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3rd Party Plugins - (fb2k) / Re: foo_vis_spectrum_analyzer
Last post by pqyt -Again, I'm not an expert but isn't the confusion centered around dB and dbFS? Also, the mathematical RMS definition seems to get obfuscated by the audio world understanding of RMS.Sorry @case but I'm not going to take your word for it. Removing the division causes all the test files from SOS to have a dBFS reading that is 3dB higher than their expected result. Even the tone://997 reference is wrong.It's not my word, that's the very definition of RMS: https://en.wikipedia.org/wiki/Root_mean_square#Definition.
You calculate the sum of values squared, divide by the number of values and take square root of that.
And removing the last division does not increase the result, I don't understand why you claim that. It causes the file labeled -20 dB to show -23 dB RMS, or -20 dB with the +3 mode enabled. And tone:// test is -3.0 dB / 0.0 dB.
If tone://997 is a pure 997Hz sine wave that is used as reference point of dBFS (the zero point), then shouldn't that show up with a 0 *dBFS* reading?
If a test file is published as -20dbFS, shouldn't that be rendered at -20dBFS?
If you want a *dB* reading and rendering, activate the RMS+3 toggle.