SRE Audio: USB DAC & DSD

SRE Audio is a high-resolution Android music player designed for USB DACs and music enthusiasts who want more control over their listening experience. From bit-perfect USB playback that preserves the original digital signal to RF spatial expansion, SRE harmonic enhancement, high-quality upsampling, and real-time DSD remastering, SRE Audio offers different ways to experience the same music. With custom-designed digital filters and carefully tuned sound processing, you can explore different sonic presentations and find the listening experience that suits your preferences. ■ RF (Real Field) — Wider, More Natural Soundstage RF is an audio processing feature developed to create a wider and more natural sense of space. It is designed to expand the perceived soundstage, allowing instruments and vocals to feel more naturally positioned and separated. By enhancing the spatial presentation of stereo recordings, RF offers a greater sense of openness and a different perspective on familiar music. ■ SRE — Harmonic Texture and Musical Detail SRE is an audio processing technology designed to enrich natural harmonic textures and subtle musical details. While respecting the character of the original recording, SRE aims to provide a richer sense of harmonic texture and musical expression. Compare original playback with SRE processing and choose the presentation you prefer. ■ Bit-Perfect USB Audio — Preserve the Original SRE Audio sends digital audio directly to compatible USB DACs, bypassing Android's conventional audio mixing path. When audio processing is disabled, bit-perfect playback preserves the original PCM sample rate and digital audio data. Enjoy high-resolution PCM playback through compatible USB audio hardware, with available output formats determined by your connected DAC. ■ Custom-Designed Digital Filters and Silky Tuning SRE Audio applies a custom-designed digital filter by default during supported upsampling playback. For listeners who prefer a softer sound, the optional Silky tuning filter offers an alternative presentation. Silky adjusts the coefficients of the resampling filter to achieve a smoother listening character. Explore different upsampling and filter settings to find the presentation that best suits your music and audio system. ■ DSD128 / DSD256 — Real-Time DSD Remastering Convert compatible PCM music to DSD128 or DSD256 in real time. DSD Remaster uses a dedicated signal processing and output path, distinct from conventional PCM playback or PCM upsampling. Compare different playback methods using your own music and discover the presentation you prefer. A compatible DSD-capable USB DAC is required. ■ Native DSD and High-Resolution Audio Play supported DSD music through Native DSD or DoP on compatible USB DACs. Playback up to DSD256 is supported where the connected hardware allows it. High-resolution PCM playback and FLAC music files are also supported. ■ Your Music, Your Listening Experience • Bit-perfect playback to preserve the original digital signal • RF for a wider, more natural soundstage • SRE for harmonic texture and musical detail • Custom-designed digital filters and Silky tuning with high-quality upsampling • Real-time DSD128 / DSD256 remastering SRE Audio is designed to let you experience the same recording through different playback methods and choose the sound that best matches your preferences and audio system. ■ Compatibility and Playback Notes Bit-perfect playback applies to the unprocessed USB direct output path. RF, SRE, and DSD Remaster intentionally process or convert the audio signal. Available features, sample rates, bit depths, and DSD output formats depend on your Android device, audio source, and connected USB DAC. Perceived sonic differences may vary depending on the recording, listening equipment, and personal preferences.