Bandwidth extenstion methods are required in systems that playback bandlimited signals (e.g. telephone, MP3) or that are not capable of reproducing signals with a large bandwidth (small or inexpensive loudspeakers). The first part of this paper deals with reproducing low pitched signals through small loudspeakers. This work is based on psychoacoustic phenomena to invoke a deep bass impression using only higher frequency components. The second part of this paper deals with high-frequency bandwidth extension of music and speech. In this method, no additional information on the original wide band content is required. It aims at providing a more pleasant and brighter sound impression.
|Titel||Proceedings of the first IEEE Benelux workshop on Model based Processing and Coding of Audio (MPCA-2002), Leuven, Belgium, November 15, 2002|
|Plaats van productie||Brussels|
|Uitgeverij||Institute of Electrical and Electronics Engineers|
|Status||Gepubliceerd - 2002|
Aarts, R. M., Larsen, E., & Schobben, D. W. E. (2002). Improving percieved bass and reconstruction of high frequencies for band limited signals. In Proceedings of the first IEEE Benelux workshop on Model based Processing and Coding of Audio (MPCA-2002), Leuven, Belgium, November 15, 2002 (blz. 59-71). Brussels: Institute of Electrical and Electronics Engineers.