v1.7.0-BETA • PUBLIC BETA

Pure Lossless Audio.
Hardware DAC Precision.

tsrossa is a precision audiophile music player engineered with a 64-bit C++ floating-point DSP engine and direct hybrid hardware UAC control for external USB DACs and IEMs. Zero OS resampling. Zero telemetry.

[ ● 64-BIT BIT-PERFECT DSP ]
[ ◆ 32-BIT HARDWARE CHIP ]
BIT-PERFECT LOCK
UAC 2.0 ONLINE
24-bit / 96kHz FLAC • 3,124 kbps02:44 / 08:32
tsrossa Master Deck artwork
Mahler: Symphony No. 2

Lossless Reference Master • Direct DAC Endpoint Claimed

Hardware DSP Switches:Tactile Test
Jitter / THD+N< 0.00008%
CORE ARCHITECTURE // C++ ENGINE

Engineered from Bare Metal for Bit-Perfect Output.

Every stage of the tsrossa playback pipeline is tuned in C++ to preserve high-resolution dynamics, eliminate OS resampling jitter, and deliver uncompressed PCM straight to your external DAC.

[BP]MODULE 1

C++ Floating-Point Accumulator

64-Bit Bit-Perfect DSP Engine

Custom internal processing pipeline eliminates quantization noise, truncation distortion, and prevents forced operating system resampling at the source.

IEEE 754 Float64 Precision0.00 dB Quantization FloorZero SRC Jitter
[HC]MODULE 2

Direct USB Audio Class 2.0/3.0 Bypass

32-Bit Hardware Chip & Hybrid UAC Control

Bypasses system sound daemons to speak directly with high-performance external USB DACs, preserving full 32-bit hardware DAC capabilities.

Direct Endpoint ClaimBit-Exact UAC StreamAsynchronous Isochronous
[NA]MODULE 3

C++ NDK & Apple Silicon CoreAudio

Native Low-Latency Audio Core

Engineered directly in native C++ using Android NDK and Apple Silicon CoreAudio HAL for sub-millisecond audio pipeline latency and micro-memory footprint.

Zero-Copy Circular RingbufferRealtime Priority ThreadARM64 NEON Vectorized
[FL]MODULE 4

Offline Audiophile Reference Architecture

Pure Local Lossless Library

Dedicated to local FLAC, ALAC, and DSD collectors. Instant local memory-mapped indexing, sample-rate badges, and high-resolution VorbisComment art without telemetry or cloud bloat.

Zero Cloud TelemetryEmbedded Cue Sheet SupportBitrate / Sample Inspection
SIGNAL PATH // BIT-PERFECT

Bit-Exact Precision vs. Forced OS Resampling.

Standard operating systems route audio through software sound daemons, clipping peaks and forcing down-sampling to 48kHz. Here is how tsrossa maintains bit-perfection from disk to DAC chip.

STAGE 01

Local Hi-Res FLAC (16/24-bit)

24-bit / 96kHz Original Signal
STAGE 02

tsrossa 64-Bit C++ Float DSP

Pure 64-Bit Float Accumulator (No Clipping)
STAGE 03

Hybrid Hardware UAC Bypass

Direct Kernel USB Access (HAL Bypassed)
STAGE 04

32-Bit External USB DAC + IEM

32-Bit Native Hardware Lock • Bit-Perfect
Signal Integrity: 100% Bit-Perfect • Zero SRC Resampling • 0.00 dB Quantization Floor
MODE: BIT-PERFECT DIRECT
DISTRIBUTION // GITHUB RELEASE HUB

Platform Support Matrix & Builds.

Download signed bit-perfect builds directly from our official open-source GitHub releases. Independent verification, zero telemetry, and zero gatekeeping.

v1.7.0-BETA • APK

Android

  • Android NDK C++ 64-bit DSP Engine
  • Hybrid USB DAC UAC 2.0/3.0 Direct Access
  • Architecture: arm64-v8a (Android 9.0+)
  • Direct Hi-Res Sample-Rate Switching
Download Android APK
v1.0.0-BETA • MACOS

macOS

  • Native Apple Silicon (arm64) Universal binary
  • CoreAudio Exclusive / Hog Mode Bit-Perfect Output
  • Ultra-low RAM footprint (~40MB active playback)
  • Hardware volume attenuation bypass
Download for macOS
COMING SOON • IOS

iOS / iPadOS

  • SwiftUI + CoreAudio RemoteIO engine port in progress
  • Lightning & USB-C Camera Adapter DAC compatibility
  • Background playback with lock-screen bit-rate HUD
Track on GitHub →
COMING SOON • DESKTOP

Windows & Linux Desktop

  • WASAPI Exclusive Mode (Windows) driverless bit-perfect
  • ALSA direct hardware / PipeWire Bit-Exact sink (Linux)
  • Custom memory-mapped file decoding engine
QUICKSTART // 4 STEPS

From Download to Bit-Perfect in 60 Seconds.

No complex driver installations. No root or jailbreak required. Just pure direct hardware handshake.

01 // GET BUILD

Download Signed Release

Download the signed Android APK or native macOS build directly from our official open-source GitHub release repository.

02 // CONNECT DAC

Plug In USB DAC & IEMs

Connect your favorite USB-C DAC dongle, desktop DAC/amp stack, and high-resolution In-Ear Monitors (IEMs) or headphones.

03 // HANDSHAKE

Direct Hardware Handshake

Grant direct USB hardware access when prompted. tsrossa communicates directly with the DAC chip, bypassing OS mixer audio resampling.

04 // LISTEN PURE

Verify Bit-Perfect Indicators

Verify that both [ ● 64-BIT BIT-PERFECT DSP ] and [ ◆ 32-BIT HARDWARE CHIP ] illuminate crimson and titanium silver, then experience true unadulterated sound.

DOCUMENTATION // FAQ

Technical Details & Architecture FAQ.

Everything you need to know about tsrossa’s direct UAC audio engine, privacy commitments, and device compatibility.

Yes. Android by default resamples all audio streams to 48kHz through AudioFlinger. tsrossa bypasses the standard audio framework by communicating directly with your external USB DAC via a custom native C++ USB Audio Class (UAC) driver, sending the bit-exact sample rate (e.g., 44.1kHz, 96kHz, 192kHz) directly to the DAC chip.