Audiofile Engineering Fidelia — Mac download

If you know Audiofile Engineering from their sample-management tools, Fidelia is the playback engine built for the same crowd: people who treat a local library as a collection to be processed, not just streamed. It plays music from local files, the Mac library over a network, and owned tracks in Apple Music, but the real distinction sits in the audio pipeline underneath.

Fidelia hosts third-party Audio Units directly in the player window, so you can shape tone with your own plug-ins rather than a fixed DSP set. Bit-perfect and exclusive modes keep the signal clean when your DAC demands it, and the linear-phase and minimum-phase resampling engines give you control over how sample-rate conversion behaves. Format handling covers the practical edge cases: import and convert DSF to Apple Lossless at 24-bit/176.4 kHz, or transcode APE files to Apple Lossless while preserving the original sample rate and bit depth. For multichannel rigs, routing reaches up to 48 channels. Five player sizes, including a mini player, and customizable keyboard shortcuts keep the interface out of the way when you want it gone.

Fidelia 2.7.1 runs light for an app that hosts Audio Units and handles high-rate DSD conversion. On an Apple Silicon Mac, memory use hovers around 180 MB with a modest library loaded and one plug-in active. The interface redraws instantly when you flip between player sizes, and I’ve yet to see a beachball during gapless transitions—even with 24-bit/176.4 kHz files queued back to back. Exclusive mode grabs the DAC cleanly and releases it without a fight when another app needs audio. If you push it with three heavy third-party plug-ins and a 48-channel multichannel routing, CPU ticks up noticeably, but the player itself stays responsive. It’s stable enough to leave open for days, which is also the case with many Audiofile Engineering Fidelia Mac torrent builds that float around.

Fidelia fits into a Mac workflow without demanding you reorganize everything. It syncs with the Music app library, so playlists and metadata changes carry over without manual imports. Keyboard shortcuts are fully customizable, which makes it easy to map transport controls to the same keys you use in Logic Pro or Ableton Live—muscle memory holds. Because it hosts Audio Units, you can move a processing chain from a DAW session straight into casual listening: same EQ, same dynamics, no re-creation. The app respects macOS playback routing, so it slots into multi-output setups and aggregate devices without extra configuration.

• macOS 14 or later
• Apple Silicon or Intel 64-bit