Why was my video's bitrate reduced?

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kodaCollider
Posts: 2
Joined: Wed Jul 27, 2016 1:13 am

Why was my video's bitrate reduced?

Post by kodaCollider »

This is probably a dumb question, but I just wanted to confirm my assumptions on this situation. I had an MKV file that I wanted to remove an audio stream and a subtitle stream from. I assumed that the video file itself would remain untouched during this process.

I loaded the file in MakeMKV, simply de-selected the audio/subtitle streams I wanted removed, set the output folder and hit the button.

When I inspect the source file, however, it lists the original total bitrate for video at: 19118kbps

When I inspect the new file, it lists the new total bitrate for video at: 18898kbps

This is simply through Windows' native file inspection. It's labeled "video", but is this difference due to the absent subtitle track? If so, it seems strange that it would lump that into "video" bitrate. If not, what happened?

I basically just wanted to verify that nothing on the video itself was touched, and the "video bitrate" being off gave me a bit of pause in that regard.

Thanks in advance.
Aast656
Posts: 20
Joined: Sat Jul 23, 2016 11:24 pm

Re: Why was my video's bitrate reduced?

Post by Aast656 »

If you want to check the bitrate of the vídeo track, use the Mediainfo program, instead of the windows properties, which gives you information about the file, but not about que different tracks included in it.
kodaCollider
Posts: 2
Joined: Wed Jul 27, 2016 1:13 am

Re: Why was my video's bitrate reduced?

Post by kodaCollider »

Thanks for the advice, I went ahead and downloaded that. Very helpful. :)
Woodstock
Posts: 10312
Joined: Sun Jul 24, 2011 11:21 pm

Re: Why was my video's bitrate reduced?

Post by Woodstock »

Bit rate includes all of the streams within the file. While the video stream isn't changed, removing other streams will mean fewer bits per second.
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