Audio decorrelation creates perceptually transparent extra independent channels from few signals
Evidence
Decorrelation is a method for processing a signal so that its ICC ≈0 with respect to the original signal as well as with respect to the processed signals from other decorrelators. Ideally, a decorrelator is designed such that the perceptual characteristics of the sound are least affected. Decorrelation is necessary for applications that increase the number of independent channels, such as upmixing or surround sound rendered from a few microphone signals. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 2150
Categorization
Category: Definitional Content
- DEFINE: Defines decorrelation and its role in channel-count-increasing applications.
Related
- Decorrelation enables creating independent channels while preserving perceptual quality. (similarity 0.96)
- Matrixing encoded multichannel audio onto two-channel media at the cost of channel separation (similarity 0.82)
- Decorrelators degrade audio quality on transient-rich signals like applause. (similarity 0.78)