---
title: "Audio spectrum analyzer EQ Rta — App Overview"
url: https://marlvel.ai/apps/com-lspapps-spectrum
category: Productivity
developer: Marina Polyanskaya
platforms: ios, android
rating: 4.5 (245 ratings)
pricing: paid
report_level: overview
generated: 2026-04-19
last_verified: "2026-04-19T02:45:19.660Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** While the app offers robust technical features, recent user feedback indicates significant compatibility issues and performance instability on newer iOS versions.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Productivity |
| Rating | 4.5 ★ (245) |
| Pricing | paid |
| Platforms | iOS, Android |
| Latest Version (iOS) | 2.2.1 |
| Latest Version (Android) | 1.5 |
| Developer | Marina Polyanskaya |

<!-- SECTION: Summary -->
## What is Audio spectrum analyzer EQ Rta?

Audio spectrum analyzer EQ Rta is a professional-grade tool designed for real-time sound analysis using FFT technology. It enables users to monitor sound pressure levels (SPL) and frequency spectrums across three separate channels with customizable input/output options.

<!-- SECTION: Key Features -->
## Key Features

- **Real-Time RTA**: Provides high-refresh-rate frequency spectrum analysis using FFT with an adjustable amplitude scale up to 150 decibels.
- **Multi-Channel Comparison**: Allows users to capture and compare noise levels and frequency charts across three distinct audio channels.
- **Sound Frequency Meter**: Displays real-time Max, Min, and Average decibel levels alongside a peak hold function and flat reference line.
- **Calibration and I/O**: Supports internal, AUX, or Bluetooth audio sources with the ability to calibrate each frequency band individually.

<!-- SECTION: Target Audience -->
## Who is it for?

Audio engineers, sound technicians, and hobbyists requiring real-time acoustic measurement and frequency analysis.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/audio-spectrum-analyzer-eq-rta/id1122398778?uo=2)
- [Google Play](https://play.google.com/store/apps/details?id=audio.sound.spectrum.analyzer.rta&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/apps/com-lspapps-spectrum)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/com-lspapps-spectrum).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*