Hello all, thanks in advance for your help. Here is what I have for ya.

I'm trying to constantly record audio from the mic jack of my sound card and also make the current or "live" audio available on a tcp port of my choice.

I'm using this to monitor and hopefully record audio from a VHF marine band radio. I'm currently using the following command to make the audio available over port 41410.

netcat -l-p 41410 -e /usr/bin/radio.sh

The following is contained in a script "radio.sh"
--CUT--
arecord -q -t wav -f cd | lame --quiet -b 24 -mm - -
--CUT--

This has been working wonderfully but, as I said above I would also like to record the audio at the same time. I tried using "tee" to send the audio to a file and also to a named pipe, then reading from that pipe when I connect through netcat but, (as you probably guessed) when the pipe is full (64k) the regular file also stops at 64k.

I hope that spells it out well enough. Any ideas?

You could try sox.

I use it to record from a line in and send the output to my shoutcast server so I can listen to it and also have a copy saved.



sox -t ossdsp -w -s -r 44100 -c 2 /dev/dsp -t raw - | lame -x -m s - /path/to/shoutcast.mp3


I'm not sure how you would rework it for your setup. maybe change the /dev/dsp to your mic in file...

Thanks for the idea but, my problem is that I need to record 24/7 (read archive) and occasionally listen in on the live audio. You probably record your audio then play it back from the beginning, whereas I want to play it from the end (if that makes any sense). If I record 48 hours worth of audio, I don't want to have to seek all the way to the end of the approx. 500MB file to get to the live or most current portion. If I'm seeing it correctly I believe the command you posted is essentially the same with the exception of sending the audio to a file instead of STDOUT. But, if I were wrong, it wouldn't be the first time.

Hmm, yeah I use it to record something that I want to listen at work that doesn't have web broadcast but is available on the AM/FM radio. The command I posted saves it to a file then I use that mp3 in shoutcast to listen to it live as well. The draw back is you have to listen to it from the start of the recording to truly get it live. If you start listening 30 minutes into it then it starts from the beginning of the record time, so you're 30 mins behind.