Unlike many granular synthesizers, Portal does not require you to load a sample into the plug-in, but rather applies itself as an effect to the incoming audio signal. Portal lets you adjust the grain with parameters like density, offset, size, count, and shape. You can control the pitch shifting of grains, which can lock to a selectable scale, if desired. The grain section, which is accessible on the advanced page, also features time stretching, tempo-syncing grain delay, and low and high filters. 

Parameters can be mapped to two macros, which you can then control with a large X/Y pad. The developers took the opportunity to integrate some cool graphics that really make you feel like you’re sending your sounds into another dimension. For modulation, Output Portal includes two looping envelopes, which seem to be very flexible. You can edit them graphically, and it looks like they can take many shapes from simple curves to complex rhythmic patterns. The envelopes can control any parameter, allowing you to modulate all aspects of the granular synthesis. 

Key Features

• 250+ presets for instant playability
• A circular XY Control linked to granular parameters
• Powerful time manipulation engine
• Tempo-synced grain delay
• Scale-based pitch modulation
• 7 built-in FX with an additional master compressor and filter
• Value readout for better understanding of controls
• Favoriting feature in Presets menu
• Built-in Tool Tips on Advanced page
• New for v1.2.0: Native Apple Silicon Compatibility for M1, M2 and beyond