Method for allocating optimum amount of bits to MPEG audio data at high speed
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United States of America Patent
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Feb 24, 1998
Grant Date -
N/A
app pub date -
Sep 7, 1995
filing date -
Dec 31, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for allocating an optimum amount of bits to MPEG audio data at high speed. A signal-to-mask ratio obtained through a psychoacoustic model is divided by 6 and the resultant integer quotient is defined as an array pointer. A valid bit allocation amount is obtained at the high speed according to the defined array pointer. The obtained valid bit allocation amount is compared with a fixed bit allocation amount. An optimum bit allocation amount is obtained in accordance with the compared result. Therefore, according to the present invention, the optimum bit allocation amount to the MPEG audio data can be obtained at the high speed with no unnecessary loop repetition by using the signal-to-mask ratio obtained through the psychoacoustic model.
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