Optimum quantizer design for pre-echo control in a low bit rate audio coding system

• المؤلفون الرئيسيون: Lim, Ai Chye, Huang, Dong Yan, Foo, Say Wei
• مؤلفون آخرون: School of Electrical and Electronic Engineering
• التنسيق: Conference or Workshop Item
• اللغة: English
• منشور في: 2009
• الموضوعات: DRNTU::Engineering::Electrical and electronic engineering::Electronic systems
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/90660; http://hdl.handle.net/10220/4670
• المؤسسة: Nanyang Technological University

In a low bit-rate audio transform coding system, the quantization noise is spread out over the entire analysis block in the time domain after the inverse transformation in the decoder. This increases the likelihood of pre-echoes occurring prior to a transient event. In order to control preechoes...