Currently, for a large number of popular films, television series, anime, there are versions of alternative amateur "voice acting", distributed in the form of separate tracks. Some video viewing applications allow you to select an arbitrary file as an external audio track. But if the player does not have such a function, and viewing needs to be carried out, there is nothing left to do but replace the soundtrack in the movie. This can be done using modern digital video processing tools.
Necessary
is a free video editing and compression application VirtualDub 1.9.9
Instructions
Step 1
Upload your movie to VirtualDub Video Editor. Expand the "File" item of the main application menu and click on the "Open video file …" item, or use the keyboard shortcut Ctrl + O. In the "Open video file" dialog that appears, navigate to the target directory, select the file containing the movie, click the "Open" button. You can also simply drag the movie into the application window from Windows Explorer or a folder window opened through My Computer.
Step 2
Specify the file that will serve as the audio source for the new video audio track. Click on the items "Audio" and "Audio from other file …" in the main menu. The "Open audio file" dialog will be displayed. Go to the directory with the file in it, select the file in the list, click the "Open" button.
Step 3
Select the options for importing audio data. Set the preferred values in the "Import Options" dialog. Click the "OK" button. For options related to defining the format of the data stream, it is best to select the Autodetect value.
Step 4
Activate audio stream processing. In the "Audio" section of the menu, check the "Full processing mode" item.
Step 5
Specify your preferred codec and compression format for the audio stream. In the main menu, select the "Audio" and "Compression …" items to invoke the "Select audio compression" dialog. The names of the available audio encoders will be displayed on the left in the list. Check your preferred codec. The list on the right will display a list of audio data compression formats supported by the encoder. Check the format. Click the "OK" button to save your changes.
Step 6
Switch the application to copy the video stream without processing. In the "Video" menu, check the "Direct stream copy" item.
Step 7
Press the F7 key or select the "File" and "Save as AVI …" items from the main menu to start recording video with a new audio track. In the dialog specify the name of the file and the directory to save it. Click the "Save" button. Wait for the operation to complete. The progress of the file formation can be observed in the "VirtuaDub Status" dialog. You can abort the operation by clicking the "Abort" button.