Audio Codec Design Specialist

Key Skills

Algorithms, C++, Deep Learning, Design, Machine learning techniques, MATLAB Programming, Python Programming, Signal processing

Job Description

Your Impact with AI

Who we are?

The BabbleLabs team, part of Cisco WebEx. We are a talented bunch with strong backgrounds in Electrical Engineering, Machine Learning, Speech Processing and Computer Science. Our areas of expertise include: speech enhancement, speech recognition, speech synthesis, and computer vision. But what sets our team apart from the crowd, is our vibrant and unwavering pursuit of excellence.

What you'll be doing

• Designing and prototyping algorithms for advanced audio coding, including pre-processing and post-processing techniques to improve audio quality.
• Participate in the productization process of the prototyped algorithms.
• Contribute to patent IP.
• Contribute with high-quality publications.

Qualifications

• 5+ years of experience in research, development, evaluation and productization of speech and audio coding, including methods for:
• signal preprocessing techniques for optimal bandwidth utilization,
• packet loss concealment,
• post-processing methods for improving quality of low-bitrate audio,
• pitch estimation,
• voice activity detection,
• signal classification,
• time-scale modification techniques for audio synchronization and network jitter compensation.
• Good understanding of modern lossy speech and audio coding standards, including AAC and Opus.
• Strong background in machine learning and deep neural networks.
• Strong background in signal processing, speech modeling, adaptive filtering and related fields.
• Rapid algorithm prototyping experience in MATLAB, Python or C++.
• Inquisitive, proactive and systematic working habits.
• Demonstrated ability to innovate and make architectural trade-offs for balancing performance/cost.

Bonus qualifications

• Prior experience in developing deep learned models for one or more of the above problems.
• Implementing

Education

• Graduate degree in a relevant field. Ph.D. is a plus.

Why Cisco?

Cisco has embarked on an AI journey with immense potential, powered by an innovative and diverse work environment that encourages out-of-the-box thinking. Our strategic AI acquisitions paired with our access to extensive data positions us to have a substantial influence in the AI space in the short term and beyond. At Cisco, we believe in “one company, many careers” and with investment in multiple key AI initiatives across our business, employees have unique opportunities to broaden their experience and skills. Our award-winning culture is proof that a diverse team brings a wealth of perspectives that drive better decision-making, more inclusive products, and a richer work environment for everyone.

If you are motivated about shaping the future with AI, are eager to work with the newest technologies, and are ready to grow on a team that values every individual, Cisco is where you can turn your aspirations into achievements