Title :
Modifying transients for efficient coding of audio
Author :
Vafin, Renat ; Heusden, R. ; Kleijn, W. Bastiaan
Author_Institution :
Dept. of Speech, Music & Hearing, R. Inst. of Technol., Stockholm, Sweden
Abstract :
We propose a method for efficient representation of transients in audio signals. We estimate the transient component of an original audio signal and modify the locations of the transients in such a way that the transients can occur only at locations defined by a relatively coarse time grid. This procedure allows an efficient representation of transients with damped sinusoids. We also verify that the introduced modifications do not result in a perceptual difference between the original and the modified audio signals
Keywords :
audio coding; discrete cosine transforms; signal representation; transform coding; transients; DCT; audio coding; computer simulations; damped sinusoids; discrete cosine transform; informal listening tests; modified audio signals; parametric coding; transients location; transients modification; transients representation; Algorithm design and analysis; Audio coding; Auditory system; Bit rate; Damping; Multiple signal classification; Rate-distortion; Signal analysis; Signal processing; Speech coding;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.940360
