Super-efficient linear compressor could vastly reduce air con power use

Compressor efficiency might not sound like the most exciting topic in the world, but consider this: the hotter the world gets – and the wealthier its developing countries become – the more air conditioners will come online. According to the IEA, fans a… Continue reading Super-efficient linear compressor could vastly reduce air con power use

How sensitive are acoustic side-channels to compression with a narrowband codec?

Assume sensitive audio emissions from a mechanical keyboard. These audio emissions are often sufficient to reconstruct the actual key presses that generated the sound. If the audio is compressed using a narrowband audio codec such as G.711… Continue reading How sensitive are acoustic side-channels to compression with a narrowband codec?