In this complete guide we will discoverhow to record the computer screenusingOBS Studio(Open Broadcaster Software), a professional and completely free program. Whether you want to create a tutorial, record a gameplay or save a videoconference, OBS is the ideal tool for achieving high quality results.
OBS Studio compatibility onWindows, macOS and Linux

OBS Studiois an open source software, completely free and free of limitations or watermarks. To start withrecord your desktop, your computer must meet some minimum requirements: you need a Windows 10 or higher operating system, macOS 11.0 or later, or a supported Linux distribution (you can check the updated technical details directly on theoBS Project official website). Although there are no rigid hardware constraints, the use of a modern processor and a dedicated video card will dramatically reduce the risk of lag and slowdowns during video acquisitions.
In addition to being the perfect solution forpC screen recording, OBS Studio integrates advanced features forlive broadcast (streaming)on famous platforms like YouTube, Twitch and Facebook Live.
The real strength of this program lies in the management of multimedia sources. It combines different video and audio sources in real time. For example, it is possible to overlay the recovery ofwebcamthe recording of the monitor, or capture the microphone audio along with computer system sounds, creating a real virtual direction.
How to download and install OBS

The first step to start is to download the program. Connect to the official OBS download page and select the operating system in use on your device. By clicking on the Windows icon, macOS or Linux, you will immediately start downloading the most up-to-date installation file for your platform.
At the end of the download, open the executable file just obtained (for example,OBS-Studio-Full-Installer. exin Windows environment or package. dfor the Mac ecosystem).

If you useWindows, start the wizard by clicking onNext. Accept the terms of use of the software by clicking againNext, choose the destination folder and press the buttonInstallto proceed. Once the operation is finished, click onFinishto close the setup and automatically launch OBS Studio.
For usersApple, the procedure onmacOSis just as intuitive: just drag the OBS Studio icon inside the folderApplications. Next, double-click the application (confirming the opening via the buttonOpen itto authorize third-party software according to protocolsapple Security). Now you're ready to start recording.
Practice Guide: How to Record Screen with OBS Studio

With the application started, the time has come to run the initial configuration to optimize thevideo capture and audio acquisition. The instructions you will find below are identical for both the Windows interface and macOS interface.
At the first start, the software will show a message that proposes the Automatic Guided Configuration. Click onYesto continue. Since the goal of this tutorial is to save files locally, select the optionOptimizes only for recordings, I don't make directand press the buttonCome on.
In the next screen related to the video settings, I suggest you keep the parameters proposed automatically (which will detect the native resolution of your screen) and confirm by pressingCome on. Finally, click onApply settingsto save this preliminary configuration.

Your work environment is now configured. We see concretely how to train the program forcapture your PC desktop.
Positioned in the sectionSources, located at the bottom left of the interface, and click on the button+to open the capture options menu. Select the itemCapture the screenand click onOKin the dialog box that will appear to confirm the addition.

A preview of the recording will now be shown. Through this window you can decide to hide the mouse pointer by removing the check from the boxCapture the cursor. In case of multi-monitor configurations, the drop-down menuScreeningwill let you select exactly which display to record. Once satisfied, press againOK.
There is also the option to record a single window, useful if you want to show only a certain application (such as a presentation or browser) by obscuring the rest of the desktop. To do this, press the button+in the windowSourcesand selectCapture the window.
Confirmation withOKand, through the appropriate drop-down menu, choose the specific window that the software will have to frame. Here you can also exclude the cursor by removing the appropriate check. End the changes, click onOK.

Capturing the entire screen in which OBS is opened, you may notice an infinity “mirror effect”. This happens because the program is recovering itself in loops. Do not alarm yourself: this visual effect will disappear as soon as you reduce to OBS icon to switch to the program you really want to show.
To enrich your video, you can add your videowebcamto register in miniature (picture-in-picture effect). In the windowSources, click on the button+and select the itemVideo capture device.
Click onOKand, from the new property screen, select the name of your webcam from the drop-down menuDevice. Confirm again withOKto add it to the active source list.
You can customize the location of the webcam by holding the left button on the video preview and dragging it into the corner of the screen you prefer. Similarly, use small red squares on the edges of the pane to resize the shot at your liking.

Before starting the “ciak”, it is essential to control the audio. See sectionAudio mixer, located at the bottom of the control window.
In this area you will find the channels that regulate theDesktop Audio(such as music, system sounds or audio of a game) and the channel dedicated to yourMicrophoneconnected to the computer.

To disable or reactivate the volume of a specific sound source, click on the speaker icon placed under the decibel levels. You can use the sliding blue bar to balance the sound power, ensuring that the peaks do not enter the red zone to avoid annoying distortions.
As last step, you have to set the technical quality of the file. Click on the buttonSettings, located at the bottom right, and choose the tabExitfrom the side navigation menu.
In the section dedicated toRegistration, use the buttonBrowseto choose the folder of the PC where all future videos will be saved. With regard toQuality of registration, the advice is to keep the default settingHigh quality, medium file size, lowering it only in case of extremely long recordings or limited disk space.
Make sure you select aRecording formatappropriate. I suggest you set the formatmp4ormk, as they offer the best hardware compatibility: you will have no problem sharing videos on smartphones, smart TVs or uploading them directly online on social media or YouTube.

Ultimate your preferences, press the buttonApplyand thenOKto return to the main screen. Everything is ready: click on the buttonLaunch the registrationpresent in the controls at the bottom right to start framing your desktop.
When you want to stop the acquisition, just bring the OBS interface to the foreground and click onEnd registration. The processed and ready-to-use video file will be available immediately within the previously selected folder. Really easy and intuitive!
Frequently Asked Questions (FAQ) about OBS Studio
Does OBS Studio affect PC performance while recording?
As a highly optimized program, the impact on the system is generally contained. However, fluidity depends on the hardware in use. To limit any frame rate or lag falls, it is recommended to use dedicated hardware encoders (such as NVENC for Nvidia cards) in video settings and to close heavy applications in the background.
Is there a maximum limit time for screen recording?
No, the software is completely timeless. The duration of your desktop recording is bound exclusively by the free space currently available on your hard drive or on the SSD of your rescue device.
Can I use OBS to extract only audio without recording videos?
Of course. You can start a recording while keeping the “Sources” video section completely empty. Make sure that the microphone or desktop audio levels are active in the “Mixer Audio”. At the end of the recording you will get a video file from the black screen containing only the captured sound track, easily extractable in MP3 format using conversion software or video editing.






