Difference between revisions of "Mathematics/Field and energy quantities (Q256)"
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(Created claim: knowledge detail (EN) (P35): field quantities vs. energy quantities in logarithmic notation) | (Changed claim: knowledge detail (EN) (P35): energy and power quantities) | ||
| (6 intermediate revisions by the same user not shown) | |||
| Property / knowledge detail (EN) | Property / knowledge detail (EN) | ||
| - | + | field (root-power) quantities (English) | |
| Property / knowledge detail (EN) | Property / knowledge detail (EN) | ||
| - | + | energy and power quantities (English) | |
| Property / knowledge detail (EN): field quantities vs. energy quantities in logarithmic notation (English) / qualifier | |||
| + | knowledge content: 10 log for power levels (English) | ||
| Property / knowledge detail (EN): field quantities vs. energy quantities in logarithmic notation (English) / qualifier | |||
| + | knowledge content: 20 log for voltage and sound pressure levels (English) | ||
| Property / learning materials | |||
| + | Leistungsgröße (German) | ||
| Property / learning materials: Leistungsgröße (German) / rank | |||
| + | Normal rank | ||
| Property / learning materials: Leistungsgröße (German) / qualifier | |||
| + | |||
Latest revision as of 19:17, 29 July 2024
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Mathematics/Field and energy quantities | No description defined |
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The confusion about "10 log" versus "20 log" is as old as sound engineering, and certainly not helped by the fact that our loudness perception is proportional to sound pressure level rather than energy. A closer look at field and energy quantities can shed light on the mystery. (English)
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Power, root-power, and field quantities (English)
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Leistungsgröße (German)
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field (root-power) quantities (English)
sound pressure (English)
signal voltage (RMS) (English)
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energy and power quantities (English)
amplifier output power (English)
sound intensity (English)
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field quantities vs. energy quantities in logarithmic notation (English)
10 log for power levels (English)
20 log for voltage and sound pressure levels (English)
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