Mossca Player

Mossca — HiFi Hi-Res Music Player

Mossca is a high-resolution music player powered by its own HiFi audio engine. Featuring real-time 32-bit floating-point audio processing and HQ SRC resampling with double-precision internal calculations, it supports native DSD playback, real-time PCM-to-DSD modulation, and external USB DAC output. It also offers headphone frequency response correction, parametric EQ, Crossfeed, and a range of DSP audio processing features.

Designed for audiophiles, headphone enthusiasts, and anyone who appreciates better sound.

Hi-Res Audio & DAC Support

• Mossca HiFi Audio Engine: Proprietary audio engine with real-time 32-bit floating-point processing, handling audio decoding coordination, resampling, and DSP processing
• High-Quality Resampling (HQ SRC): Double-precision internal calculations with support for multi-rate upsampling and high-sample-rate output
• Native DSD Playback: Supports DSF and DFF formats, including DoP (DSD over PCM) transmission
• Real-Time PCM-to-DSD Modulation: Converts PCM audio to DSD64–DSD256 in real time for output through compatible external USB DACs
• DSD-to-PCM Conversion: Uses FIR filtering to process DSD audio for playback through PCM output devices
• USB DAC Output: Supports device sample rate negotiation and high-resolution audio playback
• Signal Path: Displays the source format, audio processing stages, and actual output format

Headphone Tuning & DSP Effects

• Headphone Frequency Response Correction: Covers 6,330 headphone models with over 14,000 AutoEQ / OPRA tuning profiles
• Target Curves & Frequency Band Adjustment: Supports multiple target curves and headphone compensation, with independent bass, midrange, and treble adjustments
• Real-Time Headphone Tuning: Adjust parameters during playback, view frequency response curves, and compare settings with A/B listening
• Parametric Equalizer (PEQ): Adjust frequency, gain, and Q factor, with support for importing custom configurations
• Crossfeed Headphone Soundstage: Simulates natural crossfeed between left and right channels to improve stereo imaging when listening through headphones
• Auto Headroom: Helps reduce the risk of digital clipping caused by EQ gain adjustments
• Tape Sound: Recreates the warmth and sonic character of analog tape, with adjustable effect intensity
• Real-Time DSP Processing: Adjust sound characteristics and processing parameters while music is playing

Music Sources & Servers

• Local Music Library: Import, scan, index, and manage local music files
• Mossca Server: A free music server designed for personal music collections, featuring library indexing, album and artist management, and remote streaming. Free to deploy and use
• Navidrome / Subsonic: Supports Navidrome, Subsonic, and OpenSubsonic-compatible music servers
• Jellyfin / Emby / Plex: Connect to popular personal media servers to access and play your music collection
• SMB / WebDAV: Network file access and offline downloads
• iOS Files App: Add individual music files or entire folders directly to your library through the Files app without making additional copies
• Mac Library Sync: One-tap full music library synchronization with Mossca for Mac
• Remote Streaming: Stream music from personal servers over local networks or the internet
• Streaming Transcoding Settings: Configure transcoding formats and bitrates based on server capabilities and network conditions
• Offline Music: Download music from remote servers for playback without an internet connection


A Simpler Music Player: SirenX

If you don’t need advanced HiFi audio settings or an external USB DAC, and simply want a fast, straightforward way to enjoy your personal music collection, try our other music player:
SirenX — A Minimalist Player for Local & Self-Hosted Lossless Music
Simple, fast, completely free, no account required, and no ads.


Contact: mynameisfung@gmail.com