from the standard adult voices "Ralph", "Fred" and "Kathy", and children's voices like "Princess" and "Junior", various novelty voices were included, like "Whisper", "Zarvox" (a robotic voice with melodic background sounds, with a similar voice called "Trinoids" also included), "Cellos" (a voice that sang its text to an Edvard Grieg tune, otherwise known as "In the Hall of the Mountain King" with similarly singing voices like "Good News", "Bad News", "Pipe Organ"), "Albert" (a hoarse-sounding voice), "Bells", "Boing", "Bubbles", and others. Each of these voices came with its own example text, that would be spoken when one hit the "Test" button in the Speech control panel. Some would just say their name, language and the version of MacinTalk they were introduced with. Others would say funny things, like "I sure like being inside this fancy computer", "I have a frog in my throat... No, I mean a real frog!", "We must rejoice in this morbid voice" (a parody of Western church hymnody with organ music), or "The light you see at the end of the tunnel is the headlamp of a fast approaching train". These voices as well as their test texts are still in Mac OS X today. With the increase in computing power that the AV Macs and PowerPC based Macintoshes provided, Apple could afford to increase the quality of the synthesis. MacinTalk 3 required a 33 MHz 68030 processor and MacinTalk Pro required a 68040 or better and at least 1 MB of RAM. Each synthesizer supported a different set of voices. Text-to-speech in Mac OS X Text-to-speech has been a part of every Mac OS X (later macOS) version. The Victoria voice was enhanced significantly in Mac OS X v10.3, and added as Vicki (Victoria was not removed). Its size was almost 20 times greater, because of the higher-quality diphone samples used. A new, much more natural-sounding voice, called "Alex" has been added to the Mac text-to-speech roster with the release of Mac OS X 10.5 Leopard. With Mac OS X 10.7 Lion, voices are available in additional U.S. English and other English accents, as well as 21 other languages. The Speak selected text when key is pressed feature allows selected text from any application to be read via a key combination. From Mac OS X 10.1 to Mac OS X 10.6, the feature would copy the selected text to the clipboard and read it from