Install the lame non-free package.
Configure Lame Settings ⇒ Configure K3b ⇒ Plugins ⇒ Audio Encoder ⇒ K3b External Audio Econder:
| Name | Mp3 (Lame) |
|---|---|
| Extension | mp3 |
| Command | lame –preset standard –tt %t –ta %a –tl %m –ty %y –tc %c - %f |
| Swap Byte Order | True |
| Write Wave Header | True |
The default byte ordering assumed for WAVE data files is little-endian, so it is the i386 architecture, so the Swap Byte Order should not be required. But I need this option, otherwise extracted audio is white noise.
Byte order swapping can also be accomplished by the lame -x switch.