Dynamic signal detector system and method

Abstract

A digitized signal detection system where the bit rate encoding is changed dynamically to provide encoding for different type signals and formats at bit rates optimized to properly reconstruct the input signal whether speech or non-speech and therefore can transfer signals of different character on a frame by frame basis. A change of encoding format can make the system a speech or music recognizer dependent what is to be listened for. Three basic components a recognizer which categorizes the type of input signal, an evaluator which evaluates the category of quality of the reconstructed signal and a recommender which make as recommendation based on the quality to change standards to encode the signals received pursuant to a standard which provides for improved quality. The dynamic signal detector receives the input signal directly and extracts the parameters for evaluation. These parameters are tested and a determination made if a switch of standards are required. To improve the reconstructed signal. The dynamic signal detector is provided at both ends of the communication channel. One located at the encoder side which detects the signal in the first instance and form the parameters determines the character of the signal and a determination is made as to the likelihood of a quality signal being generated by the then current encoder and whether a decreased or increased bandwidth would be more appropriate.