Hi,

New to Free DV. . .

I am importing video/audio from Quicktime .mov file to the bin.  When I preview the resulting clip, the audio is just white noise at full scale amplitude.

Just about smoked my speakers the first time around.  I have tried experimenting with some of the sample rate/bit depth conversion options with no change.

Any suggestions?

Thanks!

JPJ

AMD x64 Dual Core 2.10Mhz, 2G RAM, nVidia 8500 GT, Windows XP Pro

You need to tell us where the QT came from and what codec the Audio is using. What sample rate is the QT and what is your project audio set to?

Also, what version of QT?

 Sorry,

QT file came from a Minolta digital camera.  Not sure of the audio codec but the file info states "Compression: None" (audio track)

Bit depth of source audio is 16, Sample rate is 7.832Khz.

Project audio is set to 16Bit/48K and under Import Settings/Audio "Convert source sample rate to project sample rate" is selected.

The installed version of Quicktime is 7.3

Thanks. . .

I think the problem here is the sample rate. You need a sample rate of either 32khz, 44.1 or 48.

I've never seen a file with 7.8 so I'm guessing the Avid may have a problem converting that.

JPJ:

The installed version of Quicktime is 7.3

Hi,

Try uninstalling QT 7.3 and install 6.5.2 instead.  QT 7.3 isn't qualified for FreeDV.

good luck,
Carl 

Thanks Carl, I'll check that out.

Regards. . .  

BLKDOG:

I think the problem here is the sample rate. You need a sample rate of either 32khz, 44.1 or 48.

I've never seen a file with 7.8 so I'm guessing the Avid may have a problem converting that.

I may end up converting to avi and importing to Avid.

Cheers

JPJ

 I wouldn't be too hasty about rolling back to QT 6.5.2

I'm running xpro 4.6 and I've stuck with that, 'ocs I can't afford to lose projects at work!

But running free dv on a range of machines, and quicktime 7 seems fine. (Not sure about 7.3 though.) And it has advantages, esp there's now an mpg4 export option, and it will import mgp4 movs without just showing white for video (as well as white noise audio, haha.)

7.8 does seem an odd... (very very low) sample rate, and I think it is your problem: I'd try converting that to one of the above mentioned first. avis are ok, but movs are generally a bit better (and import faster) in avid.