No. A microphone is a nice extra for videos where you have a background noise, which can be really irritating for users, but isn’t always necessary.
But the most important part of this question is: Should you?
A microphone can be a lifesaver for people with low or no hearing who are deaf or hard of hearing or have other disabilities that prevent them from getting around. You should also make sure that it is something that they’re comfortable, useful, and can listen to. For example, don’t give them advice that uses a non-US or English dictionary, or give them the wrong music or video. And while you may find it helpful for them to hear themselves talk in a video, it’s best to avoid videos where you can be overhears a user saying things like “oh no!” or “you’re a nice girl”, or if your language is not your first language. If you want to record a user talking in their native language, don’t start with audio and video, but just start speaking.
Also, consider the audience of this tutorial. Many developers will be using this tutorial to make a video on their home screen instead of a YouTube page, which means that if a user sees their name in the video, they may click it to go to the end of the tutorial.
Finally, if you want to record a short video that’s intended for a non-technical audience, you can always use an app like Handycam that makes it super easy to record on any phone or tablet. Here’s a good tutorial to get you started on making your own tutorials.
When can I make a video, and what format should I upload?
Here are several video formats that you’ll find in many video services:
H.264 is the most common video format in the web browsers. It has support for multiple languages natively and is generally easier to set up than most other video formats.
FLV is a new video format designed specifically to work in browsers. It’s been designed with web and iPhone apps in mind, but it’s already available in browsers like Chrome and Firefox. It works in most browsers, even web-based apps; but it does use CSS, which may be distracting if you’re making it for the first time.
VP8 isn’t a video format necessarily made to work in web browsers, but it does work. It is a bit harder to set up and may be especially useful for videos made by students of
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