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XDCAM audio importing only one channel

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Nick Swinglehurst
XDCAM audio importing only one channel
on Jun 19, 2013 at 11:16:26 pm

Hi all,

I'm importing some XDCAM EX Quicktimes into Avid, but once imported the clips are missing one audio channel.

The XDCAM .mov files are in the following format:

XDCAM EX 1080p25 (35 Mb/s VBR), 1920 x 1080 (1888 x 1062), Millions
16-bit Integer (Little Endian), Left, 48.000 kHz <--- This is lavalier mic audio
16-bit Integer (Little Endian), Right, 48.000 kHz <---- This is on-camera mic audio

If I import the .mov files directly into Avid, the audio channels are swapped over and the lavalier mic audio is missing. What I get instead is that channel 1 (left) is the on-camera mic and channel 2 (right) is a blank waveform where I would have expected to see the lavalier audio.

If I first convert the .mov files using Streamclip and then import these files into Avid, everything is correct - all audio is present and is in the correct channels.

I have tried changing my Avid import settings: Multichannel Audio to "None" or "Stereo A1A2", "Sample rate convert source sample rate to project sample rate" on or off, and "Autodetect Broadcast Wave Monophonic Groups" on or off, all of these produce the same result when importing the XDCAM .mov files.

At this stage, I've already imported all the XDCAM media into Avid, so I am reluctantly having to reconvert all the rushes using Streamclip and reimport them again.

But for future reference, can anyone explain what's going on here?

Thanks,

AVID MC 5.5, Mac Pro OS X 10.6, 2 x 2GHz Dual Core Xeon


Nick


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