How do I `avconv` every m4a in a dir to mp3s?

Question

So I'm trying to convert lots of m4as to mp3s, and I think the best way to do that is using avconv.

The problem is, I can't seem to find any solid examples on how to use avconv.

Looking at the man page, it has a ridiculous amount of flags/options, and I can't make sense of it.

How can I batch convert with avconv?

slm · Accepted Answer · 2014-04-20T05:28:33.297

30

To do a single file:

$ avconv -i m.m4a m.mp3

To do a batch you could wrap this in a for loop:

$ for i in *.m4a; do
    avconv -i "$i" "${i/.m4a/.mp3}"
done

This will take all the files that are present in the current directory with the extension .m4a and run each of them through avconv. The 2nd argument, ${i/.m4a/.mp3} does a substitution on the contents of the variable $i, swapping out .m4a for .mp3.

NOTE: As a one liner:

$ for i in *.m4a; do avconv -i "$i" "${i/.m4a/.mp3}"; done

edited Apr 20 '14 at 05:28

answered Apr 20 '14 at 03:51

slm

363,520
117
767
871

How could I consolidate that loop onto one line? Or would it be easier to just put it in a shell script? – evamvid Apr 20 '14 at 04:17
@evamvid - see update. – slm Apr 20 '14 at 05:28
I ended up putting it in a shell script last night, but thanks! – evamvid Apr 20 '14 at 20:47
1

@evamvid - OK. If your issues been resolved can you please mark this A as accepted so other passerby's know that your issue's been resolved. – slm Apr 20 '14 at 22:40
yeah, just did. – evamvid Apr 20 '14 at 23:18

How do I `avconv` every m4a in a dir to mp3s?

1 Answers1