Super Bit Mapping (SBM) is a noise shaping process, developed by Sony for CD mastering. Sony claims that the Super Bit Mapping process converts a 20-bit signal from master recording into a 16-bit signal nearly without sound quality loss, using noise shaping to improve signal-to-noise ratio over the frequency bands most acutely perceived by human hearing.
Super Bit Mapping (SBM) is a noise shaping process, developed by Sony for CD mastering. Sony claims that the Super Bit Mapping process converts a 20-bit signal from master recording into a 16-bit signal nearly without sound quality loss, using noise shaping to improve signal-to-noise ratio over the frequency bands most acutely perceived by human hearing.
Source: Wikipedia "Super Bit Mapping" · CC BY-SA 4.0
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