Numerical Audio has introduced SF-1 for iOS, a dual stereo filter effect with a focus on expressiveness.

SF-1 is built around 2 true stereo multimode filters that can be configured to run in series, parallel or one per channel. It offers dual-tempo sync-able LFOs, Envelope Follower, XY-Pad and Motion Sequencing.

SF-1 features an X/Y Pad that can be mapped to any parameter, and Motion Sequencing of 1 to 8 bars, synchronized to the host tempo.

Features:

• Dual Stereo Filter
• 2 Filter Models: SEM & Transistor Ladder
• 3 Filter Modes each: LP, HP, BP
• Serial, Parallel or Channel Split Routing
• Dual LFO with Tempo Sync
• Envelope Follower
• XY-Pad with Automation
• Pad Lock / Latch
• Pad-Engage/FX Release for Smooth FX Trails

Connectivity:

• Standalone
• AUv3
• IAA
• AudioBus (Filter)

MIDI:

• Tempo Sync
• CC Control
• XY-Control

Pricing and Availability:

SF-1 for iPad is available now with an intro price of $4.99 (ends June 3rd, normally $5.99).