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Guide: How to Add Automatic Closed Captions to your Videos



Video consumption continues to grow due to the rise of social media, vlogging, and streaming services. Gone are the days of going with whatever show is airing on the television screen-you can now choose the type of content you want to watch.

One of the essential parts of modern video is closed captions. Some people might not see them as a valuable part of their viewing experience, but they come with many advantages.

Why are closed captions so important?

Simply put, captions are the process of separating the text into frames. Each of these is time-coded to match a specific portion of an audio or video. They were designed to allow people consuming media to intake context and information better.

There is a lot of valuable information presented in online content these days, and closed captions allow videos to be accessible to deaf people or those with hearing difficulties. Besides this, they also enable people to have a better grasp of the content they are watching. This function is beneficial for information-heavy videos or movies with darker lighting. Those who are watching videos in noisy areas can also use them. Captions allow them to follow instructional guides or watch the news even without hearing the audio.

Businesses and companies may also benefit from closed captions because of a video’s effect to search engine optimization. Social media platforms have become a hotspot for videos, and many users watch without turning the sound on. Having videos that are well-captioned can keep a brand’s identity in the public eye, especially if the content is engaging.

How can I use Audext to caption videos?

For people looking to transcribe speech for their videos, Audext is a convenient online tool that requires no installation. It can be accessed through any web browser and has an easy-to-use interface ideal for transcription.

While it does not directly transcribe videos or generates words, the web-based service is an excellent way for those looking to turn audio to text more conveniently. The major audio formats are all supported, and there is an option for a free trial.

Once the transcription is finished, users can fine-tune the results to match their desired outcome. Words can be matched to an exact timestamp in the audio, right where you would click play. Audext also has a sleek, modern dashboard that helps users recognize various speakers even in noisier situations.

Which caption format is right for my video?

Like most digital files, there are varying types of closed captions. These might overwhelm you at first, but the most used are the simple closed caption formats. Examples include SRT and WebVTT. They are the ones used by most media players and video websites. Closed captions in these formats can easily be created through Notepad or TextEdit.

Both SRT and WebVTT look similar to scripts, with each sentence or line accompanied by timestamps. SubRip Subtitle (.srt) files are the most common type of closed captions and include a frame number, start and end timecodes, and the text itself. They also have blank links marking the start of any new sequences.

The Web Video Text Track (.vtt) is another standard caption format often used for videos in HTML5. The significant difference between a WebVTT and an SRT is the addition of descriptions and metadata. Video editors use them for comments, as well as supplementary information like frame placement.

Whether or not you like having them around, there is no doubt that closed captions are helpful to many people. However, transcribing audio to text can be a tedious process. In the past, it took much time to synchronize text with an exact moment in the video. There is also the task of proofreading and error checking since typographical mistakes can affect the viewing experience. In addition, there will always be costs due to fees. It is much more cost-efficient to use a service with all the audio-to-text tools you need.

Journalists and podcasters who rely on audios to create articles and scripts are just some people who can benefit from tools like Audext. Students who use voice recordings for notes may also find it easier to follow through with their lessons, as well as psychologists and health care professionals conducting case studies.


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