Speech processing in vocoder-centric cochlear implants.
Speech processing in vocoder-centric cochlear implants.
复制标题
DOI：
10.1159/000094648
复制
发表时间：
2006-01-01
影响因子：
--
通讯作者：
Loizou, Philipos C
中科院分区：
文献类型：
--
作者：
Loizou, Philipos C
最新的耳蜗植入处理器的原理类似于信道声码器的原理，信道声码器最初用于通过电话线传输语音，其带宽比传输未处理的语音信号所需的带宽小得多。概述了自20世纪90年代末以来为人工耳蜗植入提出的各种声码器为中心的处理策略，包括在不同的市售植入处理器中使用的策略。特别强调的是放在审查的策略，旨在提高潜在的更好的音乐感知音高信息。还描述了多年来提出的基于多麦克风和单麦克风输入的各种噪声抑制策略。
The principles of the most recent cochlear implant processors are similar to that of the channel vocoder, originally used for transmitting speech over telephone lines with much less bandwidth than that required for transmitting the unprocessed speech signal. An overview of the various vocoder-centric processing strategies proposed for cochlear implants since the late 1990s is provided including the strategies used in different commercially available implant processors. Special emphasis is placed on reviewing the strategies designed to enhance pitch information for potentially better music perception. The various noise suppression strategies proposed over the years based on multi-microphone and single-microphone inputs are also described.