does 44.1 khz audio play at different speed then 48 khz?

[Francis Hughes]

I cant really help with the audio rate but really audio should be as AIFF for final cut. At least thats what I have always been taught. itunes can convert to AIFF.

[Alan Smith]

[jason leue] “does 44.1 khz audio play at different speed then 48 khz?”

Yes. There is a significant difference. There will be sync issues using 44.1kHz.

[jason leue] “I’m capturing audio with a Olympus digital recorder, capturing video with hv30 30p.”

Are you capturing audio and video with different devices? If so, that will present several issues with sync and alignment.

Need more details to be able to offer assistance.

Alan

Alan Smith
Media317

Check out my blog – https://media317.com

[Bill Dewald]

You can use .wav or .aif with FCP.

You certaintly should use the 29.97 frame rate for your video footage. That’s your problem. Drop or non-drop is fine.

[Jason Leue]

capturing my hv30 using the apple https://support.apple.com/kb/HT2410 work flow.

but changing the frame rate to 29.97 instead of 23.97.

capturing audio and video from camera same time same firewire.

but i’d like to use my Olympus digital recorder for audio cause it’s nicer.

but the olympus recorders wma. I use a free converter to convert wma to mp3.

I’ll try converting the mp3 to aiff 48khz with itunes like you suggested.

let me know if you need more info

thanks alot for the help

Jason

[Jason Leue]

ok so I converted the mp3 to aiff 48khz but it’s still off from the video.

it is better but not close enough to use more then 30 seconds before it’s obvious it’s out of sync.

maybe I rendered out the video wrong. I may have not used 29.97.

should it line up in theory if they are both 48khz?

what other factors come into play here?

thanks alot
Jason

[Joe Sinclair]

Hi Jason,
Did you sort out the syncing problem?
I have a Canon HV30 and was thinking of buying an Olympus digital audio recorder as an extra sound device which I can sync up with the pictures later.
Which one do you have? I was thinking of the Olympus DS-50.
I could buy a 48 kHz device but they’re more expensive.
Thanks, Joe

[Robin Kress]

Exporting from FCP or Quicktime Pro will alter the duration. Neither of these programs will resample the clip, they only change the tags. An audio editor is required to actually resample the clip, then save the resampled version as a new file.

I have gone through this countless time, getting rough mixes for live concert DVDs. They send the rough mixes as an audio CD(s), and when I bring that in it’s at 44.1. I have to RESAMPLE the audio to 48. Simply exporting doesn’t change anything.

you should import the file into Sountrack Pro, then

1 Choose Process > Resample.
2 In the Resample sheet, choose a sample rate from the Sample Rate pop-up menu. In your case choose 48 kHz.
3 Click OK.

[Joshua Moss-o’brien]

Hi i have had a similar problem the audio recorded on my H4n zoom was on the wrong settings to sync with the 7d footage i recorded is there a way of batch resampling within soundtrack?

“A photograph is usually looked at – seldom looked into.”
Ansel Adams

[Davide Marchesi]

I just tried to do exactly what you said (I’m in a similar situation, trying to match the concert’s 44.1khz sound file to the 48khz footage), but it did not work: after resampling and importing the resampled 48 khz sound file I still get the “green line” in the timeline telling me that the sample rate does not match. Do you guys have any advice?