(Audio)Netflix上的(Netflix)音频问题可能会破坏您的流媒体体验。如果您在Netflix上观看电影，而Netflix音频似乎不同步——无论是在视觉效果上有点超前或落后——我们将向您展示解决问题的九种方法。
我们涵盖了从智能手机到平板电脑、笔记本电脑、流媒体棒以及Fire(Fire) TV 和Apple TV等机顶盒等设备的修复。
1. 检查您的互联网连接
您需要高速互联网连接才能在Netflix上享受最佳流媒体体验。例如，每秒 3 兆比特 (3 Mbps ) 是在Netflix上流式传输标准清晰度(Standard Definition)(SD) 内容的推荐互联网下载速度(recommended internet download speed)。高清(High Definition)(HD) 和超高清(High Definition)（UHD或 4K）电影分别需要至少 5 Mbps和 25 Mbps的下载速度。
如果您的互联网连接较弱、速度慢或不稳定，您可能会注意到设备上的音频和视频输出存在差异。Netflix 也可能在视频播放期间抛出不同的错误代码。
幸运的是，您可以从Netflix应用程序或网络界面测试您的互联网连接速度。打开Netflix，点击您的个人资料图标(profile icon)，选择应用程序设置(App Settings)，然后点击互联网速度测试(Internet Speed Test)。
这将启动一个浏览器选项卡并将您重定向到Fast.com，这是 Netflix 的速度测试工具，可显示有关您的互联网连接的信息。结果页面上的速度是您当前连接的下载速度。单击(Click)或点击显示信息(Show info)以显示更多详细信息，例如上传速度、连接延迟、服务器位置等。
如果网络测试结果中的下载速度低于 Netflix 的建议，请关闭您设备上的其他数据密集型应用程序和进程，然后再次尝试流式传输内容。例如，暂停所有正在进行的下载可以帮助释放网络带宽并释放互联网速度。
如果您使用的是 Wi-Fi 连接，断开未使用或无法识别的设备与网络的连接也可以加快连接速度。但是，如果互联网连接仍然缓慢，请重新启动您的无线路由器，然后重试。
要加快蜂窝连接速度，请禁用热点网络共享、禁用您的VPN或让您的设备进入和退出飞行模式。如果没有任何效果，请参阅我们关于加速移动或蜂窝数据连接(speeding up mobile or cellular data connections)的教程。
2. 强制关闭 Netflix
如果智能手机或平板电脑上的Netflix App 上的Netflix音频不同步，请执行此操作。在 iPhone 和 iPad 上，双击主页按钮或从屏幕底部向上滑动并向上滑动Netflix预览以关闭应用程序。
要在Android上强制关闭Netflix，请前往“设置”(Settings) > “应用程序和通知(Apps & notifications)” > “所有应用程序(All Apps)” > “ Netflix ” > “强制停止”(Force Stop)，然后点击“确定(OK)” 。
智能电视(Smart TVs)和流媒体设备采用不同的技术和步骤来强制终止应用程序。有关强制关闭有问题的应用程序的详细说明，请参阅设备的说明手册或制造商的网站。
如果您使用 Fire TV 设备，请转到设置(Settings)>应用程序(Applications)>管理已安装的应用程序(Manage Installed Applications)> Netflix，然后单击强制停止(Force Stop)以终止 Netflix。
按下Home按钮，重新启动Netflix，然后验证应用程序的音频现在是否与视觉输出同步。
在 Apple TV 上，双击主屏幕按钮(Home button)，在应用切换器中选择Netflix，然后向上滑动遥控器的触摸板以强制关闭Netflix。返回(Return)Apple TV仪表板（按遥控器上的菜单(Menu)），重新打开Netflix，检查现在看电影时音频播放是否正常。阅读本指南以解决 Apple TV 上的 Netflix 问题，(fixing Netflix issues on Apple TV)了解更多故障排除步骤。
3. 清除 Netflix 的缓存
如果您设备上的应用程序缓存数据已损坏，您可能会在Netflix上流式传输内容时遇到此问题。如果您在 iPhone 或 iPad 上遇到此问题，只需关闭并重新打开Netflix 即可(Netflix)清除应用程序的缓存并有望解决问题。
以下是在Android(Android-powered)设备（智能手机、平板电脑或Chromebook(Chromebooks) ）上清除Netflix App 缓存的方法。
- 长按或右键单击Netflix App 图标，然后点击App info。
- 点击强制停止(Force Stop)，然后点击确定(OK)以终止应用程序。
- 选择Storage & cache（或Storage，具体取决于您设备的品牌、型号和操作系统。）
- 点击清除缓存(Clear Cache)按钮。
重新启动Netflix并检查您流式传输的内容的视觉和音频组件现在是否同步。
该方案同样适用于智能电视(TVs)、机顶盒、流媒体棒和加密狗。例如，Fire TV 设备还允许用户清除应用程序的缓存数据。(Fire)
请参阅说明手册或访问制造商的网站，了解如何清除应用程序的缓存数据。
4.禁用浏览器扩展
许多第三方扩展程序改善了(extensions improve the Netflix experience)您的网络浏览器上的 Netflix 体验。Netflix Party（现在称为Teleparty）是一种流行的聚会。Chrome扩展程序可让您与朋友同时观看电影和节目，从而打造虚拟影院体验。
这些扩展程序，如果存在错误或过时，可能会干扰视频播放并导致Netflix的音频在流式传输时不同步。禁用任何活动的Netflix插件并检查这是否会使Netflix的音频和视频输出恢复一致。
chrome://extensions粘贴到 Chrome 的地址栏中，按Enter，然后关闭所有与 Netflix 相关的第三方扩展。
5. 更新并重启您的浏览器
如果禁用Netflix扩展后问题仍然存在，请关闭并重新打开浏览器，然后重试。您还需要确保您的浏览器是最新的。
要更新Google Chrome或Microsoft Edge，请分别转到设置(Settings)>关于 Chrome(About Chrome)或设置(Settings)>关于 Microsoft Edge(About Microsoft Edge)。对于Mozilla Firefox，前往设置(Settings)>常规(General)> Firefox 更新(Firefox Updates)并单击检查更新(Check for updates)。
6. 更新 Netflix
Netflix更新附带错误修复和性能改进。如果Netflix的音频在应用上不断出现不同步，请前往您设备的应用商店并将Netflix更新到最新版本。
7. 更新您设备的音频驱动程序(Audio Driver)
如果音频延迟问题影响Windows PC 上的所有应用程序，更新音频驱动程序可能会解决问题。将您的 PC 连接到 Internet，然后按照以下步骤操作：
- 按Windows 键(Windows key)+ X并选择Device Manager。
- 展开声音、视频和游戏控制器(Sound, video and game controllers)类别，右键单击音频驱动程序，然后选择更新驱动程序(Update driver)。
- 选择自动搜索驱动程序(Search automatically for drivers)。
8. 更新您的设备
保持设备更新通常总是一个好主意。例如，更新Windows可以在您的设备上安装最新的声音驱动程序并修复音频延迟问题。(Windows)在流媒体设备、智能手机和智能电视(TVs)上安装操作系统或固件更新也可以消除导致音频问题的错误。
前往您设备的设置菜单并安装任何可用的软件或固件更新。
9.重新启动您的设备
有时，设备重启会使 Netflix 的音频恢复正常。关闭(Shut)您的设备，等待一两分钟，然后重新打开电源。
通知 Netflix
问题可能出在电影文件上。因此，如果音频延迟是特定电影或电视节目特有的，请前往您帐户的观看活动页面(Viewing Activity page)并将问题报告给 Netflix。
Netflix Audio Out of Sync? 9 Quick Fixes
Audio issues on Netflix can ruin your streaming experience. If you’re watching a moνie on Netflix and the Netflix audio seems out of sync – either a bit ahead or behind the visuals – we’ll show you nine waуs to fix the problem.
We cover fixes for devices ranging from smartphones to tablets, laptops, streaming sticks, and set-top boxes like Fire TV and Apple TV.
1. Check Your Internet Connection
You need a high-speed internet connection to enjoy an optimal streaming experience on Netflix. For example, 3 megabits per second (3 Mbps) is the recommended internet download speed for streaming Standard Definition (SD) content on Netflix. High Definition (HD) and Ultra-High Definition (UHD or 4K) movies require at least 5 Mbps and 25 Mbps download speeds, respectively.
If your internet connection is weak, slow, or unstable, you might notice a disparity between audio and video output on your device. Netflix might also throw off different error codes during video playback.
Luckily, you can test your internet connection speed from the Netflix app or web interface. Open Netflix, tap your profile icon, select App Settings, and tap Internet Speed Test.
That’ll launch a browser tab and redirect you to Fast.com, Netflix’s speed test tool that displays information about your internet connection. The speed on the result page is your connection’s current download speed. Click or tap Show info to reveal more details like upload speed, connection latency, server location, etc.
If the download speed in the network test results is lower than Netflix’s recommendations, close other data-heavy apps and processes on your device and try streaming content again. For example, suspending all ongoing downloads can help free up network bandwidth and free up internet speed.
If you’re on a Wi-Fi connection, disconnecting unused or unrecognized devices from the network can also speed up connection speed. But if the internet connection remains sluggish, reboot your wireless router and try again.
To speed up a cellular connection, disable hotspot tethering, disable your VPN, or put your device in and out of airplane mode. If nothing works, refer to our tutorial on speeding up mobile or cellular data connections.
2. Force Close Netflix
Do this if Netflix audio is out of sync on the Netflix app on your smartphone or tablet. On iPhones and iPad, double-click the home button or swipe up from the bottom of the screen and swipe up the Netflix preview to close the app.
To force-close Netflix on Android, head to Settings > Apps & notifications > All Apps > Netflix > Force Stop and tap OK.
Smart TVs and streaming devices adopt different techniques and steps for forcefully terminating an app. Refer to your device’s instruction manual or the manufacturer’s website for detailed instructions on force-closing problematic applications.
If you use a Fire TV device, go to Settings > Applications > Manage Installed Applications > Netflix and click Force Stop to terminate Netflix.
Press the Home button, relaunch Netflix, and verify if the app’s audio is now in sync with visual output.
On Apple TV, double-press the Home button, select Netflix in the app switcher, and swipe the remote’s touchpad upwards to force-close Netflix. Return to the Apple TV dashboard (press Menu on the remote), reopen Netflix, check if the audio playback now works correctly when watching a movie. Read this guide on fixing Netflix issues on Apple TV for more troubleshooting steps.
3. Clear Netflix’s Cache
You might encounter this issue streaming content on Netflix if the app’s cache data on your device has become corrupt. If you’re experiencing this issue on your iPhone or iPad, merely closing and reopening Netflix will clear the app’s cache and hopefully resolve the problem.
Here’s how to clear the Netflix app’s cache on Android-powered devices—smartphones, tablets, or Chromebooks.
- Long-press or right-click the Netflix app icon and tap the App info.
- Tap Force Stop and then tap OK to terminate the app.
- Select Storage & cache (or Storage, depending on your device’s brand, model, and operating system.)
- Tap the Clear Cache button.
Relaunch Netflix and check if the visual and audio components of content you stream are now in sync.
This solution is also applicable to smart TVs, set-top boxes, streaming sticks, and dongles. Fire TV devices, for instance, also allow users to clear an app’s cache data.
Refer to the instruction manual or visit the manufacturer’s website to learn how to clear an app’s cache data.
4. Disable Browser Extension
Many third-party extensions improve the Netflix experience on your web browser. Netflix Party (now called Teleparty) is a popular one. The Chrome extension creates a virtual cinema experience by letting you watch movies and shows with your friends simultaneously.
These extensions, if bug-ridden or outdated, can interfere with video playback and cause Netflix’s audio to go out of sync when streaming. Disable any active Netflix plugin and check if that puts Netflix’s audio and video output back in unison.
Paste chrome://extensions in Chrome’s address bar, press Enter, and toggle off all Netflix-related third-party extensions.
5. Update and Restart Your Browser
If the issue persists after disabling Netflix extensions, close and reopen your browser and try again. You also need to ensure your browser is up-to-date.
To update Google Chrome or Microsoft Edge, go to Settings > About Chrome or Settings > About Microsoft Edge, respectively. For Mozilla Firefox, head to Settings > General > Firefox Updates and click Check for updates.
6. Update Netflix
Netflix updates ship with bug fixes and performance improvements. If Netflix’s audio constantly goes out of sync on the app, head to your device’s app store and update Netflix to the latest version.
7. Update Your Device’s Audio Driver
If the audio lag issues affect all applications on your Windows PC, updating the audio drivers might fix the problem. Connect your PC to the internet and follow the steps below:
- Press Windows key + X and select Device Manager.
- Expand the Sound, video and game controllers category, right-click the audio driver, and select Update driver.
- Select Search automatically for drivers.
8. Update Your Devices
It’s usually always a good idea to keep your device updated. Updating Windows, for instance, can install the latest sound drivers on your device and fix audio lag issues. Installing OS or firmware updates on streaming devices, smartphones, and smart TVs can also eliminate bugs causing audio issues.
Head to your device’s settings menu and install any available software or firmware update.
9. Reboot Your Device
Sometimes, a device reboot will restore Netflix’s audio to normalcy. Shut down your device, wait for a minute or two, and power it back on.
Notify Netflix
It’s possible that the problem is with the movie file. So, if the audio lag is peculiar to a specific movie or TV show, head to your account’s Viewing Activity page and report the issue to Netflix.
