Three simple steps to professional venue sound optimization
Open the CrowdTune desktop app (Electron), click "Create Session", and enter your venue name. The system automatically generates a unique QR code and session ID. Download the calibration WAV file and play it through your sound system.
Display the QR code on screen or project it for your audience. Each person opens the CrowdTune app on their iPhone, scans the QR code, and grants microphone permission. When you play the calibration signal through your sound system, everyone taps "Record" simultaneously. The app captures 75 seconds of audio and automatically uploads to the cloud.
Watch live upload counts on your dashboard. Once processing completes, click "View Results" to see detailed heatmaps showing coverage uniformity, spectral analysis, problem zones, and auto-generated EQ recommendations. Export results as CSV or JSON for further analysis.
Built on Cloudflare's global edge network for maximum reliability and zero infrastructure management.
Cloudflare Workers handle all API requests with automatic scaling. No servers to manage.
Audio files stored in Cloudflare R2 with 24-hour auto-delete to minimize costs.
Session state managed via Durable Objects for real-time coordination and WebSocket support.
Deployed to 300+ cities worldwide for fast uploads regardless of location.
Pure HTTPS uploads work through any firewall, NAT, or AP isolation. No mDNS/Bonjour required.
Advanced audio analysis using NumPy, SciPy, and librosa for professional-grade results.
Visual representation of sound level distribution across your venue showing hot spots and dead zones.
Third-octave frequency response analysis across the entire audible spectrum (20Hz-20kHz).
System automatically suggests EQ adjustments based on measured frequency response.
Estimated reverberation time for acoustic room analysis.
Uniformity scores, percentile statistics, and spatial analysis of your sound coverage.
Download results as CSV or JSON for offline analysis and archiving.