Setting the Codec - Choosing a Video Codec
oCam is an intuitive and lightweight free software tool that allows users to record or capture their screen, making it suitable for a wide range of users from beginners to IT professionals.
It is also a screen recording and capture program with a simple interface and powerful features, making it useful for gameplay recording, online lectures, tutorial creation, and simple screenshot capture. Thanks to the intuitive buttons on the main screen, even beginners can use it easily, while advanced users can create an optimized recording environment through detailed settings.

Codec Settings and Video Containers
When you click the "Codec" button on the main screen of oCam, a settings window appears where you can choose the video container and video codec. This settings window is designed to let users freely adjust the recording file format and quality. The video containers supported by oCam include the following formats:

MP4: The most widely used video format, offering excellent compatibility and reasonable file sizes.
MKV: A multimedia container that supports high-quality video and various codecs. (A container that can continue playback even if recording is interrupted partway through.)
M4V: A format optimized for compatibility with Apple devices.
MOV: A QuickTime-related format suitable for users who prefer high-quality video.
WMV: A Microsoft video format mainly used in Windows environments.
FLV: A Flash-based video format often used for web streaming.
AVI: An older format that is still compatible with a wide range of software.
TS: A streaming format suitable for high-definition broadcast recording.
VOB: A format mainly used for DVD video.
By supporting such a wide range of containers, users can choose the file format that best fits their platform or purpose.
Supported Video Codecs
oCam provides a variety of video codecs to help optimize recording quality and performance. The supported video codecs are as follows:
NVIDIA NVENC H.264: A high-efficiency codec that uses hardware acceleration and delivers excellent performance on systems equipped with NVIDIA graphics cards.
Open H.264: An open-source H.264 codec that provides high compression efficiency and good quality.
MPEG-4: A widely used codec with excellent compatibility across many devices.
Microsoft MPEG-4 Part 2 and Part 3: Codecs optimized for Microsoft environments.
Windows Media Video 8 (WMV8): Provides efficient compression on Windows-based systems.
MPEG-2: A codec suitable for DVD-quality video.
MPEG-1: An older format that is still useful on lower-spec systems.
FLV: A codec specialized for Flash video.
In particular, the NVIDIA NVENC H.264 codec uses the hardware encoder built into NVIDIA graphics cards to minimize CPU load, allowing smooth recording with almost no lag even during demanding tasks such as gameplay recording. However, this codec is only supported on certain NVIDIA graphics cards or higher, so recording may fail if your graphics card does not support it. For that reason, it is important to check your system specifications before selecting this codec.
Audio Codecs and Additional Features
oCam supports not only video recording but also audio recording, allowing you to capture sound together with screen recordings. The supported audio codecs are as follows:
AAC: Offers high sound quality and efficient compression, and is compatible with most modern video containers.
MP3: The most widely used audio format, offering a good balance between file size and sound quality.
MP2: An audio codec often used for broadcasting and DVDs.
WMA: A Microsoft audio format optimized for Windows environments.
FLAC: A lossless audio codec that provides high-quality sound close to the original source.
With these audio codec options, users can adjust the sound quality of recorded videos as needed. For example, you can use AAC for clear lecture audio or MP3 for gameplay recordings to maintain a good balance between quality and file size.
GIF Support
oCam also supports GIF format, which is useful for users who want to create short and lightweight animated files. When you select GIF mode, an animated GIF file is created instead of a video file, making it suitable for sharing on social media or creating simple tutorials. Since GIF files can be large and are not ideal for high-resolution video, it is best to choose this format according to your needs.
Things to Keep in Mind
There are a few things to keep in mind when using oCam. In particular, if you use the NVIDIA NVENC H.264 codec, you should always check your hardware specifications first. If you select this codec on an unsupported graphics card, recording may fail or errors may occur. It is also important to make sure you have enough storage space and system resources when recording in high resolution or for long periods.
Conclusion
oCam is software designed to make screen recording and capture easy for anyone through a simple interface and powerful features. It supports a wide range of video containers and codecs, and hardware-accelerated recording with the NVIDIA NVENC H.264 codec in particular delivers excellent performance even for demanding tasks. With support for audio codecs and GIF creation as well, oCam is a versatile tool that can be useful in many different environments, from individual users to professionals. If you carefully choose the codec and settings that match your system specifications and intended use before starting a recording, you will be able to get the best results.
Today's News/Tips
Useful Tips for Microphone Recording in Windows 7 or Later
When recording microphone and system audio with oCam, knowing how to adjust the sound balance and audio quality is an important factor that can greatly improve recording quality. Below is a detailed guide to the settings and tips related to microphone and system audio recording.
1. If you want to record only the microphone
If you want to record only the microphone audio and exclude system audio, click the 'Sound' button in the oCam main window. In the sound settings menu, uncheck the 'Record System Audio' option. With this setting, oCam will record only the microphone input without system audio, allowing you to focus on the microphone sound.
2. If you want to record both the microphone and system audio
To record both microphone and system audio at the same time, click the 'Sound' button in the oCam main window, then select both the 'Record System Audio' and 'Microphone' options. With this setting, you can record system audio such as game sound or background music together with voice input from the microphone, such as commentary or conversation. This is useful when you want to create a video in which both sounds blend naturally.
3. If the microphone volume is too low
If the microphone volume is too low and hard to hear, you can adjust the microphone volume through the Windows sound settings. Follow the steps below:
- Open 'Control Panel' from the Start menu and click 'Sound'.
- In the Sound settings window, go to the 'Recording' tab.
- Find the microphone you are using in the list of recording devices and double-click it to open the 'Microphone Properties' window.
- In the 'Levels' tab, adjust the 'Microphone Volume' slider to increase the base volume, and if necessary, enable the 'Microphone Boost' option to make the sound louder. With this setting, the microphone audio will be recorded more clearly and at a higher volume.
4. If the system audio is too loud and drowns out the microphone
If the recorded system audio is too loud and makes the microphone hard to hear, you should reduce the system audio volume. You can use the following two methods for this:
- Adjust the volume inside the playback program: If the program producing the system audio, such as a game or media player, has its own volume control option, lower the volume in that program. This reduces the system audio level during recording and helps balance it with the microphone audio.
- Use the Windows Volume Mixer: If the program itself does not allow volume adjustment, right-click the speaker icon in the tray at the bottom right of the taskbar. From the menu that appears, select 'Open Volume Mixer'. This will open the mixer window, where you can adjust the volume of each currently running program individually. Lower the volume slider for that program to reduce the system audio.
*Note*: Lowering the overall Windows speaker volume does not affect the volume of the recorded sound, so you must adjust the volume of the individual program.
5. If increasing the microphone volume only increases noise and the audio quality is poor
If you increased the microphone volume as described in section 3 but the noise became worse or the audio quality is still unsatisfactory, then instead of forcing the microphone volume too high, you should also reduce the system audio appropriately. As explained in section 4, lower the system audio volume to balance it with the microphone audio so that the microphone voice can be heard more clearly. During this process, carefully adjust the balance between the microphone and system audio to find the best sound quality.
6. If you want to further improve microphone quality or completely remove noise
If you want to maximize microphone quality or reduce noise, software settings alone may have limitations. In that case, the most effective solution is to purchase a professional audio interface and a high-quality microphone. Many standard microphones produce a lot of noise or have low audio quality, making it difficult to fully compensate through software. Therefore, using a high-quality audio interface and a matching microphone can give you clear audio with minimal noise. For example, combining a condenser microphone with a USB audio interface can deliver professional-level recording quality.
Use the methods above to adjust the microphone and system audio in oCam the way you want and create the best recording environment. By fine-tuning each setting carefully, you can record better sound quality and more balanced audio.