So a post on FCP.CO was asking how to import footage from an AVCHD camera that shoots with 5.1 surround sound. So after a little looking around I found that both iMovie and Final Cut Pro X, well and Final Cut Pro 7 do not support importing the 5.1 audio. The reason for this is the Apple’s AVCHD converter reduces sound from 5.1 channels to 2 channels (stereo). From what I can tell apparently iMovie handles the mix down properly but Final Cut Pro X does not.
Well I did not want to use a mix down so I looked for a work around that would allow me to use the 5.1 audio. If you use Shedworx’s VoltaicHD you can extract the 5.1 audio, then you can run that audio through compressor. Once you have a 5.1 surround sound quicktime file you can connect that audio to your video.
I have created an more detailed PDF you can download it Here (PDF)
You can also download a droplet of the compressor settings I used Here (QuickTime Audio 5.1 Surround)