Frequently Asked Questions

μcor is a browser-based modular synthesizer platform that lets you create, connect, and experiment with unlimited virtual audio modules. Unlike physical modular synthesizers, μcor runs entirely in your web browser with no installation required, and provides an infinite canvas for building complex patches that would be impossible with hardware.

It works on desktop browsers, can be installed as a desktop app, and is available as a Progressive Web App (PWA) on mobile devices.

No installation required! μcor runs directly in your web browser. Simply visit the website and start creating.

However, you can optionally install μcor as:

• Desktop App: Click the install button in your browser's address bar for a native app experience
• Mobile PWA: Add to home screen on iOS/Android for offline access and app-like functionality

μcor works best on modern browsers with Web Audio API support:

• Recommended: Chrome 90+, Edge 90+, Safari 14+, Firefox 88+
• Mobile: Chrome/Safari on iOS 14+, Chrome on Android 8+
• Not supported: Internet Explorer

For optimal performance, we recommend using Chrome or Edge with hardware acceleration enabled.

Yes! We offer a free tier that lets you:

• Use up to 10 modules per workspace
• Create and save workspaces
• Basic audio export
• Access to core module library

Premium plans ($19/month) unlock unlimited modules, advanced features, GPU acceleration, multi-device collaboration, and more.

There are several ways to add modules:

• Module Browser: Click the "+" button or press M to open the module browser, then drag modules onto the canvas
• Right-Click Menu: Right-click anywhere on the canvas and select "Add Module"
• AI Assistant: (Premium) Describe what you want and let AI suggest modules
• Keyboard: Press Shift+A for quick add menu

Connecting modules is simple:

• Click on an output port (usually on the right side of a module)
• Drag to an input port on another module
• Release to create the connection
• Click a cable and press Delete to remove it

Tip: Color-coded ports indicate signal type (audio, CV, gate, etc.)

Yes! All your workspaces are automatically saved to the cloud:

• Auto-save: Changes are saved automatically every few seconds
• Manual save: Press Ctrl+S (or Cmd+S on Mac)
• Version history: (Premium) Access previous versions of your workspace
• Export: Download workspace as JSON for backup or sharing

Export your creations in multiple formats:

• Real-time recording: Click the record button to capture live performance
• Offline bounce: (Premium) Render faster than real-time with lossless quality
• Formats: WAV (lossless), MP3 (lossy), OGG (lossy)
• Sample rate: Up to 192kHz for premium users

Common shortcuts:

• M - Open module browser
• Space - Play/Pause
• Ctrl+S - Save workspace
• Ctrl+Z / Ctrl+Y - Undo/Redo
• Ctrl+C / Ctrl+V - Copy/Paste modules
• Delete - Delete selected modules/cables
• Ctrl+A - Select all
• Ctrl+D - Duplicate selected
• F - Fit all modules in view

Minimum:

• Processor: Dual-core 2GHz
• RAM: 4GB
• Browser: Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
• Internet: Required for cloud sync (offline mode available after first load)

Recommended:

• Processor: Quad-core 3GHz+
• RAM: 8GB+
• GPU: Dedicated graphics card for GPU acceleration (Premium)

Yes! Once you've loaded μcor, the app caches locally and works offline. Features available offline:

• Create and edit workspaces
• Use all modules
• Record audio

Features requiring internet:

• Cloud sync across devices
• Downloading new modules
• AI features
• Collaboration features

Latency depends on your browser and audio settings:

• Typical: 10-30ms (acceptable for most use cases)
• Low-latency mode: (Premium) 5-10ms with optimized settings
• Factors: Browser, OS audio driver, buffer size settings

Adjust buffer size in Settings → Audio for latency vs. performance tradeoff.

Yes! μcor supports Web MIDI API for MIDI controller integration:

• Connect any USB MIDI controller
• Map MIDI CC to module parameters
• Use MIDI keyboards for note input
• MIDI clock sync for tempo

Access MIDI settings in Settings → MIDI/Hardware.

Limits depend on your plan:

• Free: Up to 10 modules per workspace
• Premium: Unlimited (limited only by your computer's performance)

Performance with many modules depends on:

• CPU power (most audio processing is CPU-bound)
• Module complexity (some modules are more CPU-intensive)
• GPU acceleration settings (Premium)

Creating an account is quick and easy:

• Click "Sign In" on the homepage
• Choose to sign in with email or OAuth providers (Google, GitHub)
• Complete the verification process
• Start creating immediately!

Account is required for cloud saving and syncing across devices.

We accept all major payment methods through Stripe:

• Credit/Debit cards (Visa, Mastercard, Amex, Discover)
• Apple Pay
• Google Pay

All payments are processed securely by Stripe. We never store your card details.

Yes! Cancel anytime with no penalties:

• Access Account Settings → Subscription
• Click "Cancel Subscription"
• You'll keep premium access until the end of your billing period
• Your workspaces remain accessible (limited to free tier features)

You can reactivate your subscription at any time.

Your data is safe:

• Workspaces: All saved workspaces remain accessible (view-only if exceeding free tier limits)
• Modules: Workspaces with more than 10 modules can't be edited until modules are removed or you upgrade
• Samples: Samples exceeding free tier quota remain but you can't upload new ones
• Re-upgrade: Full access restored immediately upon upgrading again

Yes! We offer special pricing for students and educators:

• Students: 50% off premium plans with valid student ID
• Educators: Free premium access for classroom use
• Institutions: Custom pricing for schools and universities

Contact [email protected] to apply.

The AI Workspace Assistant lets you describe music in plain English and automatically builds a complete patch for you. It uses a 7-step pipeline:

• Analyze: Understands your intent, genre, and mood
• Rhythm: Selects and configures drum modules
• Bass: Adds bass synth with appropriate routing
• Melody: Creates melodic content and voicing
• Effects: Adds reverb, delay, and processing chains
• Verify: Validates all audio connections
• Polish: Fine-tunes parameters for production quality

Access it via the AI panel button in the workstation toolbar.

The AI Audio Generator module lets you create audio from text descriptions. It automatically routes your prompt to the best model:

• MusicGen: For music, songs, melodies, and rhythmic content
• Stable Audio: For sound effects, ambient textures, and noise
• TTS (Coqui): For speech, voice, and narration

Each generation runs on a dedicated GPU. If the GPU is busy with another generation, your request is queued and you'll see your position in the queue with real-time updates.

AI audio generation requires significant GPU resources. To ensure maximum quality, only one generation runs at a time. When you submit a request while the GPU is busy:

• Your request enters the GPU queue
• The progress bar shows "Queued for GPU (position X of Y)"
• When your turn comes, it automatically switches to "Generating audio..."
• No action needed on your part - just wait for it to complete

Queue position updates in real-time. Most generations complete in 30-120 seconds depending on duration and model.

AI generation limits depend on your plan:

• Free: 5 generations per day
• Premium: Unlimited generations

Your remaining quota is shown in the AI Audio Generator module. Rate limits reset daily.

Absolutely! μcor has an open module creation framework:

• Build modules in TypeScript/JavaScript
• Test in real-time within the browser
• Full API documentation available
• Access to debugging and profiling tools
• Publish to the community or premium marketplace

Check out our Developer Documentation to get started.

Coming soon! The premium module marketplace will allow developers to:

• Sell custom modules directly to users
• Set your own pricing
• Earn revenue share (developers keep 70%)
• Reach a global audience of creators
• Receive analytics and feedback

Sign up for the waitlist at [email protected]

Yes! We offer a comprehensive REST API:

• Workspace management (CRUD, templates, sharing)
• Module library access and search
• AI workspace pipeline (plan, init, step)
• AI audio generation (generate, status, queue, download)
• User authentication (OAuth 2.0 via Kinde)
• Multi-device sessions and collaboration

API documentation available at Developer Docs.

Try these solutions:

• Increase buffer size: Settings → Audio → Buffer Size (higher = smoother, more latency)
• Close other tabs: Other browser tabs can consume CPU
• Reduce module count: Disable or remove unused modules
• Update browser: Ensure you're using the latest browser version
• Check CPU usage: Task Manager → High CPU usage indicates performance bottleneck

Troubleshooting steps:

• Hard refresh: Press Ctrl+Shift+R (or Cmd+Shift+R on Mac)
• Clear cache: Browser Settings → Clear browsing data → Cached files
• Check internet: Cloud workspaces require connection to load
• Try another browser: Test if issue is browser-specific
• Contact support: If issue persists, email [email protected] with workspace ID

Check these common issues:

• Browser permissions: Allow audio when prompted
• System volume: Ensure computer volume isn't muted
• Output routing: Check that modules are connected to the master output
• Module state: Verify oscillators/sources are active (not muted)
• Browser audio: Other tabs might have captured audio context

We appreciate bug reports! Please include:

• Description: What happened vs. what you expected
• Steps to reproduce: How we can recreate the issue
• Environment: Browser, OS, μcor version
• Screenshots: If applicable
• Console errors: Open Developer Tools (F12) → Console tab

Submit bugs to [email protected] or our GitHub issues page.