Key Responsibilities:
- Designed and executed comprehensive audio quality test plans for VoIP features on wearable devices.
- Validate microphone and speaker audio paths, codecs, echo cancellation, noise suppression, and voice clarity.
- Conduct MOS (Mean Opinion Score) testing and other subjective and objective audio quality assessments.
- Test audio performance in various real-world and lab conditions (e.g., network types, ambient noise environments, device orientations).
- Use test tools and frameworks to capture, analyze, and log audio signals (e.g., latency, jitter, packet loss, dropouts).
- Conduct wakeword testing for voice assistant features and assess responsiveness and false trigger rates.
- Perform product benchmarking and ensure compliance with audio standards (e.g., TIA-920B).
- Collaborate with software, firmware, hardware, and UX teams to troubleshoot and isolate audio defects.
- Document test cases, test results, defects, and contribute to product release sign-off.
- Contribute to the automation of audio tests wherever applicable.
Required Skills & Qualifications:
- Bachelor s degree in Electronics and Communications, DSP, Electrical, Computer Engineering, Acoustics, or a related field.
- 8+ years of experience in audio QA testing, preferably for VoIP, telephony, or wearable products.
- Prior experience with audio performance measurement tools such as:
- Audio Precision (APx)
- Listen SoundCheck
- ACQUA
- HATS (Head and Torso Simulator)
- Hands-on experience with tools like:
- Wireshark(for packet capture and VoIP call analysis)
- Adobe Audition, sox,Audacity, or similar for waveform analysis
- Experience with MOS testing (POLQA, PESQ), subjective audio quality testing, and scripting.
- Experience with product compliance testing for standards likeTIA-920 B.
- Familiarity with mobile and embedded platforms (Android, iOS, RTOS) is a plus.
- Excellent troubleshooting skills, attention to detail, and communication skills.
Nice to Have:
- Experience with noise-canceling algorithms (ANC, ENC, beamforming) testing.
- Experience testing Bluetooth and wireless audio (BLE, Classic BT, Wi-Fi).
- Experience with wake word testing and voice UI systems (e.g., Alexa, Google Assistant, Siri).
- Prior work with wearable audio devices such as smart headsets, earbuds, or AR/VR headsets.
- Solid understanding of VoIP protocols (SIP, RTP, RTCP), audio codecs (e.g., Opus, G.711, G.722), and related networking concepts.
- Exposure to Agile development and CI/CD pipelines for automated testing.
