audiopy - a program to control the Solaris audio device. Contact: Barry Warsaw Email: bwarsaw@python.org Version: 1.1 Introduction Audiopy is a program to control the Solaris audio device, allowing you to choose both the input and output devices, and to set the output volume. It can be run either as a standalone command-line script, or as a Tkinter based GUI application. Note that your version of Python must have been built with the sunaudiodev module enabled. It is not enabled by default however! You will need to edit your Modules/Setup file, uncomment the sunaudiodev module spec line and rebuild Python. Using audiopy, you can select one of three possible input devices: the microphone, the line-in jack, or the CD in. These choices are mutually exclusive; you can only have one active input device at any one time (this is enforced by the underlying device). Some input devices may not be supported on all Solaris machines. You can also choose to enable any of the three possible output devices: the headphone jack, the speakers, or the line-out jack. You can enable any combination of these three devices. You can also set the output gain (volume) level. Running as a GUI Simply start audiopy with no arguments to start it as a Tkinter based GUI application. It will pop up a window with two sections: the top portion contains three radio buttons indicating your selected input device; the middle portion contains three checkboxes indicating your selected output devices; the bottom portion contains a slider that changes the output gain. Note the underlined characters in the button labels. These indicate keyboard accelerators so that pressing Alt+character you can select that device. For example, Alt-s toggles the Speaker device. The Alt accelerators are the same as those you'd use in as the short-form command line switches (see below). Alt-q is also an accelerator for selecting Quit from the File menu. Unsupported devices will appear dimmed out in the GUI. When run as a GUI, audiopy monitors the audio device and automatically updates its display if the state of the device is changed by some other means. With Python versions before 1.5.2 this is done by occasionally polling the device, but in Python 1.5.2 no polling is necessary (you don't really need to know this, but I thought I'd plug 1.5.2 :-). Running as a Command Line Program You can run audiopy from the command line to select any combination of input or output device, by using the command line options. Actually, any option forces audiopy to run as a command line program and not display its GUI. Options have the general form --device[={0,1}] -d[-{0,1}] meaning there is both a long-form and short-form of the switch, where `device' or `d' is one of the following: (input) microphone -- m linein -- i cd -- c (output) headphones -- p speaker -- s lineout -- o When no value is given, the switch just toggles the specified device. With a value, 0 turns the device off and 1 turns the device on. Any other value is an error. For example, to turn the speakers off, turn the headphones on, and toggle the cd input device, run audiopy from the command line like so: % ./audiopy -s=0 -p=1 -c Audiopy understands these other command line options: --gain volume -g volume Sets the output volume to the specified gain level. This must be an integer between MIN_GAIN and MAX_GAIN (usually [0..255], but use the -h option to find the exact values). --version -v Print the version number and exit --help -h Print a help message and exit Local Variables: indent-tabs-mode: nil End: