# JAX SPECTRO SERIES : Isolate — Tonal Band FFT Processor

> Real-time spectral processor for isolating musical semitones. (iPhone/iPad app by Jens Guell.)

- Source: https://appshunter.io/ios/app/jax-spectro-series-isolate/id1529797216 (this page in markdown: same URL + `.md`)
- Developer: [Jens Guell](https://appshunter.io/developer/1195004865)
- Category: Music, Utilities, Music
- Price: $9.99 (on sale, was $14.99)
- Rating: 4.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 29 MB
- Languages: English
- Released: 2024-04-01
- Data updated: 2026-06-22
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/jax-spectro-series-isolate/id1529797216/reviews.md

## What is JAX SPECTRO SERIES?

Note: AudioUnits (AUv3) require a supporting host application to perform.

JAX SPECTRO SERIES AudioUnits (AUv3) are special spectral processors, which divide the audio stream in 128 frequency bands. These bands are chromatically mapped and visualized consequently in the scale of musical semitones across the entire MIDI notes range. These tools are useful for musical analysis and processing. JAX Isolate is able to filter the audio stream in realtime based on specialized FFT algorithms with ultra sharp slope up to a single isolated semitone. Tonal ranges can be filtered out of the audio stream (bandstop) or isolated (bandpass) this way. The tools come with a graphical 128 sliders frequency control and a precise tonal range selector.

This build is truly 'universal', meaning, unit is available for:

- MacOS (Apple Silicon)
- iOS (iPhone)
- iPadOS (iPads)
- visionOS (Apple Vision Pro)

Please note, that the MacOS Catalyst (Intel) versions may be sold separately, as the AppStore does not allow to bundle none-silicon apps.

## Key features

- 128 frequency band division
- Chromatic mapping of bands
- Real-time audio filtering
- Isolated semitone selection
- Bandstop and bandpass filtering
- Graphical frequency control

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/jax-spectro-series-isolate/id1529797216/reviews.md

### 3/5 — Great App but needs to work in LogicPro

*2024-04-09*

Really good app. Works great in Cubasis but in LogicPro it makes a annoying glitching sound. I tried changing the project’s rate from 44.1 to 96k the sound got quieter but did not go away.

Hopefully the next update will fix this issue.

## Frequently asked questions about JAX SPECTRO SERIES

### What is JAX Isolate?

JAX Isolate is a spectral processor that divides audio into 128 frequency bands. It allows users to filter and isolate specific musical semitones in real-time for detailed audio analysis and manipulation.

### How much does JAX Isolate cost?

JAX Isolate is a paid application, priced at $14.99. This one-time purchase grants you access to all its features.

### What devices is JAX Isolate available on?

JAX Isolate is a universal app, available for iPhone, iPad, and Apple Vision Pro. It is also available for MacOS (Apple Silicon).

### Does JAX Isolate have ads?

No, JAX Isolate does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

### How often is JAX Isolate updated?

The latest version, 1.82, was released on April 4, 2024, indicating recent development activity. Updates typically focus on improving performance and compatibility.

### What is the age rating for JAX Isolate?

JAX Isolate has an age rating of 4+, making it suitable for a wide range of users interested in audio processing.

### What are AudioUnits (AUv3)?

AudioUnits (AUv3) are a type of audio plugin technology for Apple devices. JAX Isolate requires a supporting host application to function as an AUv3 unit.

### What kind of musical analysis can JAX Isolate perform?

JAX Isolate can analyze audio by dividing it into 128 frequency bands mapped to musical semitones. This allows for precise identification and manipulation of specific tonal ranges within a piece of music.

## Version history (last 2 releases)

### 1.82 — 2024-04-04

- we applied some internal changes to the meta data

### 1.8 — 2024-04-02

No release notes.

## Apps similar to JAX SPECTRO SERIES

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Dub Filter - High Pass](https://appshunter.io/ios/app/dub-filter-high-pass/id6478895441) | 5.0 (6) | $14.99 | Music |
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## More apps by Jens Guell

- [GM MIDI Player](https://appshunter.io/ios/app/gm-midi-player/id1445780869)
- [MIDI SWEET : Clock Sync (AU)](https://appshunter.io/ios/app/midi-sweet-clock-sync-au/id1454284852)
- [JAF Model One](https://appshunter.io/ios/app/jaf-model-one/id1472652593)
- [JAF Collection](https://appshunter.io/ios/app/jaf-collection/id1472896422)
- [JAX Stereo Tool (AU)](https://appshunter.io/ios/app/jax-stereo-tool-au/id1473390302)
- [JAX !Make Louder (Audio Unit)](https://appshunter.io/ios/app/jax-make-louder-audio-unit/id1474614677)

All apps by Jens Guell: https://appshunter.io/developer/1195004865

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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 2026-06-22.*