|Title||Fire Texture Sound Re-Synthesis Using Sparse Decomposition and Noise Modelling |
|Publication Type||Conference Paper |
|Year of Publication||2012 |
|Conference Name||International Conference on Digital Audio Effects (DAFx12) |
|Authors||Kersten, S., & Purwins P. |
|Abstract||In this paper we introduce a framework that represents environmental texture sounds as a linear superposition of independent foreground and background layers that roughly correspond to entities in the physical production of the sound. Sound samples are decomposed into a sparse representation with the matching pursuit algorithm and a dictionary of Daubechies wavelet atoms. An agglomerative clustering procedure groups atoms into short transient molecules. A foreground layer is generated by sampling these sound molecules from a distribution, whose parameters are estimated from the input sample. The residual signal is modelled by an LPC-based source-filter model, synthesizing the background sound layer. The capability of the system is demonstrated with a set of fire sounds.
|Full Document||http://mtg.upf.edu/system/files/publications/kersten_purwins_dafx_2012.pdf |