An evaluation of alaryngeal speech enhancement methods based on voice conversion techniques
An evaluation of alaryngeal speech enhancement methods based on voice conversion techniques
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DOI：
10.1109/icassp.2011.5947513
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发表时间：
2011-05
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通讯作者：
Hironori Doi;Keigo Nakamura;T. Toda;H. Saruwatari;K. Shikano
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作者：
Hironori Doi;Keigo Nakamura;T. Toda;H. Saruwatari;K. Shikano
在这项研究中，我们评估我们提出的方法，增强无喉语音统计语音转换技术的基础上。基于高斯混合模型的语音转换已被应用于无喉语音到正常语音的转换（AL到语音）。此外，一对多本征语音转换（EVC）也已被应用到AL到语音，使喉切除者的原始语音质量的恢复，即使只有一个任意的话语的原始语音是可用的。基于VC/EVC的AL到语音系统已经被开发用于几种类型的无喉语音，例如食管语音（ES）、电喉语音（EL）和身体传导无声电喉语音（无声EL）。这些建议的系统从不同的角度进行了比较。实验结果表明，我们提出的系统产生显着的增强效果，对每种类型的无喉语音。
In this study, we evaluate our proposed methods for enhancing alaryngeal speech based on statistical voice conversion techniques. Voice conversion based on a Gaussian mixture model has been applied to the conversion of alaryngeal speech into normal speech (AL-to-Speech). Moreover, one-to-many eigenvoice conversion (EVC) has also been applied to AL-to-Speech to enable the recovery of the original voice quality of laryngectomees even if only one arbitrary utterance of the original voice is available. VC/EVC-based AL-to-Speech systems have been developed for several types of alaryngeal speech, such as esophageal speech (ES), electrolaryngeal speech (EL), and body-conducted silent electrolaryngeal speech (silent EL). These proposed systems are compared with each other from various perspectives. The experimental results demonstrate that our proposed systems yield significant enhancement effects on each type of alaryngeal speech.