By MKV to FLV Converter you can set the audio bit rate and sample rate freely.
MKV to FLV Converter features:
1.Support all the Windows platforms: such as Windows 2000 and later systems, both 32bit and 64bit systems, XP, Window 7.
2.Support to convert videos to audio in batches.
3.Support to extract silent movie or audio from vide respectively.
4.Support the functions of setting the resolution, frame and quality for the newly produced videos in advance.
5.Optionally remove video or audio contents from source file(s).
6.The ability to turn MKV to FLV in batches during one conversion.
5.Allow to customize the audio bit rate and sample rate freely to balance the size and audio quality.

Скачать MKV to FLV Converter бесплатно на странице загрузки.