Threshold setting model for the set partitioning in hierarchical trees (SPIHT) for audio
Shrinidhi Vilas Sondur · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2011
This paper describes applying the Set Partitioning in Hierarchical Trees (SPIHT) algorithm using a devised model to compress audio signals. It allows choosing the amount of compression based upon bit rate requirements. A threshold setting model, based on energy and frequency patterns of the signal is used to assist the SPIHT encoder set efficient threshold values, based upon the nature of the audio. It is thus adaptable to the nature of the audio as well as the bit rate requirement. The implementation can be used for storage as well as progressive transmission.