[MEncoder-users] encoding 3gp, mp4, wmv

[dtra]

Michel Bardiaux wrote:

> RC wrote:
>
>> On Wed, 03 Aug 2005 10:51:54 +0200
>> Michel Bardiaux <mbardiaux at mediaxim.be> wrote:
>>
>>
>>> Maybe you actually used -ab 16 or -ab 32, or you used a version of 
>>> mp3lame that supports 12kbits while mine (debian woody, liblame0 
>>> 3.96-woody1) does not.
>>
>>
>>
>> No doubt the difference is the audio sample-rate in your source files.
>>
>> For lame to produce files with low bitrates, the sample-rate has to be
>> set to very low values, like 8000 or 16000.  Using lame directly, it
>> will automatically resample to the needed rates, but used through
>> mencoder/ffmpeg you often have to set these manually.
>>
> You seem to have missed that -ab 8 works fine. Its -ab 12 that fails. 
> And anyway my command did set the sample rate explicitly:
>
> ffmpeg -i utc_1434.mpg -b 80 -vcodec wmv1 -acodec mp3 -ar 8000 -ab 12 
> -y out.wmv
>
WOOOOHOOOO
finally got ffmpeg rpm with amr_nb worked out, and funny thing is, the 
12 kbits didn't work, put it up to 16 and it was fine