Thanks. Yes, I'm on 10.8 with 2gb ram, and I have three tracks which I
am copying and pasting a lot. I changed nothing about the rate, so I
don't think that is different.
On 11/17/12, gale@... <gale@...> wrote:
> On Thu, 15 Nov 2012 18:38:49 -0500
> Alex Hall <mehgcap@...> wrote:
>> You know my project, the joining of three episodes of a podcast into a
>> single file. I just finished pasting together a chapter and exported it.
>> However, it is as though some of the edits I made did not take; there is a
>> large silence where I deleted some audio, and a trim I made at the end of
>> a file did not work so the audio that was supposed to be gone is still
>> there. Overall, Audacity is being very slow, though not all the time, for
>> everything from arrowing between tracks to deleting sections of audio to
>> copying audio to the clipboard. Even the export took a surprisingly long
>> time and, as I said, did not export the right files, as though it had not
>> executed some edits I had made pretty early on in the project. I'm on a
>> low-end mac mini with 2gb ram. Does Audacity not do well with low ram? I
>> did not have this problem a month ago when I pasted together the first
>> chapter, and small edits (on single songs) work fine. Now, despite
>> upgrading from 2.0.1 to 2.0.2, I am experiencing all these delays, busy
>> messages (what I've heard sighted people call the spinning wheel of death
>> on the mac), and loss of edits. Any suggestions?
> How long is the total audio?
> Audacity is slow in projects containing a total of an hour or more
> of audio, compared to versions earlier in the 1.3 Beta series and
> before. Any of these may be slow:
> * Creating a label or label track
> * Dragging selections with the keyboard (Workaround: Hold SHIFT
> then press left or right arrow a few times per second instead of
> holding the arrow key)
> * Dragging sample points with Draw Tool
> * Using Cut, Copy, Paste, Delete or Silence Audio.
> I had not heard of arrowing between tracks being slow, and export
> should not be that slow unless the sample rate of the tracks is
> different to the project rate (in Selection Toolbar).
> 2.0.2 does not let you store audio data in RAM, but lengthy projects
> do require some RAM and considerable processing power. If you are
> on OS X 10.7 or later, you really need most of the 2 GB RAM merely to
> run the operating system. As it says here:
> "Where Audacity is to be used for lengthy multi-track projects, we
> recommend a minimum of 2 GB RAM and 2 GHz processor (4 GB RAM
> on OS X 10.7 or later)."
> You could try Audacity > Preferences, arrow down to "Quality"
> in the tree on the left, tab into the pane for "Quality" then
> change "Default Sample Format" to 16-bit. This might very marginally
> reduce quality (for example, if you were changing the audio volume
> a lot), but it does halve the amount of data that Audacity is trying
> to handle.
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Have a great day,
Alex (msg sent from GMail website)