![]() The reference level when working with “dB” has the number 0 (zero). When working with signal levels *as in Audacity", the reference level is “full scale”, which in Audacity’s case is the hight of a track. A measurement in “dB” says how big something is compared to something else. It is a comparison of one magnitude to another. “cm”, “kilogram”, “dollar”, “degrees centigrade” etc are all units of measurement, but “dB” is not. There’s is a request posted to keep them the same but label them both in dB. That’s not to say the percent range of blue waves is useful, either. That’s impossible to measure in dB Waveforms. AudioBook voice corrections, for, example are in the top 2 and 3dB range. You can accidentally make sound damage while you’re editing, but recover very easily later.Ĭhanging the blue sound waves into dB may seem like a terrific idea, but it pushes the most used sound range way up into the top of the display. ![]() This is to keep the effects and filters from causing problems. Audacity uses an internal standard of 32-bit floating. 0dB overload is always the same no matter what standard you’re using.Įxcept one. The problem with that, past the obvious need to do advanced math (Quick, what’s 7dB lower than that?) is that it changes with the sound standard. I saw one page where they decided to start measuring at the quiet point and go up. It’s important to keep that “-” in there. Sound starts out at 0dB maximum loudness and goes quieter to the digital limit, -96dB.
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