Patent ID: 8218798

Claim:
A sound processor comprising: N (N is an integer of five or more) speakers; a sound source configured to output N sound signals; an additional sound source configured to output an additional sound signal; a coefficient data input section configured to input N pieces of position information indicating respectively positions of said N speakers and N coefficients indicating respectively volumes of sounds outputted from said N speakers based on said additional sound signal; a coefficient data analysis section configured to generate M (M is an integer equal to or greater than two and smaller than N) adjustment coefficients based on said N pieces of position information and said N coefficients wherein said M adjustment coefficients indicate volumes of sounds outputted from M speakers of said N speakers based on said additional sound signal; an additional sound processing section configured to generate M adjusted additional sound signals based on said additional sound signal and said M adjustment coefficients; and a superimposition section configured to generate M superimposed sound signals by superimposing respectively said M adjusted additional sound signals on M sound signals of said N sound signals, wherein said M speakers output respectively sounds based on said M superimposed sound signals, and remaining (N-M) speakers of said N speakers output respectively sounds based on remaining (N-M) sound signals of said N sound signals.