A novel VOCODER for cochlear implants.
A novel VOCODER for cochlear implants.
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用于人工耳蜗的新型声码器。
DOI：
10.1109/iembs.2008.4650270
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Ziarani,AK
中科院分区：
文献类型：
--
作者：
Johnson,PA;McNamara,DM;Ziarani,AK
提出了一种新的基于声码器的人工耳蜗语音处理策略。该方法在时频分辨率上改进了现有的声码器技术，具有较高的抗噪能力。该方法基于非线性正弦跟踪算法(STA)对非平稳正弦分量的有效跟踪。文中给出了该技术的结构，以及潜在的STA。预计时频分辨率的提高将在人工耳蜗术中提供优异的性能，以及在语音编码应用中的改进。给出了该技术的一个八频段版本，并显示了优于现有技术的性能。
A new VOCODER-based speech processing strategy for cochlear implants is presented. The proposed method improves upon existing VOCODER techniques in time-frequency resolution and can offer higher noise immunity. The presented method is based on the effective tracking of nonstationary sinusoid components using a non-linear sinusoid tracking algorithm (STA). The structure of the proposed technique, as well as the underlying STA are presented. It is expected that the improvement in time-frequency resolution will offer superior performance in cochlear implants, as well as improvements in speech coding applications. An eight-band version of the proposed technique is presented and superior performance to existing techniques is shown.