论文标题
音调修改技术的比较评估
A Comparative Evaluation of Pitch Modification Techniques
论文作者
论文摘要
本文解决了音调修改的问题，这是有效语音转换系统的重要模块。将我们在先前工作中提出的残留信号的确定性加上随机模型与TDPSOLA，HNM和Straight进行了比较。通过重要的主观测试比较这四种方法。分析了说话者性别和音高修改比的影响。尽管具有更高的压缩水平，但DSM技术被证明比其他方法具有相似或更好的结果，尤其是对于男性扬声器和重要的修饰比。事实证明，DSM的表现只能超过女性声音。
This paper addresses the problem of pitch modification, as an important module for an efficient voice transformation system. The Deterministic plus Stochastic Model of the residual signal we proposed in a previous work is compared to TDPSOLA, HNM and STRAIGHT. The four methods are compared through an important subjective test. The influence of the speaker gender and of the pitch modification ratio is analyzed. Despite its higher compression level, the DSM technique is shown to give similar or better results than other methods, especially for male speakers and important ratios of modification. The DSM turns out to be only outperformed by STRAIGHT for female voices.
