Remuxing Audio to Video File - what's your workflow?

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Mathematics
Posts: 75
Joined: Wed May 27, 2015 4:18 am
Primary DAW OS: Windows
Location: Los Angeles, CA

Remuxing Audio to Video File - what's your workflow?

Post by Mathematics »

I was curious what some of you use for remuxing audio to video, that is, when you don't want to re-render video but simply replace the audio in a video file. What I would be interested in hearing is what format of video do you use and what application are you using. I know Cubase does this nicely and Pro Tools can do it for 1080p using the DNxHD 80 codec. Unless I missed it somewhere in the DP manual, DP doesn't do remuxing.

I'm working with 1080p video edited and rendered coming out of Premiere. I extract the audio and do some processing to it in DP. I then render the audio out from DP, import it back into Premiere and re-encode the file...but that kills frequencies at the Nyquist limit. Essentially, the audio quality goes down because Adobe's Media Encoder is not that great.

I don't record the audio; which comes to me as 16bit/44.1kHz to begin with. So, the 16bit depth is crippling the audio quality. Unfortunately, I don't have control of the recording equipment...I'm just getting the audio and video this way.
My results are not bad but if I can avoid re-encoding, that would definitely improve the audio quality. Lastly, the audio length never changes. Any suggestions?
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