由于历史社会文化发展的差异，造成粤语语音具有许多鲜明的地域特点。粤语在广东范围可分为广府片、四邑片、高阳片、罗广片和吴化片等五个片，这些方言片体现在声韵调三方面的语音特点具有明显的地域差异性，为人身分析提供条件和依据。

Objective To study the characteristics of speech and expand the application of voiceprint identification.Methods The current Methods of voiceprint identification were compared and the key factors of identification were analyzed.Results The experience and lessons of the voiceprint identification were obtained and the improvement of the existing concept was suggested.

通过听辨可识别话者的言语特征，据此分析其语音生理特征、心理活动特征、地域职业特征等，识别说话人身份；在此基础上，结合其它声纹鉴定方法最终作出同一认定或分析意见。由于独特的技术优势，声纹鉴定技术得到越来越广泛的应用，为公安部门有效预防犯罪和快速侦破案件提供支持和帮助。