how to get rid of one of stereo channels?

[spiritgumm]

I have a dvdr which has static on the right speaker channel. It's not really stereo, as the audio is identical from each speaker except for the static. How can I recode so it's MONO using the left speaker only (or STEREO and using the left speker for the right)?

[Baldrick]

extract the audio.
open the audio in goldwave, delete the right track. save mono. convert to ac3 with ffmpeggui. add it back.

see this guide how extract the audio and add it back, https://www.videohelp.com/guides.php?guideid=667&howtoselect=6;57#667


or extract the video and audio with rejig,dvddecrypter, convert the audio with goldwave. and then reauthor the old video and the new audio to a new dvd with any authoring tool.

[spiritgumm]

Thanks for the procedure. Any way I can use NERO instead of buying Goldwave?

[dphirschler]

Try this AviSynth script.

a=WavSource("c:\work\myaudio.wav")# right channel is bad
chL=GetChannel(a,1)
return MergeChannels(chL, chL)

Darryl

[redwudz]

You could use Audacity instead of Goldwave. It's freeware.

[kschang]

Nero's Soundtrax should do it as well, but it's not included in all versions.

[spiritgumm]

Thank you, all.
I tried to demux the audio using Decryptor (as the guides say), but it comes out as an VOB file, not AC3. What am I doing wrong?