概述

语音识别和用户界面正成为当今新型数字设备的一个重要功能。瑞萨提供了一个语音识别解决方案,它不需要连接至互联网,可以帮助用户使用 AMI 语音命令、TMC 波束形成和噪声抑制技术制作高功能和差异化的产品,并可随时与瑞萨 RA 产品家族的单片机搭配使用。

主要特性

与传统产品相比,该解决方案实现了低时钟和小内存的语音识别,且无需互联网连接。

  • 波束形成
    • 通过降低背景噪声,利用前置话筒识别目标声音
    • 使用两个非定向话筒
    • 从“1:弱到 7:强”的可配置强度
  • 噪声抑制器
    • 降噪率最大为 30dB (约 1/30)
    • 按频带划分的可配置降噪率
  • 通过 Bluetooth® 低能量 (RL78/G1D) 模块进行控制
    • 能够控制支持 BLE 协议的产品
  • 可立即开始评估和开发
    • 已准备好为评估/开发提供硬件和软件样本

系统框图

由 A/D 转换器或 SSI(串行声音接口)和中间件实现。

语音识别解决方案框图

目标市场和应用

  • 智能家居
  • 楼宇自动化
  • 办公室自动化

AmiVoice 标志

 

TMC 标志

 

RA Ready 标识

 

2:02
Renesas provides a voice recognition solution with low clock and small memory size compared to conventional products, without the need for an internet connection.
2:02
Renesas provides a voice recognition solution with low clock and small memory size compared to conventional products, without the need for an internet connection.
2:02
Renesas provides a voice recognition solution with low clock and small memory size compared to conventional products, without the need for an internet connection.

标题类型最后更新日期文档大小
Voice Recognition Solution
Voice Recognition Solution for the Renesas RA Partner Ecosystem
PDF 2019年11月12日 444 KB

Disclaimer: THIS MATERIAL IS PROVIDED “AS-IS” FOR EVALUATION PURPOSES ONLY. RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (collectively, “Renesas”) DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. Renesas provides evaluation platforms and design proposals to help our customers to develop products. However, factors beyond Renesas' control, including without limitation, component variations, temperature changes and PCB layout, could significantly affect the product performance. It is the user’s responsibility to verify the actual circuit performance.