2013-01-31 Now that Ralf has given me the audio recordings of my recent talk at upLUG, I worked on them today. It seems as if the microphone was placed to near to the video projector, whose fan made a con- stant background noise. I used to use ReZound for audio editing but this time Audacity proved the better choice. Removing noise with Audacity was easy. I haven't adjusted the switches much as the default noise removal settings were quite good. Afterwards, I concatenated the two parts of the recording and cut the beginning and end. (I should have done that first.) Having the finished WAV file, I converted it to mp3 and ogg using lame(1) and og- genc(1) with the default settings: lame talk.wav talk.mp3 oggenc talk.wav As I've wanted to transcribe my talks for a long time, I took an hour today to do some tests in this direction. I started mplayer(1) with remote control via a named pipe: mkfifo /tmp/mplayercontrol mplayer -slave -input file=/tmp/mplayercontrol talk.mp3 (Hint by [0] ) Then I used xbindkeys(1) to control mplayer with arbitrary keys without the need to focus the mplayer terminal. I created this minimal configuration file: "echo seek -5 >/tmp/mplayercontrol &" F6 "echo seek +5 >/tmp/mplayercontrol &" F7 "echo pause >/tmp/mplayercontrol &" F8 Then, I started xbindkeys, opened my editor and started to tran- scribe. I hit on F8 and F6 as needed and typed as fast as possi- ble. Automatic short pauses or loops would improve the setup as I would not need to control the playback manually. Typing at the spoken speed is impossible for me most times. (Slower playback speed is a bad choice as the pitch changes.) These are my first experiences in this transcribing talks. I'd like to acquire more experience and create good a good setup to work with. Then I'd like to see if croud sourcing this task is possible. When I when to install ReZound on my Crux system I needed to solve several problems. Archlinux's package [1] helped. For large software packages, source-based systems like Crux and sim- ple package tools are not convenient anymore. Maybe I should maintain a separate system (with Debian for instance) for such programs and work. [0] http://stackoverflow.com/questions/4976276/is-it-possible- to-control-mplayer-from-another-program-easily [1] https://aur.archlinux.org/packages/rezound/ http://marmaro.de/lue/ markus schnalke