• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE transactions on circuits and systems . I , Regular papers >CAR-Lite: A Multi-Rate Cochlear Model on FPGA for Spike-Based Sound Encoding
【24h】

CAR-Lite: A Multi-Rate Cochlear Model on FPGA for Spike-Based Sound Encoding

机译：CAR-LITE：用于基于峰值的FPGA的多速率耳蜗模型

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Filters in cochlear models use different coefficients to break sound into a 2-D time-frequency representation. On digital hardware with a single sampling rate, the number of bits required to represent these coefficients requires substantial computational resources such as memory storage. In this paper, we present a cochlear model operating at multiple sampling rates. As a result, fewer bits are required to represent filter coefficients on hardware as opposed to all the filters operating at a single sampling rate; with a 108-filter cochlear implementation, up to nine times fewer coefficients are needed. We present an implementation of this model in Matlab and on an Altera Cyclone V field-programmable gate array. We also demonstrate the capability of our model to encode sound at various intensity levels and with real-world signals.
机译：Cochlear模型中的过滤器使用不同的系数将声音分解为2-D时间频率表示。在具有单个采样率的数字硬件上，表示这些系数所需的比特数需要大量的计算资源，例如内存存储。在本文中，我们介绍了一种以多种采样率运行的耳蜗模型。结果，需要更少的比特来表示硬件上的滤波器系数，而不是以单个采样率运行的所有滤波器;通过108滤网耳蜗实现，需要较少的系数少9倍。我们在Matlab和Altera Cyclone V现场可编程门阵列中展示了该模型的实现。我们还展示了我们模型以各种强度水平编码声音和现实信号的能力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号