想要将一些旧盒式磁带转换为数字 MP3( old cassette tapes to digital MP3s)吗？想使用语音听写软件？想从流媒体音乐的网站(website that streams music)录制一些音频吗？想将您的 PC 用作临时卡拉 OK 机吗？让 Windows 录制所有这些声音并不总是那么容易或直接。
Windows允许使用多个音频设备，这一“功能”通常会使音频问题的故障排除变得不必要地复杂化。录制声音时尤其如此，因为Windows一次只能从一个源录制。
单个音频设备可能有两个或三个音频输入：一个模拟（单声道）麦克风输入、一个模拟立体声“线路输入”或辅助输入，有时还有一个数字S/PDIF输入。此外，语音听写耳机和电视调谐器卡等特殊设备也有自己的输入。
Windows 中的声音输入
所有音频设备的所有输入都列在控制面板(Control Panel)➝声音(Sound)➝录音(Recording)选项卡中。
如果您选择麦克风并单击Properties，您将能够调整很多设置。在“常规(General)”选项卡上，您可以获得有关设备的一些基本信息，如果您愿意，可以在此处选择禁用它。更有趣的功能在“聆听(Listen)”选项卡上。
这是一个很酷的功能，您可以将麦克风录制的声音直接播放到扬声器。因此，当您对着麦克风讲话时，声音将实时播放到您的扬声器。显然，如果您使用耳机，这会更好，这样扬声器的声音就不会反馈到麦克风中。
选中收听(Listen)此设备框，然后选择要通过其播放音频的设备。默认情况下，它设置为您的默认播放设备，通常是您的耳机或扬声器。如果您有多个播放设备，您可以从下拉列表中进行选择。单击应用(Apply)按钮，麦克风拾取的任何声音都应通过扬声器实时播放。
在级别(Levels)选项卡上，您可以根据需要调整麦克风的灵敏度。在高级(Advanced)选项卡上，您可以更改音频的默认格式。默认情况下，它设置为 1 通道、16 位和 44100 Hz，即 CD 质量。还有许多其他选项，包括DVD质量，如果您有高质量的麦克风，您可以使用这些选项。
如果您返回录音(Recording)选项卡，选择麦克风(Microphone)并单击配置(Configure)，将出现语音识别(Speech Recognition)对话框。在这里，您可以设置Windows语音控制，训练计算机更好地理解您的声音，并正确设置麦克风以进行语音识别。
最后，回到Recording选项卡，您可能会注意到一个名为Stereo Mix的选项。如果您没有此选项，则表示您的声卡不支持该功能。
那么它有什么作用呢？基本上(Basically)，它可以让您录制计算机上正在播放的任何声音。例如，如果您正在计算机上观看YouTube视频，您将如何录制音频？您可以尝试在扬声器旁边放置一个麦克风，但这不是录制该音频的理想方式。Stereo Mix可以让您在计算机上打开一个录音程序，选择Stereo Mix作为输入，它会记录您计算机发出的任何声音。
如果您使用默认的录音机(Sound Recorder)或录音机( Voice Recorder)( Windows 10 ) 应用程序，只要您先禁用麦克风，它们就会自动从Stereo Mix录制。(Stereo Mix)如果您使用的是Audacity之类的程序，只需将声音输入更改为Stereo Mix即可。使用此输入，您可以录制计算机上播放的音乐、计算机上播放的视频的音频或 PC 上的任何其他声音。
希望这能让您对Windows(Windows)中的不同音频输入有一个很好的了解，以及如何使用它们来录制您需要的音频。如果您有任何问题，请随时发表评论。享受！
Enable Microphone, Line-In Audio, and Stereo Mix in Windows
Want to convert some of those old cassette tapes to digital MP3s? Want to use voice dictation software? Want to record some audio from a website that streams music? Want to use your PC as a makeshift karaoke machine? Getting Windows to record all those sounds isn’t always so easy or straightforward.
Windows allow more than one audio device, a “feature” that usually makes troubleshooting audio problems needlessly complicated. This is particularly true when recording sound, given that Windows can only record from one source at a time.
A single audio device may have two or three audio inputs: an analog (mono) microphone input, an analog stereo “Line-In” or auxiliary input, and sometimes a digital S/PDIF input. Also, special devices, like voice dictation headsets and TV tuner cards, have their own inputs.
Sound Inputs in Windows
All the inputs for all your audio devices are listed in Control Panel ➝ Sound ➝ Recording tab.
If you select the microphone and click on Properties, you’ll be able to adjust quite a few settings. On the General tab, you get some basic information about the device and you can choose to disable it here if you like. The more interesting feature is on the Listen tab.
This is a cool feature whereby you can play the sound that is being recorded by your microphone directly to your speakers. So as you talk into the microphone, the sound will be played in real time to your speakers. Obviously, this will work much better if you are using headphones, so that the sound from the speakers doesn’t feed back into the microphone.
Check the Listen to this device box and select the device you want to play the audio back through. By default, it’s set to your default playback device, which will normally be your headphones or speakers. If you have multiple playback devices, you can choose from the dropdown list. Click the Apply button and any sound picked up by your mic should play through your speakers in real time.
On the Levels tab, you can adjust the sensitivity of the microphone depending on your needs. On the Advanced tab, you can change the default format for the audio. By default, it’s set to 1 channel, 16 bit and 44100 Hz, which is CD quality. There are many other options, including DVD quality, which you can use if you have a high-quality microphone.
If you go back to the Recording tab, select Microphone and click on Configure, the Speech Recognition dialog will appear. Here you can setup voice control for Windows, train the computer to understand your voice better and setup your microphone properly for speech recognition.
Lastly, back on the Recording tab, you may notice an option called Stereo Mix. If you don’t have this option, it means your sound card doesn’t support the feature.
So what does it do? Basically, it lets you record any sound that is playing on your computer. For example, if you are watching a YouTube video on your computer, how would you record the audio? You could try to place a microphone next to your speakers, but that’s not an ideal way to record that audio. Stereo Mix will let you open a sound recording program on your computer, choose Stereo Mix as the input and it’ll record whatever sound comes out of your computer.
If you use the default Sound Recorder or Voice Recorder (Windows 10) apps, they will automatically record from Stereo Mix as long as you disable the microphone first. If you’re using a program like Audacity, just change the sound input to Stereo Mix. Using this input, you can record music playing on your computer, audio from a video playing on your computer, or any other sound from your PC.
Hopefully, this gives you a good overview of the different audio inputs in Windows and how you can use them to record the audio you need. If you have any questions, feel free to post a comment. Enjoy!
