SI Config (Macintosh, Windows)

Configures your sound device for sound input operation. After configuration, you can use the SI Start VI and the SI Read VI to transfer data from device.

device is the input device you access for a sound operation on Windows 2000/Me/NT/98/95. This value is ignored on the Macintosh operating system. The value ranges from 0 to n-1, where n is the number of input devices on your computer. Use the Call Library Function Node to call Windows API functions to query the number of input or output devices on your computer and the capacity of each device.
sound format specifies how the sound operation is set up (Mono or Stereo), sets its playing rate (speed), and sets up the sound as 8 or 16-bit sound.

Note  When recording, setting the sound quality to stereo and setting the rate and bits per sample high uses more of your computer's memory. Also, some sound cards do not support high rates or 16-bit sound.
sound quality sets up the sound operation as stereo or monaural.
rate sets the sample rate for the sound input operation or the update rate for the output operation. You can choose from 11025, 22050, or 44100.
bits per sample sets up the sound operation for 8 bits or 16 bits per sample.
buffer size is the size of the internal buffer that LabVIEW uses to transfer data from a device. If you receive an overwrite error, increase the buffer size. The default value is 8192 bytes.
error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurs before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
code is the error or warning code. The default is 0. If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
task ID out returns an identification number associated with the configuration on the specified device. task ID out can be passed to other sound input operation VIs.
error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out indicator on the front panel and select Explain Error from the shortcut menu for more information about the error.
status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
code is the error or warning code. If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.