# DSD Mastering Viewer — How your file was mastered?

> How your file was mastered? (iPhone/iPad app by Siarhei Hladkou.)

- Source: https://appshunter.io/ios/app/dsd-mastering-viewer/id6806110367 (this page in markdown: same URL + `.md`)
- Developer: [Siarhei Hladkou](https://appshunter.io/developer/6782669152)
- Category: Utilities, Music
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 17.0 · 3 MB
- Languages: American English
- Released: 2026-09-14
- Data updated: 2026-09-18
- User reviews in markdown: https://appshunter.io/ios/app/dsd-mastering-viewer/id6806110367/reviews.md

## What is DSD Mastering Viewer?

DSD Mastering Viewer reads a DSD or high-resolution PCM file and works out, from
the spectrum alone, what production chain it most likely came from.

A file labelled DSD256 may be a genuine high-rate master, or a DSD64 SACD transfer
in a larger container carrying an older modulator's noise as content. A 192 kHz
download may be a real 192 kHz capture, or a CD upsampled into an empty band. The
container never says which. The ultrasonic region does.

WHAT IT MEASURES
• The wideband spectrum out to 176 kHz, well past the limit of hearing
• How the level above the audio band is shaped, and where it starts to rise
• Left/right coherence — whether ultrasonic energy is independent between
  channels, which is what decides whether it can read as width and air
• A band table from 15 kHz upward, in dB relative to the music

WHAT IT TELLS YOU
A plain-language verdict naming the most likely chain, with a confidence
qualifier and the evidence behind it — DSD64 heritage, a freshly remodulated
PCM or DXD master, a native high-rate capture, an analogue or heavily processed
transfer, an upsample from a lower rate, or a lossy-encoded source.

A recording-chain grade out of ten scores what the chain delivered: real
bandwidth, an honest container, and a clean region above the music.

CONVERSION
Convert between DSD and PCM in either direction — DSD64 through DSD2048, PCM from
44.1 to 384 kHz in 16-bit, 24-bit or 32-bit float — with an optional linear-phase
filter that removes inherited ultrasonic noise while leaving everything audible
untouched. The chart draws the predicted result before you commit to it.

HONEST BY DESIGN
A file that cannot carry 50 kHz is never reported as having nothing there; it is
reported as unobserved. Confidence is capped when there is less evidence to go on.
The verdict always hedges, because a spectrum constrains a file's history without
proving it. And the grade is explicitly a judgement of the production chain, not
of how the record sounds — no spectrum can tell you that.

Reads DSF, WAV, AIFF, FLAC, ALAC and CAF. Nothing is uploaded; there is no
networking code in the app at all.

FREE FOR THREE DAYS
Everything is open for three days. After that the Viewer and the Converter are
separate one-time purchases — no subscription, nothing renews, and either one
covers all your Macs, iPhones and iPads.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 3-Day Trial | Free | one-time |
| DSD Viewer+Converter | $199.99 | one-time |
| Converter | $99.99 | one-time |
| DSD Viewer | $99.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-09-15

No release notes.

## More apps by Siarhei Hladkou

- [CreamAudio Analyzer](https://appshunter.io/ios/app/creamaudio-analyzer/id6782669150)
- [CreamAudio Recorder](https://appshunter.io/ios/app/creamaudio-recorder/id6791345053)

All apps by Siarhei Hladkou: https://appshunter.io/developer/6782669152

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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 2026-09-18.*