In the Format drop down list on the left select MP4ġ2. In the Audio drop down list on the left select AAC (Faac)ġ0. Set the target bitrate to at least match the bitrate of the video you are converting (if you want to minimise loss of quality set the bitrate 500 to 1000 kb/s above the video you are converting) and click OK.ĩ. In the drop down list select Constant Bitrate. Below the Video drop down list click Configure.

On the left hand side in the Video dropdown list select MPEG-4 ASP (mpeg4)Ĩ. The video should now open in the Avidemux preview window.ħ. If you get Index is not up to date warning click the Yes option.Ħ. If you get a H.264 detected warning click on the No option.ĥ. Click File>Open, and navigate to where the file is stored on your machine.Ĥ. Download and install Avidemux - you'll find where to DL it with Google.ģ. mp4 as the extension.Just noticed the OP asked for directions on how to use Avidemux. (Sometimes using this option the audio may be out of sync or distorted, in that case select aac(faac) instead.)ĥ) Select save, choose location and type a filename with. Check if the audio codec is aac.Ĥ) If audio codec is NOT aac, select aac(faac). We have already discussed How to install avidemux in ubuntu.ġ) Open the mkv file in avidemux and Select safe mode if prompted.ģ) Choose File-> Properties. The program was written from scratch by Mean, but code from other people and projects has been used as well. Tasks can be automated using projects, job queue and powerful scripting capabilities.Īvidemux is available for Linux, BSD, Mac OS X and Microsoft Windows under the GNU GPL license. It supports many file types, including AVI, DVD compatible MPEG files, MP4 and ASF, using a variety of codecs.

Avidemux is a free video editor designed for simple cutting, filtering and encoding tasks.

Convert mkv to mp4 avidemux