Byte Error Analysis Based on Cascaded Approach for Digital Speech Compression

Abstract

The research in the field of speech compression is still in progress, resulting the development of many compression techniques. The objective is focused on progress of speech quality. A novel cascaded approach is designed to achieve these objectives. The coding scheme works on dropping a number of least significant bits from all bytes of the pcm coded speech file at encoding end. These dropped bits at the decoding end are then submittedfrom the respective fixed codebooks randomly. Mean Opinion Score comparisons for analysis of error free and error occurring bytes exploits the novel strategy. The codebooks used for random substitutions of bits vary with their sizes to check the improvements in MOS.