A Simple Perceptual Method for Quantizing Wavelet Packet Coefficients of Wideband Speech

被引：0

作者：

Ghahabi, Omid ^{[1
,2
]}

Savoji, M. H. ^{[2
]}

机构：

[1] RCISP, Tehran, Iran

[2] Shahid Beheshti Univ, Tehran 1983963113, Iran

来源：

2010 IEEE 10TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS (ICSP2010), VOLS I-III | 2010年

关键词：

wavelet packet transform; perceptual quantization; psychoacoustic properties; wideband speech coding; MPEG AUDIO;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper an efficient and low complexity perceptual method is proposed for quantizing the wavelet packet coefficients of high quality speech signals. The performance of the proposed method is compared, using the same codec, with the case where all coefficients are quantized using a fixed number of bits. The results on 500 TIMIT files show that this method based on some basic perceptual considerations achieves about 15-35% reduction in the average bit-rates with almost the same or even better perceptual qualities.

引用

页码：466 / +

页数：2

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