FD-1 Filter Delay is a versatile semi-modular effect plugin developed by Kai Aras for iPhone. This full version software is categorized under multimedia, specifically music and radio.

At its core, FD-1 is designed to create filter rhythms and grooves by routing the signal through a modulated filter section before feeding it into a delay stage. However, it offers much more than that. With a built-in step sequencer and low-frequency oscillator, users can create rhythmic filter sequences that can be either free-running or tempo-synced to a host application.

The semi-modular nature of FD-1 allows for extensive modulation possibilities. Every control within the plugin can be a modulation target, resulting in a wide range of effects and combinations. Users can achieve effects like chorus, flanger, analog and tape-style echoes, and even complex stutter and repeat effects.

Key Features:

• VA Multi Mode Filter with 2 & 4 Pole options
• Digital Stereo Delay with Tempo Sync and Time Range Control
• Analog Style Step Sequencer
• Low-Frequency Oscillator
• Easy-to-use Mod Matrix
• Input Low-Cut and Drive Controls
• Individual Return Levels for Filter and Delay

FD-1 Filter Delay offers various connectivity options, including standalone usage, AUv3 support, IAA compatibility, and AudioBus integration for the filter. MIDI control is also available, with tempo sync and CC control capabilities.

To use FD-1 Filter Delay, your iPhone must be running iOS 9 or later. It is recommended to use an iPad 4th generation or newer for optimal performance.