How to create WMV file with multi-language audio tracks

[rakf1]

Guide to encode WMV file with multi-language audio tracks

Tools required:
Windows Media Encoder

This document describes the basic instruction for creating a WMV file with multi-language audio tracks. The tool used is Windows Media Encoder which is free software available from Microsoft website.

Index:
1. Encode 1 Video (WMV) and 3 Audio (WMA) files
2. Edit Windows Media files to same length/duration
3. Mux 3 WMA tracks with the WMV video
4. Verify that final encoded WMV file has 3 audio tracks


1. Encode 1 Video (WMV) and 3 Audio (WMA) files:
Use Windows Media Encoder to create a WMV video only file and three WMA audio files with different language settings for each as described below. You can also create 1 WMV with audio file and 2 WMA audio only file.
• Open Windows Media Encoder from Start -> Programs -> Windows Media
• Select “Custom Session” as shown in the screen-shot below:


• Under the “Session Properties” -> “Source” tab, select the ‘source form’ as ‘File’ and browse the source video or audio file as shown in the screen-shot below:


• Under the “Session Properties” -> “Output” tab, select the ‘encode to file’ option and select a output file name as shown in the screen-shot below:


• Under the “Session Properties” -> “Compression” tab, select the ‘edit’ button and set the encoding option like bitrate and language option, as shown in the screen-shot below:


• Make sure that all WMA files are encoded with same bitrate settings.


2. Edit Windows Media files to same length/duration:
This is a optional step required only if the WMV and WMA files are of different durations. If all the files have same duration, then skip this section.
• Open Windows Media File Editor from Start -> Programs -> Windows Media -> Utilities
• Open the WMV/WMA files and use the Mark In/Mark Out options to edit the files to the same duration and save.



3. Mux 3 WMA tracks with the WMV video:
• Open Windows Media Stream Editor from Start -> Programs -> Windows Media -> Utilities


• Select “Add Source…” and browse to the folder containing WMV and WMA files.


• Select all the WMV and WMA files


• Expand all the source files and check the box for Video and Audio as shown in the screen-shot below:


• Select the “Add ->” button, the Output audience should appear as shown below:


• Select “Create File…” and type a file name for output file and click the start button.


4. Verify that final encoded WMV file has 3 audio tracks:
• Open the created WMV file in Windows Media Player
• Verify that a audio track is playing along with video
• From the Play menu, select “Audio and Language tracks” and verify that the 3 audio tracks are available as shown in the screen-shot below:

• Verify that selecting a different audio language track will play that particular audio track.

[kwangkia]

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