In the past decade, the availability of digitally encoded, downloadable music has increased dramatically, pushed mainly by the release of the now famous MP3 compression format (Fraunhofer-Gesellschaft, 1994). Online sales of music in the US doubled in 2005, according to a recent news article (*), while the number of files exchanged on P2P platforms...
Published in Circuits, Systems, and Signal Processing
In this paper, a time-domain adaptive filtering-based melody extraction method is proposed. The proposed method works in multiple stages to extract the vocal melody (singer’s fundamental frequency) from vocal polyphonic music signals. The vocal and non-vocal regions of the music signal are identified by the strength of excitation of the source sign...
Published in Computers in biology and medicine
Wheezes in pulmonary sounds are anomalies which are often associated with obstructive type of lung diseases. The previous works on wheeze-type classification focused mainly on using fixed time-frequency/scale resolution based on Fourier and wavelet transforms. The main contribution of the proposed method, in which the time-scale resolution can be t...
This work addresses the recurring challenge of real-time monophonic and polyphonic audio source classification. The whole normalized power spectrum (NPS) is directly involved in the proposed process, avoiding complex and hazardous traditional feature extraction. It is also a natural candidate for polyphonic events thanks to its additive property in...
Abstract: Literary scholarship has credited the legends collected in Bécquer’s letters Desde mi celda for the writer’s interest in the research and recovery of folklore and popular traditions. However, when approaching these traditional stories, another perspective is possible: Bécquer’s polyphonic narrations are rooted in his wide readings, from w...
