<p><em><em>Nordic</em></em><em><em>宣布进入蓝牙音频市场，提供平台支持即将发布的</em></em><em><em>LE Audio</em></em><em><em>高质量无线音频规范</em></em><em><em> </em></em></p>
<p><span>挪威奥斯陆</span><span> – 2020</span><span>年</span><span>2</span><span>月</span><span>3</span><span>日</span><span> – Nordic Semiconductor</span><span>宣布</span><span>与总部位于</span><span>美国</span><span>加利福尼亚州圣地亚哥的低功耗</span><span>蓝牙</span><em><em> </em></em><span>(</span><em><em>Bluetooth</em></em><span>®</span><span> Low Energy /Bluetooth LE)</span><span>堆栈开发商</span><span>PacketPack</span><span>合作推出蓝牙</span><span>LE Audio</span><span>评测平台。这款</span><span>LE Audio</span><span>解决方案展示了</span><span>LE Audio</span><span>的优势，旨在支持蓝牙技术联盟</span><span>(SIG)</span><span>即将在</span><span>2020</span><span>年上半年发布的全新</span><span>LE Audio</span><span>规范。</span></p>
<p><span>当前的蓝牙无线音频解决方案采用传统的蓝牙技术，而</span><span>LE Audio</span><span>则引入了基于低功耗蓝牙无线电的新型高质量无线音频解决方案。</span><span>LE Audio</span><span>承诺提供比传统蓝牙音频更低的功耗，显着延长电池寿命，带来更好的音频质量，并实现能够同时传输无线数据和音频流的设备。这项技术还支持通过广播以进行音频共享。</span></p>
<p><span>Nordic</span><span>的</span><span>LE Audio</span><span>解决方案包括基于其</span><span>nRF52832</span><span>低功耗蓝牙系统级芯片</span><span>(SoC)</span><span>的硬件参考设计、音频</span><span>IC</span><span>领导厂商</span><span>Cirrus Logic</span><span>的</span><span>CS47L35</span><span>智能编解码器以及集成式低功耗音频</span><span>DSP</span><span>、</span><span>Packetcraft</span><span>支持</span><span>LE Audio</span><span>的低功耗蓝牙主机堆栈和链路层，以及</span><span>LE Audio</span><span>软件开发套件</span><span>(SDK)</span><span>。该平台可让开发人员开始进行将这项技术用于蓝牙</span><span>LE Audio</span><span>产品的评测，比如无线扬声器、耳挂式耳机和真正的无线</span><span>“</span><span>耳塞</span><span>”</span><span>。</span></p>
<p><span>这款</span><span>LE Audio</span><span>评测平台经设计可在信号源</span><span>(</span><span>比如音频源、语音呼叫耳机源和对等呼叫</span><span>)</span><span>或接收端</span><span>(</span><span>音频回放、耳机回放和对等呼叫</span><span>)</span><span>中运行。需要使用一对设备</span><span>(</span><span>信号源和接收端</span><span>)</span><span>来完成</span><span>LE Audio</span><span>链接。</span><span>Nordic</span><span>的</span><span>LE Audio</span><span>解决方案还带有</span><span>Cirrus Logic</span><span>的</span><span>SoundClear®</span><span>功能，用于减少上行链路的噪声和回声消除、增强播放、语音控制和增强听力。评测平台包括一个最多可容纳六个麦克风或两个扬声器的声学连接器、一个</span><span>3.5-mm</span><span>耳机插孔、一个</span><span>3.5-mm</span><span>源插孔以及一个用于充电、调试</span><span>(</span><span>使用</span><span>Nordic</span><span>开发工具</span><span>)</span><span>和声学调整</span><span>(</span><span>使用</span><span>Cirrus LogicWISCE®</span><span>平台</span><span>)</span><span>的</span><span>USB</span><span>插孔。将音频从源设备以无线方式流传输到无线</span><span>(</span><span>接收</span><span>)</span><span>耳塞时，与现今的现成传统蓝牙解决方案相比，</span><span>LE Audio</span><span>评测平台可将电池寿命延长大约</span><span>40%</span><span>。</span></p>
<p><span>Nordic</span><span>是蓝牙</span><span>LE</span><span>解决方案的市场领导者，而</span><span>LE Audio</span><span>评测平台的发布，标志着该公司进入了全新的</span><span>LE Audio</span><span>领域。该解决方案使工程师能够使用</span><span>Nordic</span><span>成熟的硬件、软件和开发工具，充分发挥</span><span>LE Audio</span><span>出色的质量、功能和用例增强特性。</span></p>
<p><span>Nordic Semiconductor</span><span>产品管理总监</span><span>Kjetil Holstad</span><span>表示：</span><span>“</span><span>传统的蓝牙音频提供了令人满意的无线声音解决方案，但</span><span>LE Audio</span><span>更上一层楼，具有显着的增强特性。这势必成为令人兴奋的全新领域，</span><span>Nordic</span><span>计划通过提供领先的</span><span>LE Audio</span><span>解决方案来发挥关键作用。推出</span><span>LE Audio</span><span>评测平台是其中的第一步。</span><span>”</span></p>
<p><span>“Nordic</span><span>傲视同群的</span><span>nRF52</span><span>系列</span><span>SoC</span><span>是</span><span>LE Audio</span><span>解决方案的理想无线基础。通过采用</span><span>Cirrus Logic</span><span>的</span><span>CS47L35</span><span>智能编解码器，我们还可以确保该平台满足尽可能高的音频性能标准。</span><span>”</span></p>
<p><span>蓝牙技术联盟首席执行官</span><span>Mark Powell</span><span>表示：</span><span>“</span><span>蓝牙社群将会继续推动技术向前发展，以满足不断变化的市场需求并创造新的机会。</span><span>LE Audio</span><span>是一个很好的示例。它不仅增强了现有蓝牙音频产品的性能，而且引入了音频共享功能，这个全新音频用例有望改变我们体验音频并与周围世界联系的方式。</span><span>”</span></p>
<p><span>Packetcraft</span><span>创始人兼首席执行官</span><span>John Yi</span><span>表示：</span><span>“</span><span>我们非常高兴与</span><span>Nordic Semiconductor</span><span>合作开发创新的</span><span>LE Audio</span><span>评测平台。该平台使</span><span>Packetcraft</span><span>能够率先开发出世界上最早通过</span><span>LE Audio</span><span>广播进行音频共享演示的平台之一。</span><span>Packetcraft</span><span>致力于提供领先的蓝牙技术，并且尽早为客户提供</span><span>LE Audio</span><span>之类的新规范功能。</span><span>”</span></p>
<p><span>Nordic</span><span>是超低功耗无线技术的先驱企业，并且是低功耗蓝牙规范的主要贡献者，也是提供蓝牙</span><span>LE</span><span>解决方案的市场领导者。</span><span>Nordic</span><span>的开发工具消除了</span><span>RF</span><span>工程的复杂性，从而使非专业的</span><span>RF</span><span>开发人员也可以快速构建无线创新原型设计。</span><span>nRF52832 SoC</span><span>结合了一个</span><span>64MHz</span><span>的</span><span>32</span><span>位</span><span>Arm®Cortex®M4F</span><span>处理器和</span><span>2.4GHz</span><span>多协议无线电，以及</span><span>512kB</span><span>闪存和</span><span>64kB RAM</span><span>。</span><span>Nordic</span><span>的蓝牙</span><span>5</span><span>认证</span><span>RF</span><span>软件协议栈</span><span>S132 SoftDevice</span><span>附随这款</span><span>SoC</span><span>一起提供。</span></p>
<p><span>Packetcraft</span><span>的使命是为所有人创建更快、更好、更简便的嵌入式堆栈。作为低功耗蓝牙技术的领导者，该公司提供领先的、开放的，经过商业验证的合格软件和服务。</span><span>Packetcraft</span><span>的低功耗蓝牙软件包括具有蓝牙链接层和</span><span>IEEE 802.15.4 MAC</span><span>的多协议控制器、蓝牙主机堆栈和</span><span>GATT</span><span>配置文件，以及蓝牙</span><span>mesh</span><span>配置文件和模型。</span></p>
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<p><strong><strong>关于</strong></strong><strong><strong>Nordic Se</strong></strong><strong><strong>micon</strong></strong><strong><strong>ductor ASA</strong></strong></p>
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<p><strong><strong>关于</strong></strong><strong><strong>Cirrus Logic CS47L35</strong></strong></p>
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