fidelplayer: Hi-Res Audio

Play DSD, FLAC and hi-res audio through a true audiophile DSP engine — parametric & linear-phase EQ, AutoEQ, convolution, upsampling and bit-perfect output.

fidelplayer is an audiophile music player for people who care about how their music actually sounds.

Play your local library — including DSD (DSF/DFF), FLAC, ALAC, WAV, AIFF, MP3, AAC and more — through a real, high-precision DSP engine built on AVAudioEngine and custom audio units.

HIGH-FIDELITY ENGINE

• Bit-Perfect mode: play the source completely untouched at its native rate
• Up/oversampling to 96 / 176.4 / 192 kHz
• 10-band equalizer with Standard, Linear-Phase and Minimum-Phase FIR modes
• AutoEQ import: apply your headphone correction curve in seconds
• Convolution: room / headphone impulse-response correction
• Crossfeed, HRTF binaural, stereo width, channel balance & polarity

DSD DONE RIGHT

• Streaming DSD-to-PCM decode with a deep Blackman-Harris filter; plays instantly
• Reads embedded track tags; clip-safe level matching

MORE

• High-Frequency Reconstruction (HFR) to restore highs cut by lossy codecs
• ReplayGain & loudness normalization, LUFS / DR readout
• Gapless playback and crossfade
• Export any track as a 24-bit FLAC with your full processing chain
• Export your whole library to a folder as a backup

fidelplayer is fully on-device: no ads, no tracking, no accounts. Nothing ever leaves your phone.

fidelplayer Pro unlocks the high-fidelity features with a single one-time purchase. Every new install gets a 7-day free trial.