With audacity (package
audacity), record and edit
audio files. This is called hard disk recording. When you start the program
for the first time, select a language. At other times, change the language
+ + . The language change is then effective the next time you start
Click the red recording button to create an empty stereo track and start the recording. To change the standard parameters, make the desired settings under+ . and are important for the recording. Even if tracks already exist, pressing the recording button creates new tracks. Initially, this may be confusing, because these tracks cannot be seen in the standard-size program window.
Open themenu to the left of the track. This menu offers various options for different views and basic editing operations. To rename the track, select and enter a new name. The different view modes offered by Audacity include , , , and . Choose the one suiting your needs. If you want to edit each channel of a stereo track separately, select . Each channel can then be treated as a separate track. Set (in bit) and (in Hz) for each track.
Before you can use most of the tools offered in themenu, first select the channel and the segment of the track to edit. After making your selection, you can apply all kinds of modifications and effects to it.
Depending on the chosen file type, various view formats for segment selections are offered under+ . With , the segment boundaries can automatically be adapted to the selected view format. For example, if you select as the view format and activate , the segment boundaries are always selected in multiples of frames.
All editing tools come with tool tips, so should be easy to use. Thefunction, accessed with + , is a useful feature for viewing recent editing steps and undoing them by clicking in the list. Use with caution, because it deletes editing steps from the list. Once discarded, these steps can no longer be undone.
The built-in spectrum analyzer assists in quickly tracking down any noises. View the spectrum of the selected segment with+ . Select a logarithmic frequency scale in octaves with . If you move the mouse pointer within the spectrum, the frequencies of the peaks are automatically displayed together with the respective notes.
Remove unwanted frequencies with+ . In connection with the filtering process, it may be necessary to readjust the signal amplitude with . Additionally, use to check the amplitude. By default, the is set to 0.0 dB. This value represents the highest possible amplitude in the selected audio format. shows the value needed to amplify the selected segment to this peak amplitude. A negative value indicates over-amplification.
To save the entire project, select
describes the project. The actual audio data is saved in a directory named
after the project with
The entire project or the currently selected segment can also be exported as a stereo WAV file. To export the project in Ogg Vorbis format, refer to the information in Section 14.3.3, “Compressing Audio Data: Ripping” (↑Applications).