VU Meter
This screensaver displays volume level in a form of traditional VU Meter. There are several configuration settings which should be done in order to use this screensaver. The details of these settings are described in the PeppyMeter wiki.
This screensaver depends on the peppyalsa plugin which provides volume data in the named pipe. The screensaver reads that data from the other end of the pipe. The plugin should be installed in order to use VU Meter screensaver functionality.