Multi-pitch Determination Algorithm Based on Mixture Laplacian Distribution
A multi-pitch determination algorithm based on mixture Laplacian distribution (MLD) is proposed. MLD replaces the autocorrelation function (ACF) of correlogram which shows the possibility of the lag being the pitch period. The peaks of summary MLDs indicate the multiple pitch periods. Compared with summary correlogram, summary MLDs has better resolution and less pseudo peaks which do not correspond to the pitch period. The proposed algorithm is evaluated on a database of speech utterances mixed with various types of interference. The comparisons show that our algorithm has better performances.
Xueliang Zhang Wenju Liu Bo Xu
National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijng, 100190, China
国际会议
上海
英文
37-41
2010-10-20（万方平台首次上网日期，不代表论文的发表时间）