Patent ID: 6792402
Filing Date: 2004-09-14
Classification: G10L

Abstract:
A method for defining a table of bit allocation composed of a plurality of bit allocation values in processing entire audio signals over a plurality of bands and times, comprising steps of:generating a plurality of signal-to-mask ratios according to said entire audio signals after receiving all of said entire audio signals; and quantizing said plurality of signal-to-mask ratios to generate a plurality of quantized levels each of which corresponds to a bit allocation value to define said table of bit allocation over the plurality of bands and times, wherein said table of bit allocation includes a time axis and a band axis so that a specific time coordinate and a specific band coordinate of said table of bit allocation correspond to a specific bit allocation value, and each said quantized level has a different number of said signal-to-mask ratios so that each said bit allocation value is different for each signal frame, thereby allocating a different number of bits in each said signal frame according to a weight of each said signal frame.