Audio Product Development Engineer DSP

Ensure high quality audio performance in GN headsets by porting integrating and validating audio DSP algorithms from reference platforms to specific target platforms (chipsets/OS/SDKs) securing robust real time operation in mass produced products. Furthermore troubleshooting complex audio DSP and platform-related issues feeding insights back into the product development cycle.

Key Responsibilities

• Algorithm porting integration and optimization to the target platforms.
  • Port existing audio DSP algorithms (e.g. Noise reduction Beamforming AEC EQ ANC) from reference implementations to the specific target platforms.
  • Embed the ported algorithm into the existing FW stack of the target platform including defined interfaces data flow and control mechanism for seamless operation of headsets overall system.
  • Adapt and optimize code to target SDKs toolchains and audio frameworks while maintaining algorithm behavior and performance.
    • Handle fixedpoint and floatingpoint implementations data formats and platformspecific constraints.
• Integrate DSP/HW modules of target platforms into overall audio signal chain
  • Understand the flow of audio data from transducers through various DSP blocks and out to the speakers and transmission channels.
  • Work with the platforms specific hardware abstraction layer or audio peripherals (ADCs DACs I2S/PCM interfaces transducers).
• Validation and verification of the ported algorithms and integrated modules.
  • Develop and execute comprehensive test plans to verify the functionality and performance of individual DSP blocks and the complete audio signal chain.
  • Regression test - ensure new changes or optimizations do not compromise the existing functionality.

• Debugging & problem solving
  • Perform low level debugging using debuggers emulators and specialized tools to diagnose issues within the DSP firmware hardware registers memory and real time execution flow.
  • Identify root causes of audio anomalies or unexpected behaviors that might be caused by DSP algorithms hardware interactions OS scheduling or interference.
  • Analyze field logs audio recordings and reported symptoms then potentially developed specific diagnostic tools or FW builds for field testing. At the end provide timely resolution and implement robust fixes.
• Audio system calibration and measurement tool development
  • Develop and implement FW or SW routines for factory calibration of transducers and other audio components to compensate unit-to-unit variation.
  • Create internal tools or scripts for automated testing debugging and performance evaluation during development and manufacturing.
• Documentation & maintenance
  • Documentimplementation detail integration interfaces configuration parameters and test procedures.
  • Ensure well-commented code modular and adherence to GN coding standards for future maintenance and scalability.
• CrossFunctional Collaboration
  • Work closely with Algorithm/DSP researchers FW/SW engineers and Acoustic Engineers to ensure the ported implementation matches the intended algorithm design and audio targets.
  • Engage with vendors for technical support SDK updates bug reporting and leverage platform-specific optimizations.

Required Qualifications

• Bachelors or masters degree in Electrical Engineering Signal Processing Computer Science or related technical fields.
• Solid knowledge of core audio DSP concepts (equalization FFT adaptive filters gain control etc.).
• Experienced with MATLAB or Python for signal analysis verification and test automation.
• Proficient inC/C developmentfor embedded systems.
• Familiar in fixed point and floating-point DSP implementation with and understanding of performance memory and power optimization techniques.
• Understanding of hardware-software integration and interaction with audio peripherals (ADCs DACs I2S/PCM interface).
• Experienced with version control (Git) and modern software development workflows.

Preferred Qualifications

• Handson experience with various DSP architectures (e.g. ARM Tensilica etc.) and their associated toolchains.
• Experienced with:
  • Multimic processing AEC noise reduction or ANC implementations.
  • Automated test frameworks and continuous integration for embedded/DSP projects.
• Have background in communication headsets earbuds speakerphones or similar audio products.

Key Competencies

• Ability to perform system level diagnostics and root cause analysis.
• Structured & systematic approach in testing troubleshooting data analysis and documenting work.
• Strong implementation and detailoriented mindset with focus on robustness and reproducibility.
• Ability to collaborate effectively with crossfunctional international teams.
• Good verbal and written communication skills in English.

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