Various voice transcription services can be used to process multimedia data (the audio track) and produce a text transcript from it. The degree of success varies, and in most cases requires manual postprocessing by human. Services like VoiceBase are good choice for this type of conversion as it supports multiple formats as inputs, including Windows Media Video (.wmv).
Convert Windows Media Video to Simple text file.
We found one software available in the database for this conversion.
On-line services software - convert wmv to txt on web
A Voice Search & Transcription Platform
Convert from wmv file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.