Overall Purpose
Ensure high quality audio performance in GN headsets by porting, integrating, 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 platform-related issues, feeding insights back the product development cycle.
Key Responsibilities
▲ Algorithm porting, integration, 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 the existing FW stack of the target platform, including defined interfaces, data flow, control mechanism fseamless operation of headset’s overall system.
• Adapt optimize code to target SDKs, toolchains, audio frameworks while maintaining algorithm behaviperformance.
• Handle fixed point floating point implementations, data formats, platform specific constraints.
▲ Integrate DSP/HW modules of target platforms overall audio signal chain
• Understthe flow of audio data from transducers through various DSP blocks out to the speakers transmission channels.
• Work with the platform’s specific hardware abstraction layer audio peripherals (ADCs, DACs, I2S/PCM interfaces, transducers).
▲ Validation verification of the ported algorithms integrated modules.
• Develop execute comprehensive test plans to verify the functionality performance of individual DSP blocks the complete audio signal chain.
• Regression test - ensure new changes optimizations do not compromise the existing functionality.
▲ Debugging & problem solving
• Perform low level debugging using debuggers, emulators, specialized tools to diagnose issues within the DSP firmware, hardware registers, memory, real time execution flow.
• Identify root causes of audio anomalies unexpected behaviors that might be caused by DSP algorithms, hardware interactions, OS scheduling, interference.
• Analyze field logs, audio recordings, reported symptoms, then potentially developed specific diagnostic tools FW builds ffield testing. At the end, provide timely resolution implement robust fixes.
▲ Audio system calibration measurement tool development
• Develop implement FW SW routines ffactory calibration of transducers other audio components to compensate unit-to-unit variation.
• internal tools scripts fautomated testing, debugging, performance evaluation during development manufacturing.
▲ Documentation & maintenance
• Document implementation detail, integration interfaces, configuration parameters, test procedures.
• Ensure well-commented code, modular, adherence to GN coding standards ffuture maintenance scalability.
▲ Cross Functional Collaboration
• Work closely with Algorithm/DSP researchers, FW/SW engineers, Acoustic Engineers to ensure the ported implementation matches the intended algorithm design audio targets.
• Engage with vendors ftechnical support, SDK updates, bug reporting leverage platform-specific optimizations.
Required Qualifications
• Bachelor’s master’s degree in Electrical Engineering, Signal Processing, Computer Science, related technical fields.
• Solid knowledge of core audio DSP concepts (equalization, FFT, adaptive filters, gain control, etc.).
• Experienced with MATLAB Python fsignal analysis, verification, test automation.
• Proficient in C/C++ development fembedded systems.
• Familiar in fixed point floating-point DSP implementation with understanding of performance, memory, power optimization techniques.
• Understanding of hardware-software integration interaction with audio peripherals (ADCs, DACs, I2S/PCM interface).
• Experienced with version control (Git) modern software development workflows.
Preferred Qualifications
• Hands on experience with various DSP architectures (e.g., ARM, Tensilica, etc.) their associated toolchains.
• Experienced with:
• Multi mic processing, AEC, noise reduction, ANC implementations.
• Automated test frameworks continuous integration fembedded/DSP projects.
• Have background in communication headsets, earbuds, speakerphones, similar audio products.
Key Competencies
• Ability to perform system level diagnostics root cause analysis.
• Structured & systematic approach in testing, troubleshooting, data analysis, documenting work.
• Strong implementation detailiented mindset with focus on robustness reproducibility.
• Ability to collaborate effectively with cross functional, international teams.
• Good verbal written communication skills in English.
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