Linux forum

General discussion

Audio Upmixing

by Yew / May 12, 2004 10:41 AM PDT

I have a friend who's going to be strangled by me pretty soon if I can't find an answer to this.

He wants a fairly definitive answer as to whether Mplayer and/or Xine either can be made to out of the box or via some sort of 3rd party program, upmix audio. So say I have a video file with a stereo MP3 track in it. Is there some way to upmix that to say 5.1 or 6.1 audio assuming the hardware is all in place to handle it? It's understood that the upmixed audio won't be as good as true 5.1/6.1 audio, but simple mirroring of channels isn't really good enough for him.

Discussion is locked
You are posting a reply to: Audio Upmixing
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Audio Upmixing
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
Re:Audio Upmixing. It's simple.
by R. Proffitt Forum moderator / May 12, 2004 11:21 AM PDT
In reply to: Audio Upmixing

Find out where this new audio content is going to come from.


Collapse -
Re:Re:Audio Upmixing. It's simple.
by Anthony J Moulen / May 12, 2004 11:16 PM PDT

Actually most audio tracks contain enough information for sophisticated audio tools to upmix to 5.1 type audio. My Bose sound system will upmix stereo VCR output to approximate 5.1 audio. It isn't perfect but it is better than just stereo (occasional audio artifacts happen this way).

If the Stereo audio was matrix encoded it would contain surround information that can be decoded, if it was matrix encoded, I am not sure what can be done to make this work, although you can do variable output to different channels. Here is a page with some more information that may be helpful:

Popular Forums

Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Your favorite shows are back!

Don’t miss your dramas, sitcoms and reality shows. Find out when and where they’re airing!