Audio Applications Support for MP3s You’ll notice that MP3 is missing. Red Hat decided to disable MP3 support by default, in view of legal concerns surrounding patents and licensing. However, you can reinstate such features by installing the XMMS MP3 update from various Internet sites. You simply need to install the xmms-mp3 RPM, which consists of the following two files: /usr/lib/xmms/Input/libmpg123.la /usr/lib/xmms/Input/libmpg123.so Also provided is the source or SRPM from which the binary RPM was built. This is the same SRPM shipped with Red Hat Linux 9 except that it uses the unrestricted XMMS source (i.e. has MP3 support), and has been modified to create the xmms-mp3 sub package. The package can be downloaded from http://www.gurulabs.com/downloads.html. You would then install the RPM using a command line similar to the following, depending on the package name: rpm -Uvh xmms-mp3-1.2.7-13.p.i386.rpm Finally (although we won’t discuss them here), it’s worth noting that there are xmms extensions that provide a number of other features, including visualization, skins, and effect plug-ins (for simulating echo, stereo, and other effects). CD Burning and Ripping Utilities This section covers some of the utilities that Red Hat Linux provides for writing data to CDs and DVDs (a process known as burning). We’ll also cover the utilities for taking digital data from the audio tracks of a CD (known as ripping) and turning them into MP3 files (known as encoding). The MP3 files can then be stored on your hard disk and played through the XMMS application that we discussed earlier. Extracting Audio Files from CD to MP3 First, let’s consider the task of extracting audio files from CD into MP3 format. The utility of choice for this task is cdparanoia, which is installed by default within Red Hat 9. It can be run only from the command line, but it is very flexible and you can have a lot of fun learning what all the different parameters are for. To find out about all the different parameters, just type the application name at the command line: $ cdparanoia … USAGE: cdparanoia [options] [outfile] OPTIONS: -v –verbose : extra verbose operation -q –quiet : quiet operation -e –stderr-progress : force output of progress information to stderr (for wrapper scripts) … In its simplest form, the following command line will extract all the tracks on a CD and store them in separate files in the current working directory: 151

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