The screen recording option in Quicktime is a useful feature for you to record a part of your screen or your entire screen in high quality for whatever purpose. The internal microphone or the built-in microphone option helps you in narration with the continuing screen capturing. You can view, edit and share it with ease.

However, this media player can also work as the screen recorder to capture the Mac screen. If QuickTime player crashes and stops working before saving the recording, you had better recover the unsaved recording right now. I'm making an aggregate device using a 4 i/o audio interface and Soundflower (2ch). And you can simplify steps in QuickTime screen recording with sound settings too.
Yet, despite its support from its base device, Quicktime has the least number of video and audio format compatibility than other players.

Start by opening Quicktime. Then it is time to know method to capture QuickTime audio without camera.

How to Free Record Screen with Sound on macOS Catalina and Mojave. I want all the signal to be summed into a single stereo pair. But it’s also a free screen recorder — you can use it to easily capture video and audio. Click the little arrow on the side of the Quicktime window.

Globally known that VLC media player is the most trustable application keep a place among the best one. An audio can enhance the file so if you wish to add an audio to this screen recorder, click on the downward facing chevron beside the red recording button as shown in the image above. At this time, you do not need to customize screen capture area. How to make a Quicktime screen recording with audio. How to capture the Mac screen with audio?

All you need to do it to distinguish your audio inputs, whether it is built-in microphone, external microphone or other core audio-compliant audio devices. To record screen with QuickTime just hit “File” – “New Screen Recording”, then tap the “Record” button which appears in red circle. If you prefer to capture the full screen simply click the screen anywhere to start capturing. But probably you already know them, and still want to use QuickTime to record screen and audio on Mac. Ever since macOS Mojave (10.14), Soundflower, the go to free sound plugin that overcame Apple Quicktime’s inability to include audio to screen recordings has ceased working with subsequent macOS’.
Under the microphone section, click on "Soundflower (2ch)."

Update: Catalina is realized and we can still record screen with QuickTime Player with sound for free, but it gets a bit different. Quicktime also allows you to record your audio through the built-in mic, thus you can record anything ranging from tutorials to simple videos explaining an issue you’re facing on your system.

No Limit on QuickTime Audio Recording – There is no apparent time limit when it comes recording audios with QuickTime. Maximum-quality recordings produce uncompressed files, which can use large amounts of storage space. Now open Quicktime Player and click on File>New Screen Recording.

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