| Enosoft DV Processor Help |
When capturing incoming DV to an AVI or Raw DV file or when sending DV to an external device, it is useful to be able to monitor both the video and audio. By default, monitoring is turned off in order to conserve CPU use.
By default, when the output from the processor is either a file or an external DV device, the processed video is displayed in a small (quarter resolution) window within the processor's main application window.
You can choose to display the processed video in a full resolution window that is separate from the main application window. In order to enable this feature, open the Processor Configuration Dialog by clicking the Processor section's Configure... button:
Check the box named Monitor output video. The window used to display the video will behave according to the other settings in the Video Renderer Window Options group. For more information about these settings, see Video Renderer Window Features.
Note! The creation of the monitor window is determined when the Output device is selected. i.e., if an Output device has already been selected and the monitor window option is enabled afterwards, it will not be shown. Simply re-select the same device for Output - at this point, the monitor window will be created (though it won't be visible until the processor is started).
IMPORTANT! When monitoring video that is being sent to an external DV device, do not move the window from one display to another (if available) as this will cause a momentary glitch in the data being sent to the device. This is also true for the main application window. i.e., do not move the application's window from one display to another while sending data to/receving data from an external DV device.
By default, audio monitoring is turned off and audio will only be heard when using the Video Renderer for Output.
Audio monitoring of both the Input and Output stages of the processor can be enable via the Processor Configuration Dialog (as above).
To enable monitoring of the audio of the Input, check the Monitor input audio box. By default, the software will automatically choose which audio device to use for monitoring. Even with just a single audio hardware device (i.e., one soundcard), there are typically two or more ways in which the operating system can use it. For example, most soundcards support Microsoft's DirectSound and the older 'WaveOut' scheme. Others also support high-performance driver models such as ASIO. Typically, the software will select the 'Default DirectSound Device'. In some cases, this is not necessarily the best option. In particular, Windows Vista uses a new 'audio layer' that changes the way in which audio hardware is made available to software. Most significantly, the DirectSound model has been deprecated and is emulated by Windows Vista. However, by default, the operating system will still choose the DirectSound option.
To override the selection of audio device, choose the Use this audio device radio button and select a device from the drop-down list:
If you only have one soundcard and are using Microsoft Windows XP (32-bit or 64-bit), we recommend the Automatically select audio device option.
If you only have one soundcard and are using Microsoft Windows Vista, we recommended selecting a non-DirectSound option from the list.
To enable monitoring of the audio of the Output, check the Monitor output audio box. By default, the software will automatically choose which audio device to use for monitoring.
To override the selection of audio device, choose the Use this audio device radio button and select a device from the drop-down list:
If both input and output audio monitoring are enabled and the same audio device is chosen for both, it is desirable to mute the input audio when the output audio is active.
There are two ways this can be achieved:
For DirectSound devices, the software can instruct the DirectSound driver to simply mute the audio. This works because multiple DirectSound audio streams for the same device are mixed automatically by the operating system.
For non-DirectSound devices, the operating system typically cannot mix multiple streams for the same device and the consequences can be unpredictable. e.g., under Windows Vista, programs can become dead-locked. To get around this, the Enosoft DV Processor will disconnect the input audio 'filter' from the rest of the 'filter graph'. The drawback to this approach is that the Input stage must be momentarily stopped and then restarted.
When different pieces of audio hardware are used for Input and Output monitoring, muting of the Input is not necessary.
We strongly recommend leaving the Automatically mute input monitor option enabled.
Note! The creation of an output audio monitor is determined when the Output device is selected. i.e., if an Output device has already been selected and the audio monitor option is enabled afterwards, the audio will not be heard. Simply re-select the same device for Output - at this point, the audio monitor will be created. The same applies for the input audio monitor and the Input selection.
By default, the small video monitor windows in the application's main dialog window make use of the Video Mixing Renderer (VMR) that is provided by the operating system. Whenever the computer's video mode changes, VMR windows automatically restart the DirectShow filter graph. The practical consequences of this are that if you are capturing to disk and change the video mode, the capture will restart and overwrite the existing file. Such changes in video mode occur when you lock the computer, press Ctrl-Alt-Delete or, on Windows Vista, perform a task that causes a UAC prompt to be displayed.
To prevent this unwanted restart, the Enosoft DV Processor can use a more traditional, non-VMR renderer for the small monitor windows. To do this, simply enable the Don't use VMR for small monitor windows option:
Last Updated on Sunday, 8th March, 2009. Application Version 1.5.4.