Friday Dec 02, 2022

NVIDIA Maxine Reinvents Real-Time Communication With AI – Nvidia

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Everyone wants to be heard. And with more people than ever in video calls or live streaming from their home offices, rich audio free from echo hiccups and background noises like barking dogs is key to better sounding online experiences.

NVIDIA Maxine offers GPU-accelerated, AI-enabled software development kits to help developers build scalable, low-latency audio and video effects pipelines that improve call quality and user experience.

Today, NVIDIA announced at GTC that Maxine is adding acoustic echo cancellation and AI-based upsampling for better sound quality.

Acoustic Echo Cancellation eliminates acoustic echo from the audio stream in real time, preserving speech quality even during double-talk. With AI-based technology, Maxine achieves more effective echo cancellation than that achieved via traditional digital signal processing algorithms.

Audio Super Resolution improves the quality of a low-bandwidth audio signal by restoring the energy lost in higher frequency bands using AI-based techniques. Maxine Audio Super Resolution supports upsampling the audio  from 8 kHz (narrowband) to 16 kHz (wideband), from 16 kHz to 48 kHz (ultra-wideband) and from 8 kHz to 48 kHz. Lower sampling rates such as 8 kHz often result in muffled voices and emphasize artifacts such as sibilance and make the speech difficult to understand.

Modern film and television studios often use 48 kHz (or higher) sampling rate for recording audio, in order to maintain fidelity of the original signal and preserve clarity. Audio Super Resolution can help restore the fidelity of old audio recordings, derived from magnetic tapes or other low bandwidth media.

Bridging the Sound Gap 

Most modern telecommunication takes place using wideband or ultra-wideband audio. Since NVIDIA Audio Super Resolution can upsample and restore the narrowband audio in real-time, the technology can effectively be used to bridge the quality gap between traditional copper wire phone lines and modern VoIP-based wideband communication systems.

Real-time communication — whether for conference calls, call centers or live streaming of all kinds — is taking a big leap forward with Maxine.

Since its initial release, Maxine has been adopted by many of the world’s leading providers for video communications, content creation and live streaming.

The worldwide market for video conferencing is expected to increase to nearly $13 billion in 2028, up from about $6.3 billion in 2021, according to Fortune Business Insights.

WFH: A Way of Life 

The move to work from home, or WFH, has become an accepted norm across companies, and organizations are adapting to the new expectations.

Analyst firm Gartner estimates that only a quarter of meetings for enterprises will be in person in 2024, a decline from 60 percent pre-pandemic.

Virtual collaboration in the U.S. has played an important role as people have taken on hybrid and remote positions in the past two years amid the pandemic.

But as organizations seek to maintain company culture and workplace experience, the stakes have risen for higher-quality media interactivity.

Solving the Cocktail Party Problem    

But sometimes work and home life collide. As a result, meetings are often filled with background noises from kids, construction work outside or emergency vehicle sirens, causing brief interruptions in the flow of conference calls.

Maxine helps solve an age-old audio issue known as the cocktail party problem. With AI, it can filter out unwanted background noises, allowing users to be better heard, whether they’re in a home office or on the road.

The Maxine GPU-accelerated platform provides an end-to-end …….

Source: https://blogs.nvidia.com/blog/2022/03/22/maxine-reinvents-communication-ai/

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