There is going to be an interview at this online radio:

http://www.radiolinhadireta.org.br/aovivo/index.html

I want to record the interview.

I have captured audio streaming before with mplayer, but this one is tougher, it's Flash. The HTML in that page reveals this:

I have been searching high and low for methods to capture that, unsuccessfully. I also tried rtmpdump since it's an rtmp:// address, but it doesn't work either.

I definitely prefer a pure Linux solution, but if there really is none, I will take suggestions of Windows applications that I can run with Wine or VMWare.

The trick at http://bournetoraiseshell.com/articl...01116231547304 may work for you.

Thanks, but that requires pulse audio, from which I am happy to stay away.

Hi
RTMPDump seems to work OK, look at command here --> http://pastebin.com/raw.php?i=V7qs1bbp

Audacity can do this while you listen, just set up the recording source to be the monitor stream of your sound device.

recording your machine's sound output with alsa is perfectly possible, but incredibly difficult.
but it may be possible to get hold of the streams direct URL, thus bypassing flash.
try streamripper and streamtuner2.

edit: forget all that. rtmpdump is the way to go, just copy/paste the command from bat999's pastebin.