Apple has released Logic Pro X 10.0.7, a massive update with over 330 enhancements and bug fixes. The biggest news is that the professional audio app now supports 24 simultaneous processing threads on 12-core Mac Pro models, which should provide a nice boost in performance. The release also enables you to insert current volume, pan, and send values for all selected tracks at the playhead position; improves the Drummer track’s timing if Low Latency mode is enabled; enables you to paste automation at the playhead or marquee selection area; consolidates the Snap, Alignment Guides, and Snap to Grid settings within the Snap menu; and improves import and export of XML with Final Cut Pro X. ($199.99 new in the Mac App Store, free update, 828 MB, release notes, 10.8.4+)
View Extra Audio Details in Snow Leopard
In Snow Leopard, Option-clicking the Volume icon in the menu bar displays a list of sound input and output devices. Choose one to switch to it; it's much easier than using the Sound preference pane. Also, hold Shift and click the icon to set the system volume, which is separate from the general output volume.