One of the first things I discovered when I switched to Mac was the ability to control the computer with your voice. I am usually a keyboard shortcut guy, but lately I’ve started to use Speech to control my Mac. If you have never tried Speech before, you should give it a try. In the System Preferences, there is a preference panel named “Speech”. To enable it just select “On” for Speakable Items. A new little widget-looking window will pop-up. Now to start using speakable items, you can just hold down the Escape key and give a command. To get the list of commands just click on the arrow on the bottom of the speech window and select “Open Speech Commands Window”, or you can just hold down the Escape key and say “Open Speech Commands Window”. You can change the default speech recognition key from Escape to your choice by selecting “Change Key” in the “Settings” panel. And if you don’t want to hold down a key at all, select “Listen Continuously with keyword”. Now, just type in a Keyword, ex. Computer, and select when and if you need to say the keyword.
Some people find it difficult to use speech recognition, because they are either in the wrong environment or they need to correct settings. Speech recognition can only work when in a quiet environment. If you are playing a song in iTunes, or a DVD in DVD Player, you will find it very hard to get speech recognition to respond to your voice. Make sure you are close to your Mac, and you are speaking loud enough. To check if you are loud enough, when speaking look at the look at the blue, green, and red bars. These bars react to the loudness of your voice, so try to speak so it stays at the green level. If you are still having trouble with speech recognition, just select “Calibrate” to change the volume of the microphone. You can test when calibrating by speaking some of the phrases on the left, and if the phrase blinks, the computer understood the command.
If you go to the “Commands” panel, you can choose what commands you want to use for speech recognition. I would select all of the options, but the Menu Bar is least necessary. With the “Front Window” option selected, you can control the buttons in the frontmost window, ex. “Cancel” or “Save”. You can create your own commands by saying “Define a Keyboard Command”. Then, you will be given a dialog box where you can type in the keyboard combo of the command, such as command-P. Then, type in what you want to say for that keyboard combo, maybe “Print”. Then, you can choose if you want the command in all applications, or just the frontmost app.
If the speech recognition window is a bit too annoying, just double click on it, and it should go right into the dock. If you have ever played Mac OS X Chess, you can use the speech recognition to move the pieces and control the game. And if you would like to control Exposé with speech recognition, Macworld has a great article for you.
Speech recognition is a pretty cool feature for Mac OS X, but maybe Leopard will build on these features, maybe include a speech-to-text feature.