How to Record Microphone and System Audio

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Below is a detailed guide on how to record audio and configure the settings in oCam.


Recording System Audio by Default

When you start screen recording with oCam, system audio is recorded automatically by default. This includes all sounds played on your computer, such as video audio, game sound effects, and system notification sounds. This setting is applied immediately without any extra steps, making it very convenient for users who want to record only system audio. For example, when recording gameplay footage or creating software tutorial videos, you can capture only the system audio cleanly.


Recording Microphone Audio as Well

If you want to record microphone audio together with system audio, you only need to adjust the settings slightly in oCam. First, click the "Sound" button on the main screen of oCam. A pop-up window for sound settings will then appear. In this window, a list of available microphone devices is shown, and you can select the microphone you want to use. For example, if you are using an external microphone or a headset microphone, simply select and enable that device. Through this process, both system audio and microphone audio are recorded at the same time, which is very useful when creating lecture videos or recordings that require live narration.


Applying the Audio Recording Settings

Once you select the microphone and complete the settings, oCam immediately applies them. After that, when you start recording, both system audio and microphone audio will be recorded together. This feature is especially effective for situations where both your voice and system sound need to be captured at the same time, such as YouTube content creation, online classes, or game streaming. To make sure the settings have been applied correctly, it is a good idea to run a short test recording and check whether the audio is being recorded properly.


Disabling Audio Recording

Sometimes you may want to capture only the screen video without recording any sound at all. In that case, uncheck the "Record System Audio" option in the sound settings window of oCam, and select "Do Not Record Microphone" in the microphone settings as well. With this configuration, oCam records only the screen video without any sound, which is suitable for tasks where a silent video is needed, such as when you plan to add background music separately later.
 

Another helpful tip

How to Resize the Recording Area in oCam



The main screen of oCam includes various buttons designed for intuitive use of its features, and among them, the "Resize" button is one of the key functions for customizing the recording area. When you click this button, a clean and user-friendly pop-up menu appears. This menu provides a variety of options for flexibly adjusting the size and resolution of the recording area, making it easy for everyone from beginners to IT professionals to configure settings that best fit their working environment.





When the pop-up menu opens, the sizes shown represent the resolution of the recording area, and clicking a menu item immediately adjusts the recording area to the selected resolution. For example, if you choose a standard resolution such as 1920x1080 (Full HD) or 1280x720 (HD) under the YouTube category, the oCam recording frame will be set to that size and recording will proceed at the exact resolution. oCam supports resolutions up to 4K (3840x2160) by default, making high-resolution content creation possible. In particular, when using the MPEG-4 codec, it supports resolutions up to 8K (7680x4320). This is especially useful for professionals who need high-quality video production, such as recording high-resolution gameplay footage or performing professional video editing work.


The pop-up menu also includes a "Full Screen" menu item. Clicking this option automatically sets the recording area to cover the entire monitor screen. If you press the Record button in this state, the whole screen will be recorded, which is especially useful when capturing the entire desktop, presentations, or full-screen gameplay. Full Screen mode is the best choice when you want to record all on-screen content easily without setting a separate area.



 

Another powerful feature is the "Find Recording Target Window" menu item. When you click this option, the window under the mouse pointer is highlighted with a red rectangular box. If you move the mouse over the window you want and click it, that window area is automatically set as the recording area. This feature is very useful when you want to record or capture only a specific window, such as an application or browser window. For example, when creating software tutorials or recording the workflow of a specific program, you can capture only the necessary window cleanly without unnecessary background, greatly improving work efficiency.



Finally, the "Custom Size" menu item is an option that allows users to control the size of the recording area more precisely. Clicking this menu opens a separate input window, where users can directly enter the horizontal and vertical pixel values of the desired resolution to set the recording area. This feature is especially useful when a non-standard resolution or a custom size is needed for a specific project. For example, it can be used when you need to match the resolution requirements of a video for upload to a social media platform or record at a size optimized for a specific device.


With these various options, oCam's resize feature makes it possible to set the recording area flexibly and precisely according to the user's needs. The ability to set the desired resolution and area with just a few clicks clearly shows oCam's intuitive design and efficiency. In addition, you can further optimize your workflow by adjusting the save path, file naming rules, or detailed codec settings in the Settings menu. If you want high-quality video or need to capture a specific window, we recommend actively using oCam's resize feature to get the results you want with ease.