Consumer Electronics DAC

USB Audio DSP

PRO-DSD1024-K1 is a software-defined audio platform that enables HiFi brands, ODMs, and IDH partners to differentiate through DSP processing, real-time tuning, and continuous firmware evolution — delivered as a production-ready reference design.

DSD1024 Native 31-Band Parametric EQ Browser-Based DSP Tuner Firmware Evolution

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PRO-DSD1024-K1 USB Audio DSP solution board featuring PRO-INTERFACE-M1 platform module, ES9039Q2M DAC, USB-C, and optical SPDIF connections

Core Capabilities

Traditional multi-chip approaches require separate components for USB bridging, sample rate conversion, DSP processing, and system control — resulting in fixed-function products where every new feature demands a new board spin. PRO-DSD1024-K1 takes a different path: a unified USB Audio DSP platform where audio capabilities are delivered and expanded through software. The evaluation platform demonstrates continuous capability expansion through firmware updates. Every capability below is verified and demonstrable on the current evaluation board. No roadmap promises — these work today.

DSD1024 Native

Native DSD playback from DSD64 to DSD1024 via Windows ASIO—pure bitstream, no PCM conversion.

Verified stable 4+ hours continuous
Pure bitstream, zero PCM conversion
Windows ASIO exclusive mode

Technical Features

PRO-DSD1024-K1 system architecture: PRO-INTERFACE-M1 DSP platform with USB, SPDIF, I2S interfaces feeding ES9039Q2M DAC for analog output

Integrated DSP Platform

The platform integrates USB 2.0 PHY, DSP processing, ASRC, and power management into a single module, replacing the traditional multi-chip stack. Unified firmware and a single integration point simplify your development cycle.

Architecture comparison: traditional multi-chip approach (4+ discrete ICs) versus integrated PRO-INTERFACE-M1 platform

Beyond Multi-Chip Limitations

Where traditional approaches require separate USB bridge, SRC, DSP, and control MCU chips, this platform consolidates everything into one solution. Software-defined processing replaces hardware-locked functionality — your differentiation comes from algorithms, not component selection.

DSP Tuner browser interface showing 31-band parametric EQ with real-time frequency response visualization

Browser-Based DSP Tuner

DSP Tuner connects via WebHID for zero-install, real-time parameter adjustment across all major desktop operating systems. Your product team can demo, tune, and iterate audio profiles without building a custom application.

Audio format support spectrum: PCM from 44.1kHz to 768kHz and Native DSD from DSD64 to DSD1024

Full-Spectrum Format Support

USB PCM playback up to 768kHz/32bit (verified stable 8+ hours) and Native DSD from DSD64 to DSD1024 (verified stable 4+ hours). The platform covers every format tier your customers expect.

Platform evolution roadmap: delivered capabilities (DSD1024, EQ, DSP Tuner), roadmap items (SRC, spatial audio), and exploration directions

Continuous Platform Evolution

The DSP effect library already includes Reverb, PitchShift, Harmony, Exciter, DRC, EQ, AutoTune, and UV Meter. SRC and spatial audio are on the development roadmap. Multi-channel processing remains an exploration direction.

Application Scenarios

Desktop HiFi DAC

Full reference design for desktop decoders. DSD1024 Native and 31-band EQ give reviewers and audiophiles measurable reasons to choose your product.

Headphone Amplifier

Portable or desktop headphone amps can benefit from DSP Tuner-driven sound profiles, enabling signature tuning curves without a dedicated software team.

Streaming Player

USB input plus SPDIF output enables network streaming player architectures. The platform handles high-resolution decoding while your team focuses on connectivity.

Studio Monitor

Precision EQ calibration through DSP Tuner helps studio monitor manufacturers deliver factory-calibrated frequency response with per-unit tuning accuracy.

Active Speaker

DSP front-end for active speakers and home theater systems. Parametric EQ and effects processing deliver room-matched audio directly from the platform.