audio problems

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Rick van den Berg

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  • Joined: Tue Jun 02, 2015 7:47 am

audio problems

PostWed Aug 15, 2018 2:35 pm

I just finished a project in premiere. it was the finetuning of a concert, 9 cameras, 6 audio tracks (few different mix channels, multiple audience angles)

I had some time left and tried to rebuild the edit in the new resolve 15, for testing sake, but i immediately stumbled on a problem. the audio.

i created a multicam timeline of all the ISO's (6 video, 6 audio) and placed this timeline into the ''main'' timeline. as expected, a 1 layer clip with a 1 layer audio (upper video layer showing, and a mix of the 6 audio channels) looks fine at first glance, but this is what happens when i open up the multicam timeline:

when i play at a random timecode, the audio is just messed up in every way. i cant really describe what is happening. i hear some channels stutter, some only left, some only right. totally random. dips in the volume. there's no way i can edit this way.

it's a multicam timeline with 6 angles and audio tracks, but it also happens when i solo a audio/video track.

when i go back to the ''main'' timeline, it plays back fine again. but i cant really say i have faith in the rest of the process when it comes to adding more and more audio layers.

my video playback is fine. im using a decklink mini monitor HD, and the audio is routed trough my flanders monitor to my genelec speakers for achieving almost zero-latency.

i tried googling the problem and saw some topics about it, but that was long ago (v12), is this still not fixed?
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Jim Simon

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Re: audio problems

PostWed Aug 15, 2018 2:52 pm

One difference I found between Premiere Pro and Resolve is that it's best to keep your audio out of the multicam timeline in Resolve. Create the multicam only with the camera media, then add your separately recorded audio under that in the main timeline.

It just works better.
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Rick van den Berg

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Re: audio problems

PostThu Aug 16, 2018 10:35 am

that seem to work a little better thank you. still not ideal but it works for now i guess.

next issue: i cant see my waveforms. when i ''activate'' them in the timeline view options, they just don't appear. i left the pc on last night to give it some time, but still no result.
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Jim Simon

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Re: audio problems

PostThu Aug 16, 2018 4:18 pm

I've not experienced that on either of my two systems. Sorry.
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Rick van den Berg

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Re: audio problems

PostTue Aug 21, 2018 7:02 am

I tested it on a new Imac pro, had similar problems. also with ''simple'' 2 channel mxf HD clips in a regular HD timeline. after 10 sec of playing it sounds okay, but the first 10 secs are kind of
unreliable. also after rerouting and disabling the blackmagic decklink.

so the same problem on 2 +-10.000$ systems.

no one else?
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Sam Steti

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  • Location: France

Re: audio problems

PostTue Aug 21, 2018 7:36 am

Hey,
I'm regularly into multicams (from 3 to 7 cams) and I "made it work" my way months after months since say 2016...
Same opinion here : first, keep your final audios out of the ISO; just keep muted cam audios for safety reasons (in case of resync for example).
Therefore I cannot share a relevant opinion on the rest of your concerns.
Legacy MacPro 8core Xeons, 32 Go ram, 2 x gtx 980 ti, 1SSD for system, 2 SSDs raid0 for footage and caches, OSX ElCap and Sierra, Resolve 15 Studio

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