demetriusarida6 https://blog.hatena.ne.jp/demetriusarida6/ demetriusarida6’s diary https://demetriusarida6.hatenadiary.com/ I must convert audio information to mp3 using ffmpeg. I agree with wmcclain. When you solely need to change the audio format, I counsel you extract the audio from MKV file to MP3 format, then using video editor(home windows film maker) to add the transformed audio to specified mkv file. Before inclu… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdemetriusarida6.hatenadiary.com%2Fentry%2F2019%2F01%2F27%2F064222" title="Convert Stereo To 5.1 Or 5.1 To Stereo - demetriusarida6’s diary" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> http://mymusictools.com/de/articles/ac3-decoder-start.gif Hatena Blog https://hatena.blog 2019-01-27 06:42:22 rich https://demetriusarida6.hatenadiary.com/entry/2019/01/27/064222 1.0 100%