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I need to maintain a a backlog of a radio station's audio for a period of 90 days. Previously, I have been using RealProducer on a Windows machine. I got tired of the Windows machine crashing so I have upgraded the system to Red Hat 9 and am using SOX and LAME to encoder audio in real time to MP3. The encoding is working but I want to be able to use the highest compression rate available since quality is not that important.
I have tried encoding at a bit rate of 8k but when I play back the file, it plays very quickly. I have tried using several MP3 players but they all play the files too quickly. Here is the command I am using to do the encoding:
I really can't encode at a bit rate greater than 8 k because I would run out of space. With the settings above, the size of file is comparable to a RealAudio file at 8k but the RealAudio files sounds better IMHO. Do you have any experience with OGG files? I wonder if they would be better for audio archival purposes.