A hybrid virtual bass system for optimized steady-state and transient performance
Journal article
Authors | Hill, Adam J. and Hawksford, Malcolm O. J. |
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Abstract | Bandwidth extension of a constrained loudspeaker system is regularly achieved employing nonlinear bass synthesis. The method operates on the doctrine of the missing fundamental whereby humans infer the presence of a fundamental tone when presented with a signal consisting of higher harmonics of said tone. Nonlinear devices and phase vocoders are commonly used for signal generation; both exhibiting deficiencies. A system is proposed where the two approaches are used in tandem via a mixing algorithm to suppress these deficiencies. Mixing is performed by signal transient content analysis in the frequency domain using constant-Q transforms. The hybrid approach is rated subjectively against various nonlinear device and phase vocoder techniques using the MUSHRA test method. |
Keywords | Psychoacoustics; Digital signal processing; Virtual bass; Nonlinear processing |
Year | 2010 |
Publisher | IEEE |
Web address (URL) | http://hdl.handle.net/10545/229154 |
hdl:10545/229154 | |
Publication dates | Sep 2010 |
Publication process dates | |
Deposited | 15 Jun 2012, 14:51 |
ISBN | 978-1-4244-9029-5 |
Contributors | University of Essex |
File | File Access Level Open |
https://repository.derby.ac.uk/item/93969/a-hybrid-virtual-bass-system-for-optimized-steady-state-and-transient-performance
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