First application of effect is being unnecessarily delayed

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Re: First application of effect is being unnecessarily delay

Permanent link to this post Posted by Trebor » Mon Nov 13, 2017 6:43 pm

waxcylinder wrote:Fires up very quickly for me on W10 CE on first use- but I do have a fast laptop with 256 GB SSD non-spinning disk

On my (admittedly old) machine the CPU usage is way higher for equalizer than any of the other native effects:
just selecting equalizer from the effect-menu, without applying it, causes my fan to kick-in. No other native Audacity effect does that ...

Just selecting Equalization from Effect-menu causes abnormally high CPU, unlike selecting other native effects.gif
Just selecting Equalization from Effect-menu causes abnormally high CPU, unlike selecting other native effects.gif (1.04 MiB) Viewed 562 times

[ I don't remember the equalizer on Audacity version 1 having this delay/high-cpu problem ].
Last edited by Trebor on Mon Nov 13, 2017 7:10 pm, edited 1 time in total.
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Re: First application of effect is being unnecessarily delay

Permanent link to this post Posted by steve » Mon Nov 13, 2017 7:10 pm

The Equalization effect is overdue for some TLC. I'm hoping to have time to work on it for Audacity 2.2.2.
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Re: First application of effect is being unnecessarily delay

Permanent link to this post Posted by Trebor » Tue Feb 13, 2018 4:45 pm

The equalizer on 2-0-6 was much quicker, both in the time taken to appear when selected from the menu & the time taken to apply the equalization effect ...

2-0-6 equalizer is faster.gif
click on this image to see it in its entirety
2-0-6 equalizer is faster.gif (349.71 KiB) Viewed 314 times

I still think there's some sort of (accidental) delay loop slowing down the equalization GUI window in the more recent versions of Audacity.
Here's 2-1-2 for comparison ...

Image
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Re: First application of effect is being unnecessarily delay

Permanent link to this post Posted by waxcylinder » Tue Feb 13, 2018 5:47 pm

Trebor,

I'll try to find some time for timing tests on versions 2.0.6 thru to 2.2.2 RC1

But My initial quick test on 1h 45m of stereo audio looked quite quick to me - but I work with a non-rotating SSD

Peter
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Re: First application of effect is being unnecessarily delay

Permanent link to this post Posted by waxcylinder » Tue Feb 13, 2018 6:21 pm

Curiouser and curiouser - I get puzzlingly conflicting results

Testing with a one hour stereo project

1) Working with the non-spinning SSD - 2.0.6 EQ is 50% slower than 2.1.3 thru 2.2.0

All those later versions take a consistent 12 seconds to process the EQ - whereas 2.0.6 takes a consistent 18 seconds


2) But working with the projects saved to the spinning HD the later versions take more than twice as long to process the EQ

2.0.6 - 22 secs
2.1.3 - 44 secs
2.2.0 - 50 secs
2.2.1 - 50 secs
2.2.2 - 48 secs


:? :roll: :?:


And in all cases no appreciable time to pop the EQ dialog up

Peter.
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Re: First application of effect is being unnecessarily delay

Permanent link to this post Posted by Trebor » Tue Feb 13, 2018 9:41 pm

waxcylinder wrote:I'll try to find some time for timing tests on versions 2.0.6 thru to 2.2.2 RC1
But My initial quick test on 1h 45m of stereo audio looked quite quick to me ...

Rather than the equalization itself, it's the equalizer GUI which takes too long to appear once selected from the menu, and is delayed to act after "OK" is pressed.

Repeating the equalization via "Ctrl"+"R", i.e. without the GUI appearing, is much quicker.

[My specifications : Windows Vista 32bit OS, on 64bit hardware, spinning hard drive].
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