DIGITAL SOUND LEVELING DEVICE AND METHOD TO REDUCE THE RISK OF NOISE INDUCED HEARING LOSS
First Claim
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1. A digital sound leveling device reducing the risk of noise induced hearing loss, comprising:
- a parser for parsing an input audio digital signal having a first dynamic range into a plurality of frames;
a digital filter for filtering each frame of the plurality of frames;
a scaling unit receiving a filtered frame from the digital filter; and
a reconstruction unit receiving each scaled filtered frame and recombining the scaled filtered frames to create an output audio digital signal having a second dynamic range.
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Abstract
Devices and methods for digital sound leveling are disclosed. The subject devices and methods can be used to reduce the risk of noise induced hearing loss. According to an embodiment, an audio file can be parsed into frames that are filtered using an A-weighted digital filter and scaled to a desired power level. Accordingly, the dynamic range of an audio output at a particular volume level can be controlled.
49 Citations
20 Claims
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1. A digital sound leveling device reducing the risk of noise induced hearing loss, comprising:
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a parser for parsing an input audio digital signal having a first dynamic range into a plurality of frames; a digital filter for filtering each frame of the plurality of frames; a scaling unit receiving a filtered frame from the digital filter; and a reconstruction unit receiving each scaled filtered frame and recombining the scaled filtered frames to create an output audio digital signal having a second dynamic range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for leveling a digital sound to reduce the risk of noise induced hearing loss, comprising:
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parsing an input audio digital signal into a plurality of frames; filtering each frame with a digital filter; and scaling each filtered frame. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification