Table Of Contents

Sound Input Configure (G Dataflow)

Version:
    Last Modified: March 15, 2017

    Configures a sound input device to acquire data and send the data to the buffer. Use Sound Input Read to read the data.

    You must have DirectX 8.0 or later to use this node.

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    number of samples/ch

    Number of samples per channel in the buffer. Use a large number of samples for continuous operations. Use a smaller number of samples if you want to use less memory.

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    sample mode

    Setting to acquire samples just once or continuously.

    Name Value Description
    Finite Samples 0

    Acquire samples just once. In this mode, call this node only until you have written the number of samples specified in number of samples/ch.

    Continuous Samples 1

    Acquire samples continuously. In this mode, you can call this node repeatedly as needed.

    Default: 1—Continuous Samples

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    device ID

    The input or output device you access for a sound operation. The value ranges from 0 to n-1, where n is the number of input or output devices on the computer. In general, most users should select 0.

    Default: 0

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    sound format

    The acquisition rate, the number of channels, and the bits per sample of the sound operation. The values for each of these controls is dependent on your sound card.

    Not all operating systems and sound cards support all sound format options.

    Performance Details

    sample rate (S/s) bits per sample
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    sample rate (S/s)

    Sampling rate for the sound operation. Common rates are 44,100 S/s, 22,050 S/s, and 11,025 S/s. The default is 22,050 S/s.

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    number of channels

    Number of channels. This input can accept as many channels as the sound card supports. For most sound cards 1 is Mono and 2 is Stereo.

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    bits per sample

    Quality of each sample in bits. Common resolutions are 16 bits and 8 bits.

    Default: 16 bits

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    error in

    Error conditions that occur before this node runs.

    The node responds to this input according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Default: No error

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    task ID

    An identification number associated with the configuration on the specified device. You can pass task ID to other sound operation nodes.

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    error out

    Error information.

    The node produces this output according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: This product does not support FPGA devices


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