Application: Sound HUD — Decibel Meter & Acoustic Telemetry

Developer: SVM Dev Studio (Sebastian Villalobos)

Last Updated: September 2026

🛠️ App Support & FAQ

What is Sound HUD?

Sound HUD is a real-time acoustic telemetry system and decibel meter (dB SPL) designed with a tactical aviation-inspired head-up display. It provides real-time sound level measurements, frequency spectrum analysis, and noise dose tracking.

Frequently Asked Questions (FAQ)

How does microphone calibration work? You can calibrate the microphone offset ($\pm 10\text{ dB}$) in steps of $0.5\text{ dB}$ inside the Settings panel (⚙️) to match dedicated reference sound level meters.
What weighting curves are supported? Sound HUD supports A-Weighting (human ear response), C-Weighting (industrial/peak response), and Z-Weighting (flat linear response).
How do I restore my Sound HUD PRO purchase? Open Settings or the PRO upgrade screen and tap "Restore Purchases". Your Apple ID will automatically sync and restore your lifetime PRO access.
Need help or want to report an issue? Send an email to our support team at [email protected] and we will assist you promptly.

🔒 Privacy Policy

1. Overview

SVM Dev Studio values and respects your privacy. This Privacy Policy outlines how Sound HUD handles information across iOS, iPadOS, and macOS.

2. Microphone Access & Audio Processing

100% On-Device Processing: Sound HUD requires access to your device's microphone solely to compute real-time decibel levels (dB SPL), average continuous levels (LAeq), and frequency band analysis.
No Recording, No Storage: Audio buffers are processed instantaneously in volatile device memory. The application never records, stores, transmits, encodes, or uploads any audio signals to external servers or third parties.