DSD Mastering Viewer
How your file was mastered?
Free · In‑App Purchases
The rate printed on a hi-res file tells you nothing about where the music came from.
The shape of its ultrasonic noise tells you a great deal.
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Siarhei Hladkou, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Siarhei Hladkou
- Size
- 3.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- In-App Purchases
Yes
- 3-Day Trial $0.00
- DSD Viewer $99.99
- Converter $99.99
- DSD Viewer+Converter $199.99
- Copyright
- © 2026 Siarhei Hladkou