Uncorrelated source addition ignores phase and depends only on signal power.
Evidence
Adding uncorrelated sources is different from adding correlated sources in several respects. Firstly, the resulting total is related to the power of the signals combined and so is not dependent on their relative phases. — David Howard, Jamie Angus, coustics and Psychoacoustics, 239
Categorization
Category: Definitional Content
Related
- Correlated sound sources combine by direct pressure addition (similarity 0.85)
- Adding sound levels differs depending on whether sources are correlated or not. (similarity 0.83)
- Uncorrelated source totals ignore the relative phases of signals. (similarity 0.83)
- Adding uncorrelated sound sources raises level as the square root of their number (similarity 0.81)
- Correlated sound sources add pressures while uncorrelated ones add energy (similarity 0.80)
- Coherent sounds interfere by amplitude while incoherent sounds sum by power. (similarity 0.80)
- Two equal uncorrelated sound sources add only 3 decibels. (similarity 0.79)
- Two equal uncorrelated sources raise level less than two correlated ones. (similarity 0.79)
- Uncorrelated sound waves sum by power, not by amplitude. (similarity 0.79)
- Correlated sound sources sum to between zero and twice their individual amplitudes (similarity 0.79)
- Phase alignment determines whether sounds sum by amplitude or by power (similarity 0.79)
- Sound power and intensity levels are unaffected by source correlation, unlike pressure level (similarity 0.79)
- Two correlated sources combine constructively or destructively depending on frequency (similarity 0.78)