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translating by lujun9972
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How to Play Sound Through Two or More Output Devices in Linux
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======
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Handling audio in Linux can be a pain. Pulseaudio has made it both better and worse. While some things work better than they did before, other things have become more complicated. Handling audio output is one of those things.
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If you want to enable multiple audio outputs from your Linux PC, you can use a simple utility to enable your other sound devices on a virtual interface. It's a lot easier than it sounds.
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In case you're wondering why you'd want to do this, a pretty common instance is playing video from your computer on a TV and using both the PC and TV speakers.
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### Install Paprefs
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The easiest way to enable audio playback from multiple sources is to use a simple graphical utility called "paprefs." It's short for PulseAudio Preferences.
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It's available through the Ubuntu repositories, so just install it with Apt.
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```
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sudo apt install paprefs
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```
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When the install finishes, you can just launch the program.
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### Enable Dual Audio Playback
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Even though the utility is graphical, it's still probably easier to launch it by typing `paprefs` in the command line as a regular user.
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The window that opens has a few tabs with settings that you can tweak. The tab that you're looking for is the last one, "Simultaneous Output."
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![Paprefs on Ubuntu][1]
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There isn't a whole lot on the tab, just a checkbox to enable the setting.
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Next, open up the regular sound preferences. It's in different places on different distributions. On Ubuntu it'll be under the GNOME system settings.
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![Enable Simultaneous Audio][2]
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Once you have your sound preferences open, select the "Output" tab. Select the "Simultaneous output" radio button. It's now your default output.
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### Test It
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To test it, you can use anything you like, but music always works. If you are using a video, like suggested earlier, you can certainly test it with that as well.
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If everything is working well, you should hear audio out of all connected devices.
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That's all there really is to do. This works best when there are multiple devices, like the HDMI port and the standard analog output. You can certainly try it with other configurations, too. You should also keep in mind that there will only be a single volume control, so adjust the physical output devices accordingly.
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--------------------------------------------------------------------------------
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via: https://www.maketecheasier.com/play-sound-through-multiple-devices-linux/
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作者：[Nick Congleton][a]
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译者：[lujun9972](https://github.com/lujun9972)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.maketecheasier.com/author/nickcongleton/
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[1]:https://www.maketecheasier.com/assets/uploads/2018/01/sa-paprefs.jpg (Paprefs on Ubuntu)
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[2]:https://www.maketecheasier.com/assets/uploads/2018/01/sa-enable.jpg (Enable Simultaneous Audio)
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[3]:https://depositphotos.com/89314442/stock-photo-headphones-on-speakers.html
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@ -0,0 +1,61 @@
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Linux 下如何通过两个或多个输出设备播放声音
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======
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在 Linux 上处理音频是一件很痛苦的事情。Pulseaudio 的出现则是利弊参半。虽然有些事情 Pluseaudio 能够做的更好，但有些事情则反而变得更复杂了。处理音频的输出就是这么一件事情。
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如果你想要在 Linux PC 上启用多个音频输出，你只需要利用一个简单的工具就能在一个虚拟界面上启用另一个发音设备。这比看起来要简单的多。
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你可能会好奇为什么要这么做，一个很常见的情况是用电脑在电视上播放视频，你可以同时使用电脑和电视上的扬声器。
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### 安装 Paprefs
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实现从多个来源启用音频播放的最简单的方法是是一款名为 "paprefs" 的简单图形化工具。它是 PulseAudio Preferences 的缩写。
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该软件包含在 Ubuntu 仓库中，可以直接用 apt 来进行安装。
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```
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sudo apt install paprefs
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```
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安装后就能狗启动这款程序了。
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### 启动双音频播放
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虽然这款工具是图形化的，但作为普通用户在命令行中输入 `paprefs` 来启动它恐怕还是要更容易一些。
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打开的窗口中有一些标签页，这些标签页内有一些可以调整的设置项。我们这里选择最后那个标签页，"Simultaneous Output。"
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![Paprefs on Ubuntu][1]
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这个标签页中没有什么内容，只是一个复选框用来启用设置。
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下一步，打开常规的声音首选项。这在不同的发行版中位于不同的位置。在 Ubuntu 上，它位于 GNOME 系统设置内。
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![Enable Simultaneous Audio][2]
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打开声音首选项后，选择 "output" 标签页。勾选 "Simultaneous output" 单选按钮。现在它就成了你的默认输出了。
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### 测试一下
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用什么东西进行测试随你喜欢，不过播放音乐总是可行的。如果你像前面建议的一样，用视频来进行测试也没问题。
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一切顺利的话，你就能从所有连接的设备中听到有声音传出了。
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这就是所有要做的事了。此功能最适用于有多个设备（如 HDMI 端口和标准模拟输出）时。你当然也可以试一下其他配置。你还需要注意，只有一个音量控制器存在，因此你需要根据实际情况调整物理输出设备。
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--------------------------------------------------------------------------------
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via: https://www.maketecheasier.com/play-sound-through-multiple-devices-linux/
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作者：[Nick Congleton][a]
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译者：[lujun9972](https://github.com/lujun9972)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.maketecheasier.com/author/nickcongleton/
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[1]:https://www.maketecheasier.com/assets/uploads/2018/01/sa-paprefs.jpg (Paprefs on Ubuntu)
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[2]:https://www.maketecheasier.com/assets/uploads/2018/01/sa-enable.jpg (Enable Simultaneous Audio)
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[3]:https://depositphotos.com/89314442/stock-photo-headphones-on-speakers.html
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@ -1,32 +1,31 @@
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translating by lujun9972
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How to Read Outlook Emails by Python
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如何用 Python 读取 Outlook 中的电子邮件
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======
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when you start e-mail marketing , You need opt-in email address list. You have opt-in list. You are using email client software and If you can export your list from your email client, You will have good list.
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从事电子邮件营销，准入邮箱列表是必不可少的。你可能已经有了准入列表，同时还使用电子邮件客户端软件。如果你能从电子邮件客户端中导出准入列表，那这份列表想必是极好的。
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Now I am trying to explain my codes to write all emails into test file from your outlook profile.
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我使用一些代码来将 outlook 配置中的所有邮件写入一个临时文件中，现在让我来尝试解释一下这些代码。
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First you should import win32com.client, You need to install pywin32
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首先你需要倒入 win32com.client，为此你需要安装 pywin32
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```
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pip install pywin32
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```
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We should connect to Outlook by MAPI
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我们需要通过 MAPI 协议连接 Outlok
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```
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outlook = win32com.client.Dispatch("Outlook.Application").GetNamespace("MAPI")
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```
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Then we should get all accounts in your outlook profile.
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然后从 outlook 配置中获取所有的账户。
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```
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accounts= win32com.client.Dispatch("Outlook.Application").Session.Accounts;
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```
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Then You need to get emails from inbox folder that is named emailleri_al.
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在然后需要从名为 emaileri_al 的收件箱中获取邮件。
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```
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def emailleri_al(folder):
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messages = folder.Items
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@ -49,7 +48,7 @@ def emailleri_al(folder):
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pass
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```
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You should go to all account and get inbox folder and get emails
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你需要进入所有账户的所有收件箱中获取电子邮件
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```
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for account in accounts:
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global inbox
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@ -78,7 +77,7 @@ for account in accounts:
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print("*************************************************", file=
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```
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All Code is as the following
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下面是完整的代码
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```
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import win32com.client
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import win32com
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