The free converter, tested we can import the popular lossless formats like WAV and FLAC and convert popular lossy formats like MP3 and AAC, but the best Pay converter also includes lesser-known formats including proprietary audio formats, import companies like Sony, Microsoft and Yamaha. . Here is the problem I found converter, (see this question) is recognized all my sources audio channels as different channels (as if they had DVD languages). A standard 16-bit stereo is automatically converted to 32-bit floating point format (if the file is already 32-bit, it will go through without modification). I also have an Audigy 4 sound card, but I can not find any information on how to convert 2-channel to 5.1. I think the best way is to use a sound card with Dolby Pro Logic (II or IIx) or DTS Speaker RCA outputs. Dolby Digital for Broadcasters If you are using Dolby Digital, make sure that the audio portion of the signal is compatible with playback systems and broadcasting standards throughout North America. Click Convert to complete the conversion to get an MP4 5.1 video file. 598 Views Related Questions More Answers below How do I convert my.avi and.mp4 audio channel from 2 to 5.1? Technology enhancements in audio conversion software now give us the ability to extract high quality audio from CDs or streaming services, duplicate these files and convert them to lossy formats like MP3 to make the files smaller and playable on mobile devices. With the SoftEncode icons you can redistribute the channels, and I think it good if you force it to check the channels at that time. Web Server Software For Windows 7 on this page. An added bonus: Improving stereo playback I can add that the fLfR plugin can automatically improve stereo playback if you use it yourself and set the frontal atmosphere close to the maximum. Also, please do your best judgment When you post on the forum, no personal information, such as e-mail address, phone number and address, is recommended.