Document Type

Conference Paper


This item is available under a Creative Commons License for non-commercial use only


Electrical and electronic engineering

Publication Details

22nd IET Irish Signals and Systems Conference, 2011


Much research has been carried out on the use of non-negative matrix factorisation for the purpose of musical sound source separation. However, a notable shortcoming of non-negative matrix factorisation is that the recovered basis functions have to be clustered to sound sources for separation to take place. This has proved to be a difficult problem to solve. As a means of overcoming this problem, we introduce an extension to non-negative matrix factorisation which allows a user to guide the sepa- ration by singing, or playing along with, the source they want to separate. This is done through the use of gamma-chain priors. Examples of user assisted separation are also presented


Science Foundation Ireland