Make Audio Wave (vuo.audio.wave2)

Calculates a set of values for a simple audio waveform.

Each time this node’s Calculate Samples port receives an event, it will calculate a new set of values. If you change Wave or Frequency, the waveform changes smoothly to its new shape.

You can use this node to produce a tone at a specified pitch. Connect the Fire at Audio Rate node’s output to this node’s Calculate Samples port, then connect this node’s Samples output to the drawer attached to the Send Live Audio node.

• Calculate Samples — Generate a new set of audio samples.
• Wave — The shape of the waveform (sine, triangle, or sawtooth).
• Frequency — The number of cycles per second (Hz) in the calculated waveform. The musical note A₄ has a frequency of around 440 Hz.
• Set Phase — Changes the current position in the waveform. At 1, the phase is back to the beginning of the cycle. This is useful for controlling the interference between multiple waves.
• Samples — A set of calculated waveform values, ready to be filtered or output.

Keywords: DCO, LFO, NCO, VCO, cosine, frequency, oscillator, period, phase accumulator, sawtooth, sine, triangle

Example compositions:

• Play Audio Wave: Generates a pitch controlled by the vertical position of the mouse.
• Play Blues Organ: Plays notes when you press keys on the keyboard.
• Pan Audio: Pans audio between the left and right speakers. For this to work, you need stereo speakers or headphones.
• Synchronize Oscillators: Demonstrates how it sounds to synchronize the phase of 3 sawtooth oscillators, each with a slightly different frequency.