Harsh noise with 770encode and media converter
 

When trying to convert two divx videos I had with 770encode.pl (default parameters, preset=mplayer), the resulting avi files played a loud, harsh noise instead of the original track. Same results with media converter. I had never this problem when ripping dvd's.

The audio track of those divx videos was in mp3 and I thought the problem could be that it was not rightly decoded and re-encoded, so instead of using wrapper programs I turned directly to mencode, changing the audio encoder from "mp3lame" to "copy". This way, the audio output was correct but the resulting file were almost as large as the original ones.

What kind of command line should I use to get an acceptable audio result while still reducing the file size to around 400 megabytes? Alternatively, what parameters should I pass to 770encode.pl or media converter to avoid that cacophony?

Thanks for your answers :-)

Re: Harsh noise with 770encode and media converter
 

What version of mencoder do you have installed? (just type `mencoder' on its own).

What operating system are you running, and on what kind of PC?

I've never had that problem with 770-encode (obviously, or I'd've fixed it) on my Mac, Windows machines or numerous Linux boxes - but given 770-encode is just a thin wrapper around mencoder, your problem probably lies there (definitely so, given it also happens with Media Converter).

So... we'll just have to get to the bottom of what... ;-)

Re: Harsh noise with 770encode and media converter
 

Mencoder version:
OS: Ubuntu Feisty, 2.6.20-16-generic kernel

Any hint? Thanks... :)

Re: Harsh noise with 770encode and media converter
 

Very similar setup to my own (although I upgraded to Gutsy a couple of weeks ago). Using Ubuntu's standard mencoder, I get:

Could you send me the original files? If they're too big, a command like the following should be sufficient:

That should give you the first 4MB of "theOriginal.avi" in "cutDownVersion.avi" which should be plenty to help diagnose the problem.

Thanks for your help in getting to the bottom of this.

Cheers,

Andrew

Re: Harsh noise with 770encode and media converter
 

I am just sending you the 4M sample; trying to convert it with 770encode.pl produced plenty of noise.

Re: Harsh noise with 770encode and media converter
 

Thanks - received it, will investigate after I get back from taking the family kite flying.

Initial test seems to convert properly (assuming it's supposed to be in Not English ;-)) on my box with the following command and output:

What output do you get for it? That might help track down the differences.

Re: Harsh noise with 770encode and media converter
 

The output seems absolutely the same. I also upgraded to gutsy, so the mencoder version is the same, but still I have noise instead that the original audiotrack. Very strange. Might be something in mp3lib?

Here is my output:

Re: Harsh noise with 770encode and media converter
 

I had the same problem on my new installed Linux-Desktop and solved it by editing the file /etc/mplayer/codecs.conf:
move the entry "audiocodec mad" before the entry "audiocodec mp3".

Re: Harsh noise with 770encode and media converter
 

Thanks, this worked for me too.
Though, I had no /etc/mplayer/codecs.conf so I searched for it into the filesystem of my newly upgraded ubuntu gutsy box.
There was something like that in /usr/share/doc/mplayer/examples/etc/codecs.conf.gz so I gunzipped it, edited it by moving the "audiocodec mad" full section just before the "audiocodec mp3" section, and copied into /etc/mplayer .
So far, so good! Thanks, Nikem...

Re: Harsh noise with 770encode and media converter
 

Excellent. I'll make sure the next release of tablet-encode (as 770-encode will be called in future) references this thread.