| 摘要 |
<p>An information compress method for digital audio file, wherein the frequency coefficients of each frame are reassigned and realigned utilizing harmonic structure quad tree (HSQT), the operation is simplified and the operation speed is increased utilizing concurrent encoding in hierarchical trees (CEIHT), the symbols of the CEIHT coefficients be marked using arithmetic coding , the storaged bits are registered and determined according to the present probability of the symbols which being inverse ratio to the bits The compressed audio file with high compressed ratio can be acquired using simply procedure by means of reducing the storaged bits largely by increasing the present probability of the symbols.</p> |
