Record audio from several audio cards in MP3 / 30 minutes chunks
Hello, and thanks in advance.
I need to continuosly record audio from 4 fm radios, in 30 minutes chunks. For that, I have 4 FM analog radios, and 4 audio cards in the PC, with a minijack-stereo cable connecting them. Currently I'm using a MS-Windows program called TotalRecorder to record in MP3 from these 4 audio cards, but it hangs frequently -what a surprise, is windoze.
So I need an advice. Which program can be used to do this same task in Linux? I would rather prefer not to use any GUI, because that seems to make the server a little more fragile. I also can use any distro, but would prefer Centos since my other servers are Centos.
Audio quality can be mono / 32 kbps or something like that, because the source are news in FM Radio, not music. MP3 seems to be the best option to record because is widely supported, but in fact the record format can be anything compact that audacity can edit.