Title :
Energy-based nonuniform time-scale compression of audio signals
Author :
Chu, Wai C. ; Lashkari, Khosrow
Author_Institution :
Mobile Media Lab., DoCoMo USA Labs, San Jose, CA, USA
Abstract :
A novel method for time-scale compression based on a time-varying time-scale ratio is developed, with the ratio determined by the short-term energy of the signal. The target operating area of the technique is in very low ratio time-scale compression, where it is shown that improvement in perceptual quality is achievable at low computational complexity.
Keywords :
audio coding; computational complexity; data compression; audio signals; computational complexity; energy-based nonuniform time-scale compression; perceptual quality; short-term energy; time-varying time-scale ratio; very low ratio time-scale compression; Compression algorithms; Computational complexity; Consumer electronics; Frequency; Helium; Information retrieval; MPEG 7 Standard; Multimedia databases; Speech processing; Streaming media;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2003.1205474
