Coastline - Audio Effect
Instant atmosphere generator
About
This app generates unique audio atmospheres and textures for music production. It uses additive and granular synthesis to add depth and character to tracks, offering extensive modulation and a dual-engine sustainer.
What's New in Coastline
1.0.1
June 26, 2026
Day one maintenance update. Fixes some issues with modulation assignments and audio quality that surfaced during initial app review.
Developer apps
FAQ
What is Coastline?
Coastline is an audio effect application designed to generate unique atmospheres and textures for music. It utilizes a dual-engine sustainer with advanced synthesis and filtering capabilities to enhance musical compositions.
What kind of synthesis does Coastline use?
Coastline employs both additive and granular synthesis. The 'Tide' engine uses additive synthesis to reimagine sound frequencies, while the 'Glade' engine uses granular synthesis to stretch sounds infinitely without clicks.
Can I use my own samples with Coastline?
Yes, Coastline supports custom samples. You can load your own samples into the 'Audio Matrix' to introduce entirely new textures and intermodulate them with other audio channels.
How does Coastline handle modulation?
Coastline offers extensive modulation capabilities. You can modify any control using multiple LFOs, sequencers, smooth random sources, and performance effects to create dynamic and evolving sounds.
Is Coastline available on multiple platforms?
The application is available for iPhone, iPad, and iPod. Desktop versions for macOS and Windows are also available in VST3, AU, and AAX formats.
How much does Coastline cost?
Coastline is a paid application, priced at $11.99. This one-time purchase grants you full access to all of its features.
Does Coastline have ads?
No, Coastline is ad-free. As a paid application, it does not contain any advertisements, allowing for an uninterrupted creative workflow.
How often is Coastline updated?
Coastline was last updated on June 26, 2026, with version 1.0.1. While specific update frequency isn't detailed, this indicates ongoing support and development from the developer.