Re: [vdr] Converting a radio recording to MP3

mc8647tv@mclink.it wrote:

Thank you, I'm experimenting with the conversion. I'd like to boost the recorded volume a bit, since it's really low and listening to the file with an MP3 player is almost impossible.

Any idea ?

For a simple scaling, see "lame --scale". This will make things louder but may cause clipping.

To get something better you may need to use an automatic gain control (e.g. see "agc" on http://aaron.boim.com/unix/audioRecording.html) or some dynamic range compression (e.g. "sox --compand ..." http://sox.sourceforge.net/ ). You'll need to experiment to see what works best for you. If you want a GUI tool, try audacity http://audacity.sourceforge.net/

Jon