General Bitrate Quality
ATRAC's original 292 kbit/s bitrate was designed to be close to CD quality acoustically. This is the bitrate used on original MiniDiscs. Years later ATRAC was improved and is generally considered better than earlier versions at similar bitrates. For purposes of comparison, CDs are encoded at 1411.2 kbit/s, and lossless encoders can encode most CDs below 1000 kbit/s, with significant bitrate reduction for easier-to-encode content such as voice.
Read more about this topic: Adaptive Transform Acoustic Coding
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