HDCD Meaning and
Definition
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HDCD stands for High Definition Compatible Digital, and it refers to a patented audio encoding/decoding technology developed by Pacific Microsonics Inc. HDCD is designed to enhance the sound quality of audio recordings by increasing the dynamic range and reducing quantization noise.
HDCD works by embedding additional information into the least significant bits of the audio signal during mastering. This added information contains instructions for HDCD capable playback devices on how to decode the audio and reconstruct the original signal with improved fidelity. HDCD recordings can be played on any CD player, but the additional information is only fully decoded and utilized by HDCD compatible devices.
The technology uses a process called Peak Extend to expand the dynamic range of the audio signal by 6dB. This allows for greater detail and a more balanced output between the quietest and loudest parts of the recording. Additionally, HDCD incorporates a process known as Low-Level Expand, which reduces quantization noise and provides a cleaner listening experience.
HDCD is known for preserving the original intent of the recording through its transparent encoding mechanism. It aims to bring audiophile-grade audio quality to conventional CD playback, without the need for specialized hardware or formats. While no longer actively developed or licensed, HDCD remains a notable addition to the audio technology landscape, appreciated by enthusiasts for its ability to enhance the listening experience.
Common Misspellings for HDCD
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