What is involved in recording all your qso's in a contest?
K5TR has mp3 audio files online where he recorded entire contests, but broken into one hour segments. How did he (or anyone) set this up?
I use a standalone computer just for recording. The good news is that it does not have to be much of a computer.
Many of the windows contesting programs have recording built in - but I do not have any experience with those. I am still using an MS-DOS based contest logging program. I will not claim that this is the best way or the easy way but it has worked. The only issue I have is that linux and/or the various linux distributions keep changing how they do audio and that has made my life hard though up grades. I think I am going to explore using some version of Icecast to stream to a local icecast server all on the same machine but I have not gotten very far on that project.
I have done several different things over the years but here is what I have been doing most recently:
I use a computer running linux. I use sox and lame to do the recording. The lame setting I have been using that gives me the quality that I like uses a little under 21 Mb/hour. I restart the recordings at the top of each hour using a cron job. I have found it is much eaiser to deal with 24 or 36 or 48 21Mb files than it is to mess with one big file.
I am not an expert with lame ... but here is what I have been using most recently with very good results.
sox -t ossdsp -w -s -r 44100 -c 2 /dev/dsp -t cdr - | lame --verbose -r -b48 --scale 3.5 - contest.mp3
My command line is a bit more complicated as I get the time and date from the computer and put those in. You could
also stuff info into the id3 tags as well.
I use a cron job to restart the process every hour - thus creating a new file each hour.
Here is an example from an IARU contest first hour:http://www.kkn.net/~k5tr/audio/contests/IARU/2005/2005-IARU-K5TR_2005-07-09-12:00.mp3
There are more contests here:http://www.kkn.net/~k5tr/audio/contests/
If you poke around in there you will notice that there are some smaller and maybe larger file sizes - this is because I have been playing with the lame settings. Some use VBR and one or two are mono recordings because I did not notice that I was not recording in stereo. I use stereo most of the time since I want to record the two radio audio.
I am sorry I did not see this question back when you first posted it.
George - K5TR