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Noise During Playback

PostPosted: Thu Aug 09, 2018 8:08 pm
by CaféNoir
After working an hour or so, I experience a scratch noise at the start of each playback (see link below). I then have to quit and restart the application to get back to normal. Any suggestion what might be the problem and its solution?

https://streamable.com/660ba

Re: Noise During Playback

PostPosted: Fri Aug 10, 2018 7:05 pm
by Peter Chamberlain

Re: Noise During Playback

PostPosted: Fri Aug 10, 2018 11:50 pm
by CaféNoir
Yeah, sorry. Here are the additional info:
Davinci Resolve 15.0.0B.080
Macbook pro mid-2012 with NVIDIA GeForce GT 650M GPU
MacOS High Sierra 10.13.6

Re: Noise During Playback

PostPosted: Sat Aug 11, 2018 3:32 am
by Uli Plank
What's your resolution and codec? That GPU is really on the lower edge for Resolve.

Re: Noise During Playback

PostPosted: Sat Aug 11, 2018 2:39 pm
by CaféNoir
Indeed, I have an old computer with slow GPU in today's standards. I thought it would be enough to tackle a 2-minute-long movie trailer. Resolution is 1920x1080 HD and Codec is ProRes 422 HQ. Could the noise I am talking about above be related to the weakness of the GPU?

Re: Noise During Playback

PostPosted: Sat Aug 11, 2018 3:53 pm
by Uli Plank
Yes. And the problem is not about length, but about resolution. You could try SD or maybe even 1280 x 720.

Re: Noise During Playback

PostPosted: Sat Aug 11, 2018 4:11 pm
by CaféNoir
OK, thanks. I also have a problem of text updating itself. It took me 30 seconds going back and forth between the timeline and the inspector, adjusting and retyping chunks of it before the text was correctly displayed. Related also to GPU weakness?

Re: Noise During Playback

PostPosted: Sun Aug 12, 2018 2:19 am
by Uli Plank
Keep the window for GPU load (Activity Monitor) open and check.