Pioneer technology restores lost signal from compressed files
The non-tech media's been full of articles deploring the inferior sound of the MP3 era. Apparently Pioneer agrees. At CES, the company is demonstrating technology it calls Advanced Sound Retrieval, or ASR, which promises to restore some of the signal lost when audio is compressed into a "lossy" format like MP3 or compressed WMA or AAC.
Technically, it's much tricker to restore signal than it is to cut it--that's one of the first rules of audio recording, which is why you want to get the broadest dynamic and frequency range possible, then pare it down, … Read more