SG

Senior Staff Engineer, Audio QA

Sgtc India
Bangalore4-7 LPA Posted 1 Aug 2025
FULL TIME
Ble
Telephony
Voip

Job Description

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 like TIA-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.

Required Skills

Join WhatsApp Channel