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Recovering audio from a lost format with open source

Submitted by Rianne Schestowitz on Sunday 12th of July 2020 07:51:36 AM Filed under
OSS

Back in the early 2000s, we made a family decision to upgrade the living room stereo. The equipment in place at the time was based on a collection of gear that I had purchased some 20 years earlier when I first had a steady post-university income. That early collection could best be described as "industrial chic," most notably the Hafler amplifiers I had built from kits and the Polk speakers made from some kind of composite wood product and finished with an ugly faux-rosewood vinyl wrap. They produced decent sound, but the dorm-room-style decor just wasn't working out in the living room.

Those of you who remember the early 2000s will recall that most of the world was still consuming music on CD. Our family was no exception, and we ended up with a fine CD player that had an interesting feature—it was able to decode regular CDs as well as high-definition-compatible digital (HDCD) discs.

According to Wikipedia, HDCD is a proprietary audio encode-decode process that claims to provide increased dynamic range over that of standard Red Book audio CDs, while retaining backward compatibility with existing compact disc players.

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