SautiPlay

Features Playlist engine (set/add/insert/remove/move) Gapless transitions between tracks Audiophile-grade resampling algorithms powered by libsamplerate (SRC Sinc Best/Medium/Fastest, ZOH, Linear) Play/pause/stop/seek/next/previous/jump Shuffle + loop modes (off, all, one) FX chain: gain, pan, stereo widening, audiophile crossfeed (BS2B/Joe0bloggs), EQ (3-band), multiband EQ, reverb, low-pass, high-pass, band-pass, delay, peak EQ, notch, low-shelf, high-shelf Pollable player status and stream updates Native targets: Windows, Linux, Android, iOS/macOS Audiophile Headphone Crossfeed When listening to music originally mastered for stereo speakers on headphones, extreme stereo separation (classic L/R ping-pong) can cause listening fatigue since your left ear cannot hear the right speaker at all. Sautiflow features a mastering-grade Crossfeed algorithm with configurable presets:

1. BS2B Weak: Smooths out extreme stereo separation with minimal tonal change. 2. BS2B Strong: Stronger acoustic shadowing for extreme-panned old records (e.g. early Beatles). 3. Joe0bloggs Realistic: Delay-heavy, Linkwitz-style frequency shaping for a natural room-like experience on headphones. `dart // Enable crossfeed player.setCrossfeedEnabled(enabled: true);

// Set preset (1 = BS2B Weak, 2 = BS2B Strong, 3 = Joe0bloggs) player.setCrossfeedPreset(preset: 3); `

Audio Formats & Quality Sautiflow is built with audiophile-grade fidelity in mind. It handles different audio formats natively within its C++ engine to provide the best possible acoustic reproduction:

Lossy Formats (MP3, AAC, OGG etc.): These formats are inherently compressed. Upon playback, Sautiflow upscales/upsamples the decoded bitstream internally (in 32-bit floating point math) ensuring that DSP operations—like EQ, reverb, and spatial width—have plenty of headroom and do not clip or introduce artificial artifacts typical of low-resolution math. Lossless Formats (FLAC, WAV, ALAC, etc.): These are mapped and processed raw. Sautiflow does not dynamically upscale them to guess lost data (since nothing is lost). It maintains their pristine bit-perfect original depth into the DSP chain. If the file's sample rate doesn't match your device's native hardware rate (e.g., trying to play an 88.2kHz FLAC file on a 48kHz output device), Sautiflow will employ high-fidelity resampling transparently using libsamplerate to perfectly match your hardware, avoiding quality loss while retaining bit-depth fidelity.