[FFmpeg-user] ac3 to mp3 converting bug

Ingo Brückl ib at wupperonline.de
Mon Jul 2 12:07:35 CEST 2012

Carl Eugen Hoyos wrote Mon, 2 Jul 2012 09:53:06 +0000 (UTC):

> Ingo Brückl <ib <at> wupperonline.de> writes:

>> It fails with all ac3 samples, 5.1, 2.1, 2.0 (monsters_inc_2.0_192.ac3,
>> all samples from http://samples.mplayerhq.hu/A-codecs/AC3/).

> The following works fine here (output sounds fine):
> $ ffmpeg -i monsters_inc_2.0_192.ac3 -ab 128k -ac 2 out.mp3

Yes, sorry, my bad. It was late yesterday.

I only listened a few seconds and only checked the top of the output file,
but unfortunately it starts with a few seconds of silence.

The 2.0 samples works here, too, (thx_2_0, for example, works as well). It
seems that ac3 stereo is ok.

What about the other samples on your PC?

BTW, I'm surprised that it seems ok to omit -acodec libmp3lame. I'm sure
ffmpeg complained needing this in the past.


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