Win7 video file bilingual parallel

The so-called "Bilingual Parallel" is actually when you play audio and video files, you can download Chinese and English (or Mandarin and Cantonese) from the speaker. In the past, due to the problem of the method of suppressing the film and television files, the user could not mediate through the system or the playback software itself.
Even in later Windows XP, this problem still has not been solved by good computer skills. Now, the same problem can be solved well under Windows 7.
On the windows7 Ultimate desktop, right click on the sound icon and select “Play Device” from the pop-up menu. In the pop-up “Sounds” dialog box, select the one you are currently using. Sound device (the device in gray state indicates that it is currently unavailable), and then hit the "Properties" button:
Subsequently, Windows 7 will pop up the corresponding sound device properties dialog box (this article is the headset properties), please switch Go to the "Level" tab and click on the "Balance" button:
Then, the system will pop up the "Balance" dialog box, where the user will use the slider to mediate The "mixing" in the audio and video files has a problem.
After the modification is completed, in the process of closing each dialog box, you need to click the <;OK" or ";Apply" button to save the settings and exit.