VinylRest ABC Player
Menu
Sample-synchronized comparison for Mac

Hear exactly what changed.

Choose the original as A and the restored file as B. VinylRest ABC Player keeps both files on one exact sample timeline, then lets you switch instantly between Source, Cleaned and the live Difference.

Download on the App Store Read the user manual

Free on the Mac App Store.

VinylRest ABC Player 1.0 build 3 · Universal 2 Mac application · macOS 13 or later · Mono and stereo

VinylRest ABC Player playing the live C Difference between loaded Reference and Restored files on one synchronized timeline
One sample timelineA and B start, pause, seek and resume together.
Instant A/B/C switchingChanging the monitor never restarts playback.
Live A − B differenceC is calculated during playback, not stored as a third file.
Strict by designNo hidden resampling, trimming, alignment or channel conversion.
Built for critical listening

A focused comparison tool with nothing hidden

ABC Player keeps the transport simple and makes the signal relationship explicit, so every judgment is based on the files you actually selected.

Shared transport

Two native audio players are scheduled from the same host time and exact frame offset. Play, pause, stop and seek apply to both.

Live difference

Difference monitoring mixes A at +1 and B at −1 in real time. No temporary difference file or stale cache is involved.

Switch without interruption

A, B and C change only the monitoring gains. Playback stays on the same frame instead of being restarted or rescheduled.

Exact compatibility

Sample rate, channel count and frame count must match. An incompatible pair is rejected before comparison begins.

Lossless sources

Compare WAV, AIFF, FLAC or lossless ALAC in an .m4a container, in mono or stereo.

Comfortable appearance

Use the dark interface, switch to light, or follow the current macOS appearance automatically.

VinylRest ABC Player with matching Reference and Restored files loaded and A Source selected
The listening path

Three views of one moment

Load A as the reference and B as the processed version. Once the pair passes the compatibility check, all three monitor choices follow the same playhead.

  • A Source plays the original file.
  • B Cleaned plays the restored or processed file.
  • C Difference plays everything present in A that is absent from B.
A · SourceOriginal reference file
B · CleanedProcessed comparison file
Shared timelineInstant A, B or live C monitoring
C = A − B
A difference you can trust

No automatic fixing behind the comparison

If the files do not have the same duration, format timeline or channel layout, ABC Player tells you instead of silently changing the evidence.

✓Matching files remain sample-aligned through playback and seeking.
✓Identical files produce silence in C Difference.
✓A difference that contains music is a useful reason to inspect the processing.
The application

One clear window from file selection to comparison

The interface shows the selected files, their exact format, the active monitor and the shared playback position at a glance.

VinylRest ABC Player empty state ready to choose A Source and B Cleaned files
Start with an empty, explicit A/B workspace.
Matching Reference and Restored files loaded in VinylRest ABC Player
Both cards confirm the sample rate, channels and duration before playback.
C Difference selected during synchronized playback in VinylRest ABC Player
Switch to C during playback to isolate the live A minus B difference.
VinylRest ABC Player Appearance settings with Dark, Light and Automatic options
Choose Dark, Light or Automatic appearance.
Compatibility

Native, lossless and exact

ABC Player is intentionally strict because a meaningful difference requires two files that describe the same sample timeline.

macOS 13 or later
Universal 2: Apple silicon and Intel
WAV, AIFF/AIF, FLAC and lossless ALAC in .m4a
Mono or stereo
Exact sample-rate, channel-count and frame-count match
Current product specification: 1.0, build 3
Free on the Mac App Store
Documentation

Make the first comparison count

The English manual covers compatible files, the complete interface, synchronized A/B/C monitoring, shortcuts, appearance and troubleshooting.

Download on the App StoreRead the user manualFree on the Mac App Store.