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The other option is to keep both sets of files-the ones at the lower bit rate for your iPod, say, and the higher bit rate files for iTunes Match. Splasm’s Audiobook Builder can simplify some of the conversion needed to prepare audiobooks for iTunes Match, as well as join files so you have fewer files. Then check Optimize For Voice, and click the OK button three times to save your changes and dismiss all windows. From the Setting pop-up menu, choose Custom, then use the following settings: Stereo Bit Rate: 96 kbps Sample Rate: Auto and Channels: Mono (unless you’ve ripped in stereo, such as for full-cast recordings). In the Import Using pop-up menu, you can choose either AAC Encoder or MP3 encoder neither offers any particular advantage for use with iTunes Match. To do so, go to the the General tab of iTunes’s preferences, then click on Import Settings. In other words, you can convert the files from their existing bit rates to 96 kbps, so you can use them with iTunes Match. If you have ripped audiobooks in your iTunes library at bit rates of less than 96 kbps, you have the option of up-sampling them. (If you have a lot of audiobooks, you can use more genres just type in the ones you want, such as Fiction, Non-Fiction, History, Romance, and so on.) These files will get uploaded to iTunes Match, and you’ll be able to access them from other devices from their genre, or from the artist’s name (generally the author). Instead, leave them as music-which they will be by default when you rip a CD-and set their genre as Spoken Word or Audiobook. You can see that this files of audiobook, the Naxos Audiobooks recording of James Joyce’s Ulysses, are “not eligible” for iTunes Match. If you do this, the books will end up in the Books library, which iTunes Match ignores. After doing so, make sure that you don’t select the tracks, press Command-I, go to the Options tab, and select Audiobook from the Media Kind menu. However, if you want to put your audiobooks in the cloud, you can start by ripping them-or at least the ones you want to have iTunes match-at 96 kbps. This makes sense, in order to save space, since audiobooks don’t need to be at a bit rate as high as music, and are usually very long.
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If you followed my instructions on ripping audiobooks, you almost certainly have books at less than 96 kbps. And, second, even if your audiobooks are not in that library, iTunes Match won’t match anything that’s at a bit rate of less than 96 kbps. First, it doesn’t match anything in your Books library. There are two reason why iTunes Match doesn’t match your audiobooks. If some or all of your audiobook collection comes from either CD rips, DRM-free downloads, or MP3 CDs (CDs that contain MP3 files), then there are some simple steps you can carry out to get your books to work with iTunes Match.