Marble/VoiceOfMarble/Recording

Audacity is an open source audio recorder. It's a good choice to do your voice recordings for Marble. Of course it's also possible to use different software if you want to.

Initial Setup

Ask your system administrator to install audacity on your system if it's not installed yet. Audacity is available in any sane Linux distribution. Versions for Mac and Windows exist as well.
Connect your microphone to your system
Start audacity

Voice Sample Recording

Get another voice sample to speak from the translations page
Press the record button in audacity
Speak the text
Press the stop button
Play the spoken text. If it's not ok, record it again
Cut any excessive silence at the start and the end
Normalize the voice sample (effects menu)
Export the voice sample (File, Export) as ogg vorbis. See the translations page for the filename

Tips

Make sure no other sound disturbs your recordings.
Repeat several recordings to find the optimal volume setting of the microphone
Sometimes it's easier to speak longer sentences or to repeat the same text several times and to cut the recordings afterwards
Don't record everything in one go, but make smaller breaks between. Try to avoid longer breaks though (e.g. lunch).
Don't rush. Quality recordings take their time
Try to speak clearly so that it's easy to understand your voice while driving.
Think about proper [[1]] of samples that are supposed to get concatenated.