# M/S Proc - Mid/Side Level & EQ

> Audio tool for Mid/Side level and EQ adjustments, compatible with other apps. (iPhone/iPad app by ART Teknika Inc..)

- Source: https://appshunter.io/ios/app/ms-proc-midside-level-and-eq/id1062761979 (this page in markdown: same URL + `.md`)
- Developer: [ART Teknika Inc.](https://appshunter.io/developer/405894827)
- Category: Music
- Price: $4.99
- Rating: 4.00/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 7 MB
- Languages: English, Japanese
- Released: 2016-05-31
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ms-proc-midside-level-and-eq/id1062761979/reviews.md

## What is M/S Proc?

M/S Proc is a tool for M/S Processing that enables Mid/Side level adjustments and EQ.

***What is M/S Processing?***
While standard audio processing is done through the Left and Right(L、R) channels, M/S processing divides elements into those at the center(Mid) and those on the left or right(Side). For example, it allows you to adjust the effect of the centrally located vocals or make nuanced changes to the width of the mix.
In addition, tracks with sound pressure levels raised to the maximum in stereo processing can often be found to have additional headroom in the Sides when separated into M/S elements. This means you can increase the sound pressure just by enhancing the Sides.
M/S Proc allows individual level adjustment and EQ processing for Mid and Side channels.

***Main features***
+ Mid/Side level adjustment.
+ Mid/Side EQ control with three bands (High, Mid, Low). The Mid is a parametric equalizer.
+ In addition to standalone usage, compatible with Audiobus and Inter-App Audio. Can be combined with other apps.
+ Can adjust sounds brought in from external devices and apps. Also works with WAV and AIFF formats.
If applying to files, you can export your processed tracks as a WAV file.
Exported files can be exported to other apps using the "Open In" function.
+ Also lets you import files from other apps ("Open In" function)
+ You can also import tracks from your Music Library.
+ Presets allow you to save your parameter settings in the file.
+ A universal app that can be used with both iPhone/iPad.

***Other uses***
Although M/S processing is most often used for mastering, in principle by lowering the Mid you can apply a "center cancel." In this way you can prepare tracks for karaoke or "learning by ear."
We also recommend sending your file to mimiCopy, our "learning by ear" music player app.

## Key features

- Mid/Side level adjustment
- Mid/Side EQ control (3 bands)
- Parametric Mid EQ
- Audiobus and Inter-App Audio compatible
- External device and app audio input
- WAV/AIFF file processing and export
- Music Library import
- Saveable presets

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/ms-proc-midside-level-and-eq/id1062761979/reviews.md

### 1/5 — This app DOES NOT WORK!!!

*2016-09-22, version 1.0.0*

THIS APP DOES NOT WORK!!!! SAVE YOUR MONEY!!!!

### 5/5 — First Rate App, First Rate Service!

*2016-06-06, version 1.0.0*

This app should be a welcome addition to any mixing/mastering workflow. The level of specific detail the separate EQs offer for M/S processing is just awesome.

Also, the Dev is super-responsive. I reported a problem and they resolved it within 24 hours. Top notch! Get it while it's on sale, although it's easily worth full price :)

## Frequently asked questions about M/S Proc

### What is M/S Proc?

M/S Proc is a music production tool that allows for individual level and EQ adjustments to the Mid (center) and Side (stereo width) channels of an audio track. It helps users fine-tune their mixes and masters.

### How much does M/S Proc cost?

M/S Proc is a paid application, priced at $4.99. This one-time purchase grants access to all its features.

### What devices does M/S Proc support?

M/S Proc is a universal app, meaning it is compatible with both iPhone and iPad devices. It also supports iPods.

### Can M/S Proc be used with other music apps?

Yes, M/S Proc is compatible with Audiobus and Inter-App Audio, allowing it to be seamlessly integrated with other music creation applications on your device.

### Can I export processed audio from M/S Proc?

Yes, you can export your processed audio tracks as WAV files. These exported files can then be shared to other apps using the 'Open In' function.

### Does M/S Proc have ads?

Based on the provided information, M/S Proc does not appear to have advertisements. It is a paid application.

### What is the age rating for M/S Proc?

M/S Proc has an age rating of 4+. This indicates it is suitable for users of all ages.

### Can M/S Proc be used to create karaoke tracks?

Yes, by lowering the Mid channel, M/S Proc can effectively apply a 'center cancel' effect, which is useful for preparing tracks for karaoke or 'learning by ear'.

## Version history (last 1 release)

### 1.0.1 — 2017-09-27

This app has been updated by Apple to display the Apple Watch app icon.

How to handle Open In (Import from other applications) has been changed.
After this version, files will be imported into a folder named Migration.
If you placed a file in the Inbox folder in the previous version, the file will be moved automatically when updating.
In addition, bugs related to import has also been fixed.

When copying files to mimiCopy on file sharing on Windows, it was fixed that some files could not be read.
Problems may still occur if you use some letters for file names. In that case please change the file name.

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## More apps by ART Teknika Inc.

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All apps by ART Teknika Inc.: https://appshunter.io/developer/405894827

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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 2026-06-10.*