Sources menu

The Source menu is used to configure the incoming audio, video and slide sources. Input slide sources are treated as regular video sources. You can capture slide sources as video and vice versa in the Presentations 2Go Encoder.

Video Sources

On the Video Sources tab, you can add four different devices such as cameras, images, videos and screen sources.

Click to add

Use this button to add a new video/slide source.

Name

The name will be used to display in the source buttons. Long names will be truncated.

Video Source

There are four types of video sources: Video device, Screen, Picture file and IP Camera. The configuration options depend on the selected type and will be explained below.

Flip Horizontally

Flip the video source horizontally

Flip Vertically

Flip the video source vertically

Update

To commit your changes, you need to click the Update button.

Delete

Remove the configured device from the list with sources.

Cancel

Ignore changes and continue

 

Video Device
If you selected the Video Device source type, you will see the following configuration options.

Video Device

The dropdown box will show you the available video sources. Select your source to continue. Use the properties button to configure the device driver settings.

Video Input

If your device has multiple modes, you can select the appropriate mode such as Composite, S-Video, Tuner, HDMI, etc.

Video Size

Video sources can often deliver various output resolutions. If the default device resolution is too high (performance) or too low (foggy video), you might want to choose a fixed resolution offered by the device.

Video subtype

If supported by the device, you can select a different subtype such as I420, RGB24, etc.

Analog Video Standard

If supported by the device, you can select the video standard such as PAL, NTSC, SECAM.

Frame Rate

When set to 0 the device default will be used.  By default the recording video output profile is set to 25 fps. Setting higher values can cause higher CPU usage.  This setting is overruled by the slide capture frame rate in the Capture menu when the device is used for slide capturing.

Slide Delay

Often used in combination with an IP camera. IP cameras tend to have more latency which causes the slides to be positioned too early in the timeline.

Audio Delay

Video processing is performed separately from audio processing. This can cause lip-sync issues. Often the audio is ahead of the video.

Stream/Properties

Devices often offer advanced configuration properties such as custom resolutions, flip camera, de-interlace etc.

 

 

 

 

Screen
If the source type Screen is selected, you will see the following configuration option.

Screen number

If you have multiple monitors configured, you can select the screen you want to capture.

Frame Rate

When set to 0 the device default will be used.  By default the recording video output profile is set to 25 fps. Setting higher values can cause higher CPU usage.  This setting is overruled by the slide capture frame rate in the Capture menu when the device is used for slide capturing.

Slide Delay

Often used in combination with an IP camera. IP cameras tend to have more latency which causes the slides to be positioned too early in the timeline.

Audio Delay

Video processing is performed separately from audio processing. This can cause lip-sync issues. Often the audio is ahead of the video. 

 

Picture File
If the source type Picture File is selected, you will see the following configuration option.

File path

Click the browse button and select an image of choice. Images used as video source will be stretched into 4:3 or 16:9 resolution.

 

IP Camera

Presentations 2Go Pro supports natively the IP cameras in http Motion JPEG (MJPG) or JPG mode listed in Annex 1: IP Camera URL formats, with their specific URL to use.

 

If the source type IP Camera is selected, you will see the following configuration option.

 

 

URL

Enter the URL of the IP camera (MJPEG mode)

Preview

Click on Preview to start the IP stream and test you settings.

User Name / Password

In some cases the IP stream is protected with a username and password. Leave these fields empty in case there is no authentication needed.

Connection Timeout

In case the default timeout to setup the connection with the IP Camera is too short, you can overrule this parameter. Default (0) is set to 10000ms.

Receive Timeout

In case you have setup a connection but no data is received, the connection will be broken after the receive timeout has passed.  The default (0) is set at 5000ms.

Frame Rate

When set to 0 the device default will be used.  By default the recording video output profile is set to 25 fps. Setting higher values can cause higher CPU usage.  This setting is overruled by the slide capture frame rate in the Capture menu when the device is used for slide capturing.

Slide Delay

Often used in combination with an IP camera. IP cameras tend to have more latency which causes the slides to be positioned too early in the timeline.

Audio Delay

Video processing is performed separately from audio processing. This can cause lip-sync issues. Often the audio is ahead of the video. 

 

Video file
If the source type Video File is selected, you will see the following configuration option.

Video File

Click the browse button and select an video of choice.

Repeat Playback

Check this feature to repeat the video continuously.

Preview

Show the video in the right window

 

Audio Sources

On the Audio Sources tab, you can add and configure your input audio devices.

  

Click to add

Use this button to add a new audio source.

Name

The name will be used to display in the source buttons. Long names will be truncated.

Audio Source

The dropdown box will show you the available audio sources. Select your source to continue. Use the properties button to configure the device driver settings.

Audio Input

If supported by the device, you can select different types such as Master Volume, SDI, Analogue.

Audio Input Level

Use the slider to set the input source level.

Audio Input Balance

Use the slider to adjust the audio balance between the left and right channel.

Mono

Check this box to force a mono audio signal

Update

To commit your changes, you need to click the Update button.

 

Capture

The capture menu is used to configure the slide capture settings such as motion detection, quality and output resolution.

Slide settings

The slide settings tab is the only tab in the Capture menu.

Slide Output Size

The resolution of the selected source is used by default. However, if you switch slide sources during a recording, you might want to force a fixed output resolution. If you mix 4:3 with 16:9 sources, the resulting slide will be scaled to the selected aspect ratio.

Default JPEG Quality

The quality of the JPEG will determine the file size of each slide. The resolution is set to 95% (high quality) by default. Text will become less sharp if you decrease the quality.

When Video Source = Slide Source

This selection box gives you the opportunity to influence the behaviour of slide capturing when both the video source and the slide source are the same. If you select

¾     Use Blank Slide; no slides are captured.

¾     Capture Last Video Frame; the first and the last frame are captured during your slide source video capturing.

¾     Capture Slides; slides continue to be captured, resulting in a large amount of slides.

¾     Use This Image File; you are given the opportunity to select a static image while capturing your slide source as video.

Use Color

The motion detection is done using a greyscale version of the selected slide source by default. However, it is also possible to select one or more color channels. Slide detection with multiple color channels will increase your processor load.

Use Grey Scale

The motion detection is done using a greyscale version of the selected slide source by default.

No Motion delay

No Motion delay is used to prevent excessive slide capturing during PowerPoint slide transitions or effects. No slides are captured if the slide is not stable for more than the selected number of frames.

Frame Rate

Motion detection is a processor intensive process (CPU). You can set the amount of frames to be detected per second to avoid excessive processor usage.

Sensitivity

Sensitivity determines the amount of color changes needed to capture a new slide. This value is set to 5 by default.

Grid Size

The grid size determines the block size. A large grid size divides the slide source into smaller blocks resulting in higher sensitivity for motion changes (e.g. mouse movement).

Reduce Video noise

This function reduces noise in the slide source. However, it requires high processing power (CPU).

Min Motion Trigger

Minimal motion needed to capture a slide. Increase this to e.g. 1 when you have continuous noise in your incoming slide source. A setting of 1 will also eliminate motion capture caused by mouse movements.

Update

To commit your changes, you need to click the Update button.

 

 

 

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