ACX-Check Plugin causes Audacity to freeze

[ericcartman]

@Gale Andrews

I started a new topic for you. Even if you actually were ripping vinyl with the exact same mixer as the user in that topic, it would be very difficult to deal with two people at once in the same topic.

Given your question is nothing to with what that user is doing, the decision to start a new topic is easily made.

The problem is that ACX-Check writes the entire audio data in the selection to RAM (memory) because this is necessary to analzye it for the type of plugin it is (Nyquist).

Also at least on Mac, ACX-Check seems to use more RAM than is warranted by the audio data, which we’ll have to look into. Suffice to say on my Mac it pushes Audacity’s RAM use to 1.2 GB for a half hour 32-bit mono track and 1.5 GB for a half hour 32-bit stereo track. After you OK the ACX-Check Analysis, the RAM has to be unloaded, which could also stress the machine.

You can use the Mac’s Activity Monitor to look at how much RAM you have left while ACX-Check is running. How much RAM is installed on your Mac?


Gale

Thank you Gale, next time, if in doubt maybe my default thing should be to start a new topic. I’m used to the Apple forums, and those are a little bit different to these

It seems to be, as you said, after OK-ing the ACX Analysis, that things really get crazy and it necessitates a Force Quit. I have 2GB of RAM, and if I am reading the right numbers, it says “Physical Memory 2GB” and under that “Memory used 1.84GB” at the time when it finally hangs. Unfortunately Apple has taken to making their laptops non-upgradeable in terms of RAM, so there’s not much I can do about it, if it turns out to be a RAM issue. As a workaround, would it work to split the clip in two and analyse each section separately? If 2 15 minute sections pass ACX, I think it’s unlikely that when joined back together, they will fail, right?

ps would it help to post the Audacity crash log here? it repeatedly mentions that it is trying and failing to load FFMpeg libraries (I’m not sure what that has to do with ACX Check, I thought FFMpeg was for something else entirely). ?