Google Duo will use Lyra Codec to deliver natural sounding calls over 2G


See the growth in users using video calls to connect with loved ones, Google Duo on Android is currently testing a new Lyra codec to deliver natural sounding voice calls over 2G.

This is a new compression technique that guarantees good quality voice or video calls in areas of poor network reception. The new Lyra codec is being tested and will surely benefit users who do not have access to high network connections.

Notably, with the new Google Duo Lyra codec, the app will deliver natural sounding voice or video calls with as little as 3 kbps of network bandwidth.

According to a video shared by Google on YouTube, this new feature was developed with rural populations in India and Brazil in mind, who still do not have high-speed internet access. Not only that, but users staying in congested network areas will also benefit.

The current COVID-19 pandemic is still not over and we cannot visit our loved ones. Video calling is one of the main means of communication that we have relied on since the pandemic.

Google Duo is one of the most used apps during this pandemic time. Speaking of numbers, Google Duo and Meet hosted over 1 trillion minutes of video calls last year alone.

Google Duo Lyra codec will release the biggest strain on the internet infrastructure in the world

To alleviate the pressure on the Internet infrastructure across the world, this new Lyra codec will help you in this process. The Lyra codec is designed to provide recognizable, understandable and natural human speech at low network speeds.

Google was able to achieve this with the help of machine learning. AI was trained on “thousands of hours of audio with speakers in over 70 languages.“This allowed Google Duo to use the Lyra codec by as many people as possible.

The Google Duo Lyra codec is designed to run on a high-end cloud server to a mid-range smartphone with only 90ms of latency. Previously, you would have noticed audio differences in a low bandwidth network. Apparently, the voice signal becomes less intelligible and more robotic.

Thanks to the low bitrate Lyra voice codec, you will get high quality sound even on the slowest networks. So no more robotic or distorted sounds.

Google has released several audio samples, comparing the audio and video capabilities of video calls made using the new Lyra voice codec. You can view all samples by going to here.

Fortunately, this new voice codec feature is being rolled out for Google Duo Android users. Google plans to release Lyra as open-source in the coming weeks. This would allow third-party developers to incorporate Lyra into their own applications.

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