FAQ (36)

How to Record Audio When Using a USB Audio Interface

This explains how to record audio that is played through a separately purchased USB audio device instead of through the built-in sound card.

For example, if the USB audio device you purchased is a Scarlett 2i2 USB,

click Sound in Control Panel.


When you click it, the window below will appear, and you will see the newly connected USB audio device in the Playback tab.


Select the USB audio device and click "Set Default".


You can then see that it has been set as the default device, as shown below.


Audio played by the system will now be output through that device, and when recording with oCam, the sound coming through that device will be recorded.


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What are the supported video codecs and container formats?

What are the supported video codecs and container formats?

You can check supported codecs immediately by clicking the Codec button in the main oCam window.



 

The default video codec is Open H.264 + AAC (.MP4).

In addition, MPEG-1, MPEG-2, MPEG-4, XVID, OpenDivX, Microsoft MPEG-4 Part 2, and Microsoft MPEG-4 Part 3 are also supported.

All of these codecs are saved in MP4 or AVI container formats.

oCam records using optimized codecs at installation time, and when these codecs are used, the recorded files can be played on almost all media players without installing additional codecs, unlike many other screen recording programs.

Usually, you may need to install codecs to play a recorded video, but with these codecs, most are supported by default.

This means that you can play oCam-recorded video files directly in Windows Media Player immediately after installing Windows without installing any additional software.

So there is no extra hassle of having to install extra codecs.

Also, MPEG-4, XVID, and OpenDivX are internally encoded with the MPEG-4 codec in oCam, with only the FourCC value changed for XVID and OpenDivX.

Additionally, supported container formats include FLV.

FLV stands for Flash Video and supports live streaming, so you can upload FLV files directly to places like a Zboard forum and preview them immediately on the web.

You can also use an FLV player. FLV is encoded with the MPEG-4 codec in oCam.

For Appleโ€™s QuickTime format, MOV is a QuickTime-only format and uses the MPEG-4 codec.

Also, MPEG-2 Transport Stream has the .TS extension, and MPEG-PS has the .VOB extension; both use MPEG-2 as the codec.

If you choose GIF animation for creating animations, you can make a moving image.

Finally, all audio codecs used during video recording are saved as MP3.

Additionally, external codecs are supported; please refer to a separate post for details on external codecs.

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