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Tones and Noise (Direct) (G Dataflow)

Version:
    Last Modified: January 9, 2017

    Generates a signal composed of a sum of sine tones, noise, and DC offset.

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    noise amplitude

    RMS level of the additive Gaussian noise.

    Default: 0

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    offset

    DC offset of the signal.

    Default: 0

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    reset

    A Boolean that controls the reseeding of the noise sample generator after the first execution of the node. By default, this node maintains the initial internal seed state.

    True Accepts a new seed and begins producing noise samples based on the seed. If the given seed is less than or equal to 0, the node ignores a reset value of True and resumes producing noise samples as a continuation of the previous sequence.
    False Resumes producing noise samples as a continuation of the previous noise sequence. The node ignores new seed inputs while reset is False.

    Default: False

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    tone amplitudes

    An array in which each element is a single tone amplitude.

    The size of this array must match the size of the tone frequencies array and the size of the tone phases array.

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    tone frequencies

    An array in which each element is a single tone frequency.

    The size of this array must match the size of the tone amplitudes array and the size of the tone phases array.

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    tone phases

    An array in which each element is a single tone phase in degrees.

    The size of this array must match the size of the tone frequencies array and the size of the tone amplitudes array.

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    seed

    A number that initializes the noise generator.

    The value of seed cannot be a multiple of 16364. If reset is unwired, this node maintains the internal seed state.

    seed is greater than 0 Generates noise samples based on the given seed value. For multiple calls to the node, the node accepts or rejects new seed inputs based on the given reset value.
    seed is less than or equal to 0 Generates a random seed value and produces noise samples based on that seed value. For multiple calls to the node, if seed remains less than or equal to 0, the node ignores the reset input and produces noise samples as a continuation of the initial noise sequence.

    Default: -1

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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.

    Default: No error

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    sample rate

    Sampling rate in samples per second.

    Default: 1000

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    samples

    Number of samples in the signal.

    Default: 1000

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    tones and noise

    Generated output signal.

    This output returns a waveform or an array of double-precision, floating point numbers.

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    error out

    Error information. The node produces this output according to standard error behavior.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported


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