Patent ID: 7127390
Filing Date: 2006-10-24
Classification: G10L

Abstract:
1. A method of enhancing an installed speech coding system that has been in use for encoding a speech signal including a plurality of speech signal frames, said installed speech coding system including a plurality of installed speech encoders, said method comprising the steps of: providing a rate determinator module; connecting said rate determinator module to said installed speech coding system; receiving said plurality of speech signal frames by said rate determinator; determining a data rate of one of said speech signal frames by said rate determinator; selecting one of said installed plurality of speech encoders according to said data rate on a frame-by-frame basis, said installed plurality of speech encoders including at least a first encoder using a first speech encoding scheme and a second encoder using a second speech encoding scheme, wherein said second speech encoding scheme belongs to a different speech coding standard than said first speech encoding scheme; and encoding said one of said speech signal frames using said one of said plurality of speech encoders on the frame-by-frame basis; wherein said determining, selecting and encoding steps are repeated so as to encode said speech signal on the frame-by-frame basis.