Using GUI Sound Editors

If you prefer to use a GUI sound recorder, you can do so. Two common tools to do this are GNOME Sound Recorder (gnome-sound-recorder, part of the gnome-media or gnome-media2 package on most distributions) and krecord or krec, part of KDE and distributed in a package called krecord or kdemultimedia on most distributions. The GNOME Sound Recorder is typical of these simple programs: Click the Record button to begin recording, and click Stop when you're done. The program displays its current recording settings near the bottom of its window. You can change them by picking Edit O Preferences and using the Sound tab.

To do more with your recorded sounds, you need a more powerful package. Examples of such tools include GNU/Linux Audio Mechanics (GLAME; http://glame.sourceforge.net) and Sweep

(http://www.metadecks.org/software/sweep/). These packages are full-featured audio editing tools. Figure 8.1 shows GLAME in action. This program uses a main window in which all of the open files are summarized and another window for each file. These editing windows display the sound files visually as waveforms. Using this display, you can select part of the sound file and apply various operations to it—you can cut the fragment, modify its volume, boost its bass level, and so on. These options are all available from a menu you obtain by right-clicking in the editing window. You can also zoom in and out. This fact makes it possible to zoom in on a very short sound, such as a pop in a recording taken from an old LP record. You can then modify that sound; for example, you could reduce the volume of the pop to an inaudible level.

Figure 8.1: GUI sound editors let you modify sounds using visual representations of the audio waveform.
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