Recording

Video

Screenbits encodes the output video using H.264 codec and provides multiple options to configure the output, including resolution, frame-rate and quality.

To change resolution:

1. Select Settings from Menu to open Settings.
2. Click Video from the side bar to open Vudeo settings.
3. From Output section, select output resolution from Resolution selector.

To change frame-rate:

1. Select Settings from Menu to open Settings.
2. Click Video from the side bar to open Video settings.
3. From Output section, select desired frame-rate from Framerate selector.

Note: Select Custom from the selector to choose a custom frame-rate up to 120.

To change quality:

1. Select Settings from Menu to open Settings.
2. Click Video from the side bar to open Video settings.
3. From Output section, move Quality slider to increase or decrease quality.

To force recording in variable frame-rate:

1. Select Settings from Menu to open Settings.
2. Click Video from the side bar to open Video settings.
3. From Output section, check Prefer variable frame-rate check box.

Note: Not preferring variable frame-rate does not mean that the video will be recorded in constant frame-rate. Depending on your system performance, recorder may fall back to variable frame-rate to be able to work properly.

Audio

Screenbits encodes recorded audio using AAC codec, allows you to configure bit-rate, sample-rate and number of channels for it.

To change format of the output audio:

1. Select Settings from Record menu to open Settings dialog.
2. Click Audio from the side bar to open Audio settings.
3. From Output format section, select the desired bit-rate, sample-rate and number of channels for the output audio.

Note: If multiple audio sources are selected, Screenbits mixes both audio streams into a single audio track.

Supported formats

Screenbits supports recording the following audio formats for the input:

• 8kHz, 11.025kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz sample rates
• 1 (mono), 2 (stereo), 4, 6 and 8 channels
• 16, 24 and 32 bits per sample

If you attempt to record an audio device with an unsupported format, an error message pops up asking you to select a different format for the device.

To change the default format of an audio device:

1. Select Settings from Menu to open Settings.
2. From Input section under the Audio tab, click Configure to open Sound control panel.
3. Right click on name of the device in list under the Playback or Recording tab and click Properties.
4. From Default Format section under the Advanced Tab select one of the supported formats above.
5. Click OK to apply changes to the device properties

Figure 2: Audio Format - Sound settings