Audio DSP Engineer

Job Opportunity - Audio DSP Engineer

Location : Palo, Alto

Job Summary

We are seeking an experienced Audio DSP Engineer to join our In-Vehicle Infotainment (IVI) audio development team supporting next-generation electric vehicle platforms. This role focuses on the design, development, integration, tuning, and validation of real-time audio signal processing solutions, including voice communication, echo cancellation, noise reduction, and audio post-processing technologies.

The ideal candidate will possess strong expertise in audio DSP algorithms, embedded Linux audio systems, and real-time software development using C/C++. Experience with automotive audio systems, microphone array processing, and voice enhancement technologies is highly preferred.

Key Responsibilities

• Design, develop, optimize, and maintain the IVI audio software stack for automotive platforms.
• Develop and integrate voice communication and speech processing solutions, including Echo Cancellation and Noise Reduction technologies.
• Implement and optimize audio DSP algorithms for real-time embedded systems.
• Develop audio playback and post-processing pipelines including mixing, routing, equalization, gain control, filtering, and sample rate conversion.
• Integrate microphone array processing technologies such as beamforming and Direction of Arrival (DoA) estimation.
• Collaborate with hardware, system integration, and software teams to ensure seamless audio system performance.
• Work closely with QA and validation teams to perform testing, debugging, tuning, and system validation.
• Support acoustic measurements, audio tuning, and objective performance evaluations.
• Analyze and resolve real-time audio performance, latency, and quality issues.

Required Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Signal Processing, or related field.
• Strong experience in Audio DSP development and speech signal processing.
• Hands-on experience with:
• Acoustic Echo Cancellation (AEC)
• Noise Reduction (NR)
• Residual Echo Suppression (RES)
• Voice Activity Detection (VAD)
• Automatic Gain Control (AGC)
• Beamforming (MVDR or similar)
• Wind Noise Reduction
• Direction of Arrival (DoA)
• Speech Enhancement
• Experience with traditional DSP algorithms, statistical signal processing, and ML/AI-based speech enhancement solutions.
• Strong knowledge of audio post-processing:
• Audio Mixing and Routing
• Equalization (EQ)
• Gain/Volume Control
• Mute/Ducking
• Channel Mapping
• Audio Filtering
• Sample Rate Conversion
• Strong understanding of Linux audio architecture, particularly ALSA .
• Proficiency in C/C++ programming for real-time embedded systems.
• Experience with Python and MATLAB for algorithm development and validation.

Preferred Qualifications

• Experience commercializing voice communication and voice recognition features.
• Automotive or In-Vehicle Infotainment (IVI) audio development experience.
• Hands-on experience with DSP Concepts Audio Weaver (AWE) .
• Familiarity with embedded Linux audio frameworks and production software deployment.
• Experience with acoustic tuning and validation tools such as:
• HEAD Acoustics
• Audio Precision
• HATS (Head and Torso Simulator)
• Experience with Deep Learning, Neural Networks, and Hybrid DSP + ML audio solutions.

Technical Skills

• Programming: C, C++, Python, MATLAB
• Audio Frameworks: ALSA, Audio Weaver (AWE)
• Audio DSP: AEC, NR, AGC, VAD, Beamforming, Speech Enhancement
• Embedded Systems: Linux, Real-Time Audio Processing
• Automotive Technologies: IVI, Voice Communication, Microphone Arrays