Granular synthesis is a basic sound synthesis method that operates on the microsound time scale. These small pieces around 1 to 50 ms are called Grains. Multiple grains may be layered on top of each other, and may play at different pitch, phases, volume, among other parameters.
On the microsound time scale, sound can edit and process into small grains, and grains can be laid in different ways. This technique unlocks the potential of short WAV files to deliver a rich and immersive audio experience.
Granular Synthesis Compound audio object is composition of eight audio objects.
- Granular Synthesis: Granular Synthesis enables and disables Pitch Shift channels, which allow you to access different offsets in a WAV file and send pitch and offset values to different channels. Then, receive the audio signal from Pitch Shift and apply the generated window table to it. Granular Synthesis also combines all grains and output.
- Control Mixer:
- LUTs: The LUT audio object generates outputs for Granular Synthesis parameter value according to engine real-time signals.
- Control Modulators: The Control Modulator generates randomness for Granular Synthesis parameters according to the tuned functions and amplifies the randomness according to engine real-time signal.
- Pitch Shift: The Pitch Shift read the WAV file stored in flash and generate a pitch-shifted audio signal.
- Biquad:
- Gain: Gain audio object applies master gain on the output of Granular Synthesis.
- Limiter: The Limiter limits Granular Synthesis output when the summed output of grains is too high.
The Granular Synthesis panel allows real-time updates to a Look-Up Table (LUT) used for audio tuning. If you keep the Granular Synthesis panel open while tuning any LUT with value (column 1) and modulation (column 2) columns connected to the Granular Synthesis audio object, then whenever the value (column 1) changes, the modulation (column 2) will be updated if the row in the Granular Synthesis panel corresponds to the selected grain.
