Full HD Voice Will Soon Give Your Phone an Audio Upgrade

Powerful algorithms will yield perfectly clear calls

4 min read
Full HD Voice Will Soon Give Your Phone an Audio Upgrade
Photo: Getty Images

HD Voice, the first major upgrade to telephone sound quality since the vacuum-tube era, has finally become widely available—just in time for a new generation of phone service called Full-HD Voice to take its place.

At the Mobile World Congress in Barcelona earlier this year, Fraunhofer IIS (Institute for Integrated Circuits) demonstrated a system based on a combination of powerful standard algorithms that can encode and decode in real time the full audio spectrum to 20 kilohertz in stereo. Switching to Full HD, which could be done in many devices as early as next year, would also mark the complete merging of voice into the mobile data stream, a goal long in the making.

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Why the Internet Needs the InterPlanetary File System

Peer-to-peer file sharing would make the Internet far more efficient

12 min read
An illustration of a series
Carl De Torres

When the COVID-19 pandemic erupted in early 2020, the world made an unprecedented shift to remote work. As a precaution, some Internet providers scaled back service levels temporarily, although that probably wasn’t necessary for countries in Asia, Europe, and North America, which were generally able to cope with the surge in demand caused by people teleworking (and binge-watching Netflix). That’s because most of their networks were overprovisioned, with more capacity than they usually need. But in countries without the same level of investment in network infrastructure, the picture was less rosy: Internet service providers (ISPs) in South Africa and Venezuela, for instance, reported significant strain.

But is overprovisioning the only way to ensure resilience? We don’t think so. To understand the alternative approach we’re championing, though, you first need to recall how the Internet works.

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