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Sound Synthesis

Alien Bird Call Convolution

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The Alien Bird Call Convolution board in the WaveWarp DrawingBoard
Alien Bird Call Convolution — the board as it opens in the WaveWarp DrawingBoard.

What it does

AlienBirdCallConvolution

Combines the outputs of "AlienMorseCode.dwb" and "BirdCall.dwb" by convolving them together.

Illustrates the use of the amplitude & frequency controlled oscillators (the orange blocks). Each generates a tone at an amplitude and frequency determined by its control inputs "A" and "F", respectively.

The Combo Control Generators(A) generate modulated "A" signals, and the Combo Control Generators(F) generate modulated "F" signals. For added effect, the amplitude control signals are used to modulate the frequency control signals (via the red "multiply" blocks). The outputs of each oscillator are convolved via the "Convolution" block (which performs a multiplication in the frequency domain). Highly elaborate nested modulated oscillators can be built this way.

Throughout WaveWarp there is a consistent system: any block which requires a red "A" input must generally take its input from a block which generates a red "A" (amplitude) control output. (You may deviate from this system but the results may be unexpected !)

The default settings sound like alien morse code modulated by a bird call. Experiment with all settings to explore the wide range of interesting tones which can be generated by the WaveWarp oscillators.

Effects used

10 blocks 11 connections
In WaveWarp, 1998

How the original documented it

AlienBirdCallConvolution Combines the outputs of "AlienMorseCode.dwb" and "BirdCall.dwb" by convolving them together. Illustrates the use of the amplitude & frequency controlled oscillators (the orange blocks). Each generates a tone at an amplitude and frequency determined by its control inputs "A" and "F", respectively. The Combo Control Generators(A) generate modulated "A" signals, and the Combo Control Generators(F) generate modulated "F" signals. For added effect, the amplitude control signals are used to modulate the frequency control signals (via the red "multiply" blocks). The outputs of each oscillator are convolved via the "Convolution" block (which performs a multiplication in the frequency domain). Highly elaborate nested modulated oscillators can be built this way. Throughout WaveWarp there is a consistent system: any block which requires a red "A" input must generally take its input from a block which generates a red "A" (amplitude) control output. (You may deviate from this system but the results may be unexpected !) The default settings sound like alien morse code modulated by a bird call. Experiment with all settings to explore the wide range of interesting tones which can be generated by the WaveWarp oscillators.

Components used (1998)

Multiply Controls with GainCombo Control Generator (F)Combo Control Generator (A)Multiply Controls with GainCombo Control Generator (F)Combo Control Generator (A)Controllable Combo Oscillator (F,A)Controllable Combo Oscillator (F,A)Output Stereo WAVE DriverConvolution