# OmniRTA — Real-Time Audio Analyzer

> Real-Time Audio Analyzer (iPhone/iPad app by Olivier ADAM.)

- Source: https://appshunter.io/ios/app/omnirta/id6804323641 (this page in markdown: same URL + `.md`)
- Developer: [Olivier ADAM](https://appshunter.io/developer/6804323644)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.6 · 5 MB
- Languages: American English
- Released: 2026-09-08
- Data updated: 2026-09-20
- User reviews in markdown: https://appshunter.io/ios/app/omnirta/id6804323641/reviews.md

## What is OmniRTA?

OmniRTA is an advanced real-time acoustic analyzer engineered for audio professionals, sound design students, musicians, and acousticians. Combining high-performance DSP with a clear, pedagogical interface, OmniRTA bridges the gap between signal theory and practical sound analysis.

A Unique Educational & Comparative Platform:
Unlike traditional RTAs limited to a single processing method, OmniRTA integrates multiple frequency analysis engines, allowing you to compare signal behaviors side by side and understand how different algorithms handle transient vs. steady-state audio:

Standard Direct FFT:
High-speed frequency decomposition optimized for real-time responsiveness, wideband signals, and general monitoring.

Constant-Q / Fractional Octave Filterbank:
Acoustically relevant octave and fractional-octave banding (1/1, 1/3, 1/6, 1/12, 1/24 octave) that matches human auditory perception across the audible spectrum.

Proprietary Low-Frequency Transient Engine (Exclusive):
Traditional FFT algorithms suffer from a strict time-frequency uncertainty trade-off, either sacrificing time accuracy or frequency resolution in the low end. OmniRTA introduces an innovative analysis engine specifically designed for low-frequency transient and percussive content.
Accurately track fast double-kick drums, heavy techno sub-bass patterns, and low-end impact dynamics with surgical frequency definition and zero temporal smearing.

Key Features:
• Real-time multi-algorithm spectrum visualization.
• Standard acoustic weightings: A, C, and Z (Flat).
• Response ballistics: Fast, Slow, Peak Hold, and Infinite Peak.
• Native high-performance DSP core written in Rust for minimal latency and optimal battery efficiency.
• Seamless cross-platform experience across iOS, iPadOS, and macOS.

Free vs Pro Version:
OmniRTA offers essential spectrum analysis features for everyday work and learning. Upgrade to OmniRTA Pro via a one-time in-app purchase to unlock advanced fractional octave bands, deep algorithm customization, and extended logging tools.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| OmniRTA Pro Unlock | $14.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-09-12

No release notes.

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## More apps by Olivier ADAM

- [CipollaMatrix - Psychologie](https://appshunter.io/ios/app/cipollamatrix-psychologie/id6809994424)

All apps by Olivier ADAM: https://appshunter.io/developer/6804323644

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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 2026-09-20.*