Why is the new version so slow at analyzing audio

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RAY-NUE
Posts: 92
Joined: Mon Aug 21, 2023 4:18 am
Location: Ratchaburi, Thailand

Why is the new version so slow at analyzing audio

Post by RAY-NUE »

Why is the new version so slow at analyzing audio while the old version is faster?
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Carsten
Posts: 2668
Joined: Tue Apr 15, 2014 9:11 pm
Location: Germany

Re: Why is the new version so slow at analyzing audio

Post by Carsten »

True. Analysing the same file, and in both cases doing loudness, etc, 2.14.59 keeps only 2-4 cores busy around 30-40% - while 2.16.65/2.17.7 keeps all 8 cores busy close to 100% - but takes 5 times longer.

Strange - even if I disable loudness analysis - it still keeps all 8 cores fully busy AND takes the same time. Though, I do notice that even if I disable loudness analysis in prefs, DCP-o-matic will still perform LEQ(M).


I remember that audio analysis time varied greatly over the years and versions in DCP-o-matic, but for some reason, it has reverted to being awfully slow in current versions.

I checked some older versions and noticed it was good in 2.15.30, but slow in 2.15.70.