Audio signal enhancement

Details Audio signal enhancement Audio signal enhancement

2005-01-10

2010-06-01

Chin, Vivian (Department: 2614)

Electrical audio signal processing systems and devices

Sound effects

C381S102000, C381S107000, C381S098000

Reexamination Certificate

active

07729497

ABSTRACT:
An audio signal (A) is enhanced by dividing the signal into time segments of a selected frequency range and scaling the audio signal in each time segment. The time segments (S) are defined by zero crossings (Z) of the audio signal, thus avoiding the introduction of any undesired harmonics. The scaling may involve linear or non-linear scaling factors. When the selected frequency range comprises bass frequencies, a very effective and distortion-free bass enhancement is obtained.

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patent: 2003/0044024 (2003-03-01), Aarts et al.

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