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reaper-oss / sws

The SWS extension is a collection of features that seamlessly integrate into REAPER, the Digital Audio Workstation (DAW) software by Cockos, Inc
https://www.sws-extension.org/
MIT License
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Loudness Range Calculation #927

Open cjunekim opened 6 years ago

cjunekim commented 6 years ago

Hi

It seems like the relative threshold for gating is set to -10 currently, instead of -20. According to EBU TECH3342 notes, The relative threshold should be -20 under the absolute gated loudness level. https://tech.ebu.ch/publications/tech3342

Moreover, I don't think the absolute threshold gating works, either. If I insert silence for a period to an audio track, the loudness range changes significantly. Instead, it should not change, since it has to be gated and not considered at all in the percentile calculation.

nofishonfriday commented 6 years ago

Confirmed regarding the relative gating threshold. Changed from -10 to -20 for the next build.

About absolute gating, I couldn't confirm your observations yet in first tests. I'll do more testing but if you could provide an example project where it happens (with audio) that would be helpful too.

nofishonfriday commented 4 years ago

Changing relative gating threshold from -10.0 to -20.0 was reverted in v2.10.0 (as it wasn't correct, technical explaination).