# Live Audio Multi-Tool — RTA, SPL, delay & sub tools

> Offline audio analysis and calculation tools for live sound professionals. (iPhone/iPad app by Bryan Hargrave.)

- Source: https://appshunter.io/ios/app/live-audio-multi-tool/id6809812526 (this page in markdown: same URL + `.md`)
- Developer: [Bryan Hargrave](https://appshunter.io/developer/6806035529)
- Category: Utilities, Music
- Price: Free
- Rating: 5.00/5 from 4 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 2 MB
- Languages: American English
- Released: 2026-09-22
- Data updated: 2026-10-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/live-audio-multi-tool/id6809812526/reviews.md

## What is Live Audio Multi?

Live Audio Multi-Tool (LAM-T) is a fast, offline toolbox for live sound engineers, system techs, AV installers, and musicians. Everything you reach for at a gig — an analyzer, an SPL meter, a delay calculator, sub-array alignment, a signal generator — in one clean app. No account, no ads, no tracking.

REAL-TIME ANALYZER (RTA)
• Fractional-octave RTA with a live peak readout
• A / C / Z weighting
• Spectrogram view, freeze, peak hold, and capture/compare
• Adjustable Y-offset for quick reference matching

SPL METER + Leq
• dB(A), dB(C), dB(Z) with peak hold
• Running Leq over 1, 15, or 60 minutes
• Per-device calibration offset — match it to a real meter once and it sticks

DELAY CALCULATOR
• Speed-of-sound delay from real temperature and humidity (auto-filled from your location)
• Connect a Bluetooth laser rangefinder to drop a measured distance straight in — verified with the Bosch GLM 165-27C (GLM 120 C family); Leica DISTO (and Stabila LD), older Bosch GLM, Stanley TLM99s / DeWalt DW099S and older Mileseey on a best-effort basis; any other meter can send a one-tap diagnostic report so support can be added
• Feet or metres

SUB-ARRAY DESIGNER
• Broadside and end-fire arrays
• Cardioid tops (castellated or all-subs)
• Per-sub delay times computed for your spacing and coverage

SIGNAL GENERATOR
• Sine (20 Hz–20 kHz, log sweep), pink noise, and a polarity-check pulse
• Polarity reader — check a speaker's polarity through the mic

UNIT CONVERTERS
• Temperature, distance, and pressure
• Reads your device's barometer for true local air pressure

Built for the real world: it works offline, launches instantly, and stays out of your way.

Informational only, no warranty. Measurements and conversions are estimates — verify anything critical with calibrated instruments.

## Key features

- Fractional-octave RTA with live peak readout
- SPL meter with dB(A), dB(C), dB(Z) and Leq
- Delay calculator with temperature/humidity compensation
- Sub-array design for broadside and end-fire arrays
- Signal generator with sine sweep and noise
- Unit converters for temperature, distance, and pressure

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/live-audio-multi-tool/id6809812526/reviews.md

### 5/5 — Efficient!

*2026-09-29*

What a useful and convenient audio app! This guy is doing very cool stuff.

### 5/5 — All in one place

*2026-09-26*

Genius tool from a brilliant engineer and developer. Thanks, Bryan!

### 5/5 — Fantastic

*2026-09-22*

Everything you need in once place! And Bryan is a fantastic and accomplished Audio Engineer, so you can trust this is what you need in your back pocket during any gig!

## Frequently asked questions about Live Audio Multi

### What is Live Audio Multi-Tool?

Live Audio Multi-Tool is an offline application designed for live sound professionals. It offers a suite of tools including a Real-Time Analyzer (RTA), SPL meter, delay calculator, sub-array designer, and signal generator.

### Does Live Audio Multi-Tool have ads?

No, Live Audio Multi-Tool is completely ad-free. The developers have stated there are no ads, no accounts, and no tracking within the application.

### What devices is Live Audio Multi-Tool compatible with?

Live Audio Multi-Tool is currently supported on iPhone and iPod devices. It is rated for ages 4 and up.

### How often is Live Audio Multi-Tool updated?

The latest version of Live Audio Multi-Tool is 1.4, and it was last updated on September 22, 2026. This indicates a recent update, suggesting ongoing development and support.

### Can Live Audio Multi-Tool connect to external devices?

Yes, the delay calculator can connect to Bluetooth laser rangefinders from specific brands like Bosch and Leica to directly input measured distances. It also supports a diagnostic report for other meters to potentially add support.

### Is Live Audio Multi-Tool accurate for critical measurements?

The app is intended for informational purposes only and measurements are estimates. It is recommended to verify anything critical with calibrated instruments, as the app does not provide a warranty.

### What are the key analysis features in Live Audio Multi-Tool?

Key analysis features include a fractional-octave RTA with live peak readout, spectrogram view, peak hold, and capture/compare functions. The SPL meter offers dB(A), dB(C), dB(Z) readings with peak hold and running Leq over various time intervals.

### What is the user sentiment for Live Audio Multi-Tool?

Based on the provided data, Live Audio Multi-Tool has a rating of 5.0 stars from 1 rating. This indicates a highly positive initial user reception.

## Version history (last 2 releases)

### 1.5 — 2026-09-24

• Universal iPad support — the app now fills the screen and scales properly on iPad, in both portrait and landscape.
• The screen now stays awake while the app is open, so the analyzer and SPL meter keep running during a show.
• Smoother tab swiping and cleaner handling when you rotate the iPad, plus minor fixes.

### 1.4 — 2026-09-22

No release notes.

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## More apps by Bryan Hargrave

- [Virgil: Remote Controller](https://appshunter.io/ios/app/virgil-remote-controller/id6816814857)

All apps by Bryan Hargrave: https://appshunter.io/developer/6806035529

## Related topics

[rta audio tool](https://appshunter.io/ios/topics/rta-audio-tool) · [rta tool](https://appshunter.io/ios/topics/rta-tool)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-10.*