Fidelia — Audiophile Player
Lossless Hi-Res, Any Streamer
Only for Mac
Free · In-App Purchases
Mac
New: multichannel. 5.1 to 9.1.6, per-speaker calibration, 16-channel processing bus. Plus bit-perfect streaming to WiiM, Bluesound, Linn, Naim, Eversolo. One-time unlock.
Fidelia is the audiophile music player for Mac. It plays your music the way it was recorded — no compression, no quality loss, no compromise.
YOUR NETWORK, YOUR LIBRARY
Fidelia speaks Lyrion (Logitech Media Server): your server's library sits in the sidebar beside your Mac's files — one search, one wall, one player. Browsing it is free.
It plays TO your system, too. Any UPnP/DLNA streamer becomes an output — WiiM, Bluesound, Linn, Naim, Eversolo, Denon, HQPlayer — chosen from the same menu as your USB DAC, fed the original bytes, gapless.
And you don't choose between the network and your signal path. Leave bit-perfect off and the whole chain runs first — HeadSpace, dither, resampler, your Audio Unit slots — then streams the result. Most network players hand the file to the box and stop.
YOUR WHOLE RIG, NOT JUST TWO CHANNELS
Fidelia plays 5.1, 7.1 and 7.1.4 — and up to 9.1.6, sixteen channels — reading the layout each file declares instead of guessing from track order.
The Output Dashboard puts the rig on one surface: your speakers drawn where they sit, your interface's outputs beside them, a live meter on every speaker, so a miswired channel is obvious the moment music plays. Identify sweeps the room a speaker at a time; mute, solo and polarity sit on each speaker.
Calibrate by measuring, not arithmetic: give each speaker the distance you measured and the nearer ones are delayed to match. Two subwoofers can differ, because that is the reason to have two. Your rig is remembered per output device.
Audio Unit slots run a bus up to sixteen channels wide — convolution emitting a filtered channel per driver.
THREE MASTERING-GRADE PROCESSORS, BUILT IN
HeadSpace — headphones are unnatural: your left ear never hears the right speaker as it would in a room. Frequency-dependent crossfeed modeled on real head acoustics gives a soundstage like speakers, not two drivers against your ears.
Pro Dither — moving between bit depths decides whether the noise floor vanishes or turns audible. A 9th-order psychoacoustic noise shaper tuned to ISO 226 equal-loudness contours, the approach licensed into Pro Tools and Logic. The noise floor drops below hearing.
Reference Sample Rate Conversion — linear-phase and minimum-phase engines, as found in professional mastering suites, with five quality presets.
BIT-PERFECT & EXCLUSIVE MODE
Source bits go straight to your DAC — no processing, no conversion. Exclusive mode locks the device to Fidelia, bypassing the OS mixer entirely, the same behaviour as dedicated audiophile hardware.
NATIVE DSD
DSF and DFF, DSD64 through DSD512, decoded in real time, gaplessly, no conversion. For a DAC that decodes DSD itself, bit-perfect DoP sends the stream through untouched — enabled per device and confirmed with a test tone.
THREE AUDIO UNIT SLOTS
Load any Audio Unit — EQ, reverb, compression, spatial. Open plugin GUIs without leaving Fidelia; every setting returns as you left it.
BUILT FOR LARGE LIBRARIES
Album art fills itself in, exact matches only — a wrong cover is worse than a missing one. Every playlist remembers its own sort, and duplicates resolve to the best copy you own.
ALSO
• Internet radio — thousands of stations or any URL, quality graded honestly
• Gapless rebuilt from the ground up — no gaps or clicks, even across sample rates and DSD
• Conversion to AIFF, WAV, FLAC, Apple Lossless, AAC, CAF
• Monkey's Audio (APE) import, Music.app library sync
• Scalable player — 5 sizes plus a scale control to 200%
FORMATS
WAV, AIFF, FLAC, Apple Lossless, CAF, MP3, AAC, OGG Vorbis, Opus, AC3, Wave64, Sound Designer II, AU/SND. DSD: DSF and DFF, DSD64–DSD512, native, bit-perfect DoP.
PRICING — NO SUBSCRIPTION
Free to try for 14 days, the full app, no limits. Then a one-time unlock. Network playback — Lyrion libraries and UPnP streamers — is a separate one-time unlock; browsing your server is always free, so you see your library working before you decide.
Fidelia Remote, the iOS companion, is free.
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Music that keeps playing.
A DAC asked to change tracks while it is still letting go of the last one can stumble for a fraction of a second. Fidelia used to take that as a verdict on the track and skip it — then skip the next one for the same reason. It now asks the device again before giving up, so a moment's hesitation costs you nothing.
Streaming plays through, not just starts.
Sending a track to a streamer, Fidelia says up front how many bytes are coming. If reading the file hesitated part way — a drive pausing for breath — the transfer used to stop there, quietly, and your streamer sat waiting for a tail that never arrived: a few seconds of music, then silence. Fidelia now asks the file again, and says so plainly if it ever cannot.
Many M4A files — most of what iTunes ripped or sold for years — keep their index at the end of the file, which a streamer must fetch before it can decode a note. Fidelia sends those files with the index first, byte for byte the same audio, so every streamer reads them straight through like a FLAC.
On a Mac with both Wi-Fi and Ethernet connected, Fidelia asks macOS which connection it will actually use, rather than choosing by name. Album art and processed streams travel the same way as the music.
A big library stays quick to move around in.
Your own tracks are on screen within seconds of launch, however big the rest is — anything mirrored from Music.app or a server fills in behind them. Fidelia no longer re-reads your whole Music library every quarter of an hour, and never starts that work while music is playing.
Choosing a playlist, or typing in the search field, no longer stops to rebuild work it already had. On a library of 185,000 tracks, typing five characters into search used to hold the window for seconds; it is now immediate. Fidelia Remote asking for your playlists no longer costs the Mac the same pause.
Renamed a folder? Your tracks find themselves.
Correct an album's folder name in a tag editor and those tracks would grey out, even though they still played. Fidelia now recognises the move — the album's folder, or a folder above it — and the whole folder comes back at once, wherever the music lives.
Your whole rig, not just two channels.
Fidelia plays 5.1, 7.1 and 7.1.4 — and up to 9.1.6, sixteen channels. It reads the channel layout the file declares rather than guessing from channel order, so a 3.1 record is not played as quad and an LFE lands where it belongs. When a file declares a layout you know is wrong, you can correct it once, against that mask, and every file carrying it follows. The routing pane says which mode it is in: Automatic, following your speakers, or Custom, the matrix you built.
The Output Dashboard is the rig on one surface: your speakers on the left, drawn where they sit, your interface's outputs on the right. Every speaker carries its own meter, so a mis-wired rig is obvious the moment music plays.
Calibrate by measuring, not by arithmetic. Each speaker takes a distance you measured with a tape, a level trim and a polarity flip; the farthest becomes the reference and the nearer ones are delayed to match. A rig is remembered per output device.
Audio Unit slots run a bus up to sixteen channels across, so a convolver can emit a filtered channel per driver. A 5.1 track sent to a network player is folded down properly rather than arriving as its front two channels, so the centre — and the lead vocal that lives there — survives the trip.
Elsewhere.
Appearance, in General, follows your Mac's Light or Dark setting, or holds one of them whatever the Mac is doing.
Playlists show the order they will play in, and let you choose it. Your Music playlists arrive in the order you arranged them.
Longtime Fidelia 1 owner? Fidelia 2 is an all-new app — a free download with a 14-day trial and a one-time unlock, no subscription, so a Fidelia 1 purchase won't restore into it. Thank you for years of listening.
The developer, Audiofile Engineering, LLC, 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
- Provider
- Audiofile Engineering, LLC
- Size
- 15.1 MB
- Category
- Music
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Fidelia — Network & Server Rp 799ribu
- Fidelia — Full License Rp 1,699juta
- Copyright
- © 2011-2026 Audiofile Engineering, LLC
