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<title>usbd_audiov2 — CherryUSB 1.5.3 documentation</title>
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<p class="caption" role="heading"><span class="caption-text">USB 基本知识点</span></p>
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<li class="toctree-l1"><a class="reference internal" href="../usb/usb2.0_basic.html">USB 基本概念(2.0 为主)</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../api/api_port.html">主从驱动</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../api/api_config.html">USB CONFIG 说明</a></li>
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</ul>
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<p class="caption" role="heading"><span class="caption-text">Class 指南</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../class/class_cdc.html">CDC</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../class/class_audio.html">UAC</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../class/class_video.html">UVC</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../class/winusb.html">WINUSB</a></li>
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<p class="caption" role="heading"><span class="caption-text">例程说明</span></p>
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<ul class="current">
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<li class="toctree-l1"><a class="reference internal" href="usbd_cdc_acm.html">usbd_cdc_acm</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbd_hid.html">usbd_hid</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbd_msc.html">usbd_msc</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbd_rndis.html">usbd_rndis</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbd_ecm.html">usbd_cdc_ecm</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbd_audiov1.html">usbd_audiov1</a></li>
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<li class="toctree-l1 current"><a class="current reference internal" href="#">usbd_audiov2</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbd_video.html">usbd_video</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbd_webusb.html">usbd_webusb</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbd_adb.html">usbd_adb</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbh_serial.html">usbh_serial</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbh_hid.html">usbh_hid</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbh_msc.html">usbh_msc</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbh_net.html">usbh_net</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbh_bluetooth.html">usbh_bluetooth</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbh_wifi.html">usbh_wifi</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usbd_vendor.html">vendor device 驱动编写</a></li>
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<li class="toctree-l1"><a class="reference internal" href="usb_otg.html">OTG 功能的使用</a></li>
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</ul>
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<p class="caption" role="heading"><span class="caption-text">USBIP 介绍</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../usbip/ohci.html">OHCI</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../usbip/ehci.html">EHCI</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../usbip/xhci.html">XHCI</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../usbip/chipidea.html">CHIPIDEA</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../usbip/dwc2.html">DWC2</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../usbip/musb.html">MUSB</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../usbip/fotg210.html">FOTG210</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../usbip/cdns2.html">CDNS2</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../usbip/cdns3.html">CDNS3</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../usbip/dwc3.html">DWC3</a></li>
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</ul>
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<p class="caption" role="heading"><span class="caption-text">工具使用</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../tools/index.html">chryusb_configurator</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../tools/index.html#usb-protocol-suite">力科 USB Protocol Suite</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../tools/index.html#wireshark">Wireshark</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../tools/index.html#audacity">Audacity</a></li>
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</ul>
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<p class="caption" role="heading"><span class="caption-text">版本说明</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../version.html">版本说明</a></li>
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<p class="caption" role="heading"><span class="caption-text">性能展示</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../show/index.html">性能展示</a></li>
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<section id="usbd-audiov2">
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<h1>usbd_audiov2<a class="headerlink" href="#usbd-audiov2" title="Link to this heading"></a></h1>
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<p>在使用 UAC2.0 时，需要注意以下几点：</p>
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<ul class="simple">
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<li><p>在使用windows 时，当修改描述符任意参数时，必须同步修改字符串描述符，并且卸载驱动，否则windows会认为设备未更改，继续使用旧的驱动，导致无法识别设备。Linux 不受此限制。</p></li>
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<li><p>QQ 群文件中下载 RemoveGhostDev64.exe 可以自动删除所有 USB 注册的驱动信息，无需第一步</p></li>
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<li><p>windows 10 uac2.0 功能不完善，请使用 windows 11 测试uac2.0 功能。Linux 不受此限制</p></li>
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<li><p>windows 中设置的采样率表范围在多通道时（通道数大于2）计算有误，比如设置 8K~96K，那么实际是大于等于8K 小于96K，而非小于等于96K。Linux 不受此限制</p></li>
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