Thank you for your reply. I tried that, and whilst it’s better than it was, it’s still not the same as in the older version of Audacity.
In low res, the jumps are a lot quicker, so it’s much improved, and I can work with it - so thanks! - but I wish I knew how to get that smooth movement again. That was on the very first version I was using in 2007 - I can’t understand why it’d disappear.
Hi I just noticed the same issue with audacity 3.0.0 & 3.0.2, on a M1 Mac Mini with 8 GB of ram running Big Sur 11.2.3.
It was weird to me because it was fine a few weeks ago and I didn’t change anything… well, except the monitor (replaced an old 24" 1080 with a 32" 4K) which I didn’t even think could be a factor since every other app performs the same as before.
Now I understand from the comments that it is most likely related to this, so I tried the low resolution option and I can confirm the behavior is much better indeed.
However, the graphics are not so great anymore, obviously, which is too bad when you just bought a 4K monitor
This is also confusing as OP says the issue appeared after upgrading to 11.2.3, and it doesn’t seem like he changed anything on the hardware side ? I’m surprised older version of audacity / macOS produce better results than newer versions ?
So is there something in Big Sur that is more demanding than before regarding graphics ?
Most importantly, is this something you can fix in future versions of Audacity ?
I’ll use the “low resolution” option for now, but it would be great if we can have this behavior with high res graphics.
Oh and I forgot, I initially ran “Activity Monitor” while doing playback, trying to figure out if it was a performance issue, and I noticed CPU at 100% with a simple playback, so I was very surprised. Not sure if this is expected ?
I am seeing the same issue for Audacity 3.0.2 on M1 MacBook Air with macOS Big Sur 11.3. With both high-res enabled and disabled, the vertical line is somewhat jumpy and the CPU usage during playback reaches ~95% on high-res and ~45% on low-res.
I have recorded a video with Audacity and Activity Monitor in hope they might be helpful:
I upgraded macOS from 11.2.3 to 11.3.1, the “Open in Low Resolution” is still checked in Audacity GetInfo window, and yet it’s back to high res… and not “jumpy” anymore ! I’m not 100% sure it’s prefectly smooth but it’s definitely a lot better (maybe if we compare side by side with an instance running very smoothly we will see a difference, but it’s very acceptable)
However CPU is still around 90% during playback
So all in all, the upgrade to macOS 11.3.1 seems to have solved the issue for me (?) and on the other hand the low resolution option seems to be ignored now.
Interesting, can’t confirm from my side. On macOS 11.3.1 I still see the difference between low-res and no low-res, and on high-res it’s still jumping 2-4 times per second only if I zoom in to see around 10s of the song. How quick it is for you now if you zoom in to similar levels?