response.

Victor Kellar · February 27th, 2007, 11:38 PM

File>Easy Setup etc. etc. How many setups do you see? There should be a whole whack of them. If not, something was wrong with your set up. Trash prefs and try again

You should also be able to change it under Sequence Settings

At any rate, glad things are working

Glenn Davidson · February 27th, 2007, 11:50 PM

Now I am curious. Under Final Cut Pro>Easy Set Up (SHOW ALL), for DV-NTSC I have:

DV NTSC
DV NTSC 24P
DV NTSC 24P APR
DV NTSC ANAMORPHIC
DV NTSC FW BASIC

No 32 kHz.

Victor Kellar · February 28th, 2007, 09:43 AM

Do you see the other non-DV setups as well? Or just those? Definitely something amiss ... is this a new install? I would definitely trash the prefs or even do a re-install

Jonathan Jones · February 28th, 2007, 11:41 AM

Hi Glenn,
I am using FCP HD 4.5 and I remember having some concern about this way back when I was preparing to do a capture of some 32khz material. To be honest, I really don't remember what I did, as I seem to remember having read somewhere that you can just capture your 32 kHz audio into a 48 kHz timeline and FCP will resample automatically. I don't really know if this was the case....I'm suspicious of it. Although, I just tested that to see what would happen. I just ran a test capture of a dv tape with 32 kHz audio and captured it into a project and dropped it into a 48 kHz timeline. It played fine...so I don't know. In any case, it is easy enough to make your 32 kHz custom preset.

If I remember correctly, this is what you need to do. (I don't think anything is amiss with your preferences or anything. I just think that the 32 kHz presets are custom, not stock. So no re-install needed)

In your Audio/Video settings, click on your Capture Presets tab. You will see your standard 48 kHz capture settings. Click the "Duplicate" button and you will get a window that lets you set all the paremeters (including first two channels of audio, sencod two channels, etc... - and you can also select your audio kHz preset. Give your new preset an appropriate name and description and click OK You now have a preset for 32 kHz capture.

Good luck.
-Jon

Glenn Davidson · February 28th, 2007, 12:30 PM

Victor:
Those are just the DV NTSC set-ups that I listed.

Jonathan:
I think you are right about FCP resampling the audio. Even though FCP gave a warning about the 32K audio in a 48 K timeline, sync and sonic quality are fine. So FCP must have handeled it. I just wanted to make sure that I wasn't putting out a master that had problems.

Thanks to both you for the help.

Jonathan Jones · February 28th, 2007, 12:51 PM

Cool. I'm glad its working for you.
-Jon

February 27th, 2007, 01:34 AM	#1
Glenn Davidson Major Player Join Date: Dec 2005 Location: Nevada City, California Posts: 499	How to Capture 32K audio? I am transfering to FCP some older DV tapes for a client and I notice that two were recorded at 32K sampling rate for the audio. Since I did not see a 32K selection on the capture selection menu, I am using standard DV 48K. So far, the captured file looks in sync and I did not hear any distortion. How would you capture 32K audio?

February 28th, 2007, 11:41 AM	#7
Jonathan Jones Trustee Join Date: Jan 2005 Location: Healdsburg, California Posts: 1,138	Hi Glenn, I am using FCP HD 4.5 and I remember having some concern about this way back when I was preparing to do a capture of some 32khz material. To be honest, I really don't remember what I did, as I seem to remember having read somewhere that you can just capture your 32 kHz audio into a 48 kHz timeline and FCP will resample automatically. I don't really know if this was the case....I'm suspicious of it. Although, I just tested that to see what would happen. I just ran a test capture of a dv tape with 32 kHz audio and captured it into a project and dropped it into a 48 kHz timeline. It played fine...so I don't know. In any case, it is easy enough to make your 32 kHz custom preset. If I remember correctly, this is what you need to do. (I don't think anything is amiss with your preferences or anything. I just think that the 32 kHz presets are custom, not stock. So no re-install needed) In your Audio/Video settings, click on your Capture Presets tab. You will see your standard 48 kHz capture settings. Click the "Duplicate" button and you will get a window that lets you set all the paremeters (including first two channels of audio, sencod two channels, etc... - and you can also select your audio kHz preset. Give your new preset an appropriate name and description and click OK You now have a preset for 32 kHz capture. Good luck. -Jon __________________ "Are we to go on record, sir, with our assertion that the 'pink hearts, yellow moons, orange stars, and green clovers' are, in point of fact', magically delicious?" - Walter Hollarhan before the House Subcommittee on Integrity in Advertising - May, 1974

February 28th, 2007, 12:51 PM	#9
Jonathan Jones Trustee Join Date: Jan 2005 Location: Healdsburg, California Posts: 1,138	Cool. I'm glad its working for you. -Jon __________________ "Are we to go on record, sir, with our assertion that the 'pink hearts, yellow moons, orange stars, and green clovers' are, in point of fact', magically delicious?" - Walter Hollarhan before the House Subcommittee on Integrity in Advertising - May, 1974

February 27th, 2007, 02:58 PM	#2
Victor Kellar Major Player Join Date: Feb 2007 Location: Toronto Ontario Canada Posts: 239	Easy Setup: DV-NTSC 32K In the Easy Setup box, you may have to check the "Show All" button to expand it to show more setups Capturing it as 48K you may or may not have sync probs, as long as all your audio matches. You may not find out till you try to Export it.

February 27th, 2007, 10:27 PM	#3
Glenn Davidson Major Player Join Date: Dec 2005 Location: Nevada City, California Posts: 499	Hmmm. I don't see that on FCP5. The basic Dv-NTSC works fine though. Thanks for your response.

February 27th, 2007, 11:38 PM	#4
Victor Kellar Major Player Join Date: Feb 2007 Location: Toronto Ontario Canada Posts: 239	File>Easy Setup etc. etc. How many setups do you see? There should be a whole whack of them. If not, something was wrong with your set up. Trash prefs and try again You should also be able to change it under Sequence Settings At any rate, glad things are working

February 27th, 2007, 11:50 PM	#5
Glenn Davidson Major Player Join Date: Dec 2005 Location: Nevada City, California Posts: 499	Now I am curious. Under Final Cut Pro>Easy Set Up (SHOW ALL), for DV-NTSC I have: DV NTSC DV NTSC 24P DV NTSC 24P APR DV NTSC ANAMORPHIC DV NTSC FW BASIC No 32 kHz.

February 28th, 2007, 09:43 AM	#6
Victor Kellar Major Player Join Date: Feb 2007 Location: Toronto Ontario Canada Posts: 239	Do you see the other non-DV setups as well? Or just those? Definitely something amiss ... is this a new install? I would definitely trash the prefs or even do a re-install

February 28th, 2007, 12:30 PM	#8
Glenn Davidson Major Player Join Date: Dec 2005 Location: Nevada City, California Posts: 499	Victor: Those are just the DV NTSC set-ups that I listed. Jonathan: I think you are right about FCP resampling the audio. Even though FCP gave a warning about the 32K audio in a 48 K timeline, sync and sonic quality are fine. So FCP must have handeled it. I just wanted to make sure that I wasn't putting out a master that had problems. Thanks to both you for the help.