When adding an audio track to a video track, you can use specialized programs, or you can use simple programs that are freely available on the Internet. In general, these programs are inferior in functionality, but in performing basic tasks - these programs are irreplaceable. Virtual Dub Mod software allows you to not only edit video files, but also import media files to the video track.
It is necessary
Virtual Dub Mod software
Instructions
Step 1
After installing and running the program, open the file that needs to be added to the audio recording. Click the File menu, then click Open. In the window that opens, search for the file, then click the "Open" button.
Step 2
Click the Steams menu and select Steam list from the menu that appears. In the Available streams window that opens, click the Add button. Multiple audio tracks can be added. Use the Move Up and Move Down buttons to move the selected tracks in the order in which you want to hear them in the video file. In one file, you can insert several tracks, voiced in different languages.
Step 3
After adding the necessary sound files, you find that the sound lags or runs forward, then the sound track needs to be tweaked. Right-click on this track, select the "Interleaving" menu item. The amount of track shifting can be selected when viewing the finished version of the file in Crystal Player.
Step 4
In the window that opens, in the "Delay audio track by" field, enter a suitable value. 1 second of video equals 1000 milliseconds. After setting this value, press the "OK" button twice. In the main window of the program, click the Video menu, select Direct stream copy.
Step 5
It remains to save the file. Click the File menu, then Save As. Select the file type, click the "Save" button.