Dynamic normalization of sound reproduction

Details Dynamic normalization of sound reproduction Dynamic normalization of sound reproduction

2007-10-16

2007-10-16

Chin, Vivian (Department: 2615)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

C381S104000, C381S107000, C381S056000, C381S119000

Reexamination Certificate

active

10384954

ABSTRACT:
A method for generating an audio output from an audio amplifier, the method consisting of receiving a segment of an input audio data stream into a buffer, identifying an adjustment interval in the segment, and calculating an average energy of at least a section of the audio data in the buffer subsequent to the adjustment interval in the segment. The method further includes determining a constant amplification factor in response to the average energy and to a pre-set volume level of the audio output, outputting the audio data from the buffer to the audio amplifier, and, when the audio data output to the audio amplifier reaches the adjustment interval, adjusting the audio amplifier to apply the amplification factor to the audio data in at least the section subsequent to the adjustment interval.

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