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Block Reference

Sine Wave


The Sine Wave block generates a sine wave at the specified frequency and amplitude.

How to Use

The Sine Wave block is useful for troubleshooting audio wiring (polarity and broken wires) and for measuring audio output level with digital multi-meters or oscilloscopes.

Adding the Block to Your System
  1. Click the Processing tab to open the Processing Workspace.
  2. In the palette area, click the DSP tab.
  3. Expand the Misc: level, delay, meter... category of blocks.
  4. Click and drag the Sine Wave block into your Processing Map.
  5. Wire the output from the Sine Wave block to the appropriate block.
  6. (Optional) Customize the names of the block and the output node by clicking their current name and then typing the custom name in the text box that appears. Click the X to save the name.
Configuring the Block
  • Open the Sine Wave block's properties by double-clicking the block or hovering and clicking the properties icon that appears in the upper right of the block's title bar. From here, do the following:
    • Unmute the block and use the Frequency and Amplitude settings to set the desired volume.
    • View the output meter which shows the rms and peak amplitude of the generated signal. The peak is always 3 dB above the rms level due to the sine wave’s constant 3 dB crest factor.

note: The Sine Wave block is muted by default.


User Interface Elements
Sine Wave Block

Sine Wave Block

UI Element Purpose
Output node Connection point for wiring the sine wave output


Sine Wave Block Properties

Sine Wave Block Properties

UI Element Purpose

Manual control for setting the frequency of the sine wave. Range is 20 Hz to 20000 Hz.

Default = 1000 Hz


Specifies the amplitude of the sine wave output. Range is -100 dBr to 0 dBr.

Default = -30 dBr

Output Meter Indicates the sine wave signal’s rms and peak amplitudes in dBFS and dBr. The peak is always 3 dB above the rms level due to the sine wave’s constant 3 dB crest factor.

Mutes the block's output

Default = Checked (muted)