SYSTEM AND METHOD FOR DIGITAL SIGNAL PROCESSING
First Claim
1. A system for digital signal processing of an input audio signal comprising:
- a high pass filter configured to filter the input audio signal to create a high pass signal,a first low shelf filter configured to filter the high pass signal to create a first low shelf signal,a first high shelf filter configured to filter the first low shelf signal to create the first filtered signal.a first compressor configured to modulate the first filtered signal to create a modulated signal,a second low shelf filter configured to between 100 Hz to 3000 Hz and −
5 dB to −
20 dB to filter the modulated signal to create a second low shelf signal,a second high shelf filter configured to between 100 Hz to 3000 Hz and +5 dB to +20 dB to filter the second low shelf signal to create the second filtered signal,a first processing module configured to process second filtered signal to create a processed signal,a band splitter configured to split the processed signal into a low band signal, a mid band signal, and a high band signal,a low band compressor configured to modulate the low band signal to create a modulated low band signal,a high band compressor configured to modulate the high band signal to create a modulated high band signal, anda second processing module configured to process the modulated low band signal, the mid band signal, and the modulated high band signal to create an output signal.
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Abstract
The present invention provides methods and systems for digital processing of an input audio signal. Specifically, the present invention includes a high pass filter configured to filter the input audio signal to create a high pass signal. A first filter module then filters the high pass signal to create a first filtered signal. A first compressor modulates the first filtered signal to create a modulated signal. A second filter module then filters the modulated signal to create a second filtered signal. The second filtered signal is processed by a first processing module. A band splitter splits the processed signal into low band, mid band, and high band signals. The low band and high band signals are modulated by respective compressors. A second processing module further processes the modulated low band, mid band, and modulated high band signals to create an output signal.
25 Citations
13 Claims
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1. A system for digital signal processing of an input audio signal comprising:
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a high pass filter configured to filter the input audio signal to create a high pass signal, a first low shelf filter configured to filter the high pass signal to create a first low shelf signal, a first high shelf filter configured to filter the first low shelf signal to create the first filtered signal. a first compressor configured to modulate the first filtered signal to create a modulated signal, a second low shelf filter configured to between 100 Hz to 3000 Hz and −
5 dB to −
20 dB to filter the modulated signal to create a second low shelf signal,a second high shelf filter configured to between 100 Hz to 3000 Hz and +5 dB to +20 dB to filter the second low shelf signal to create the second filtered signal, a first processing module configured to process second filtered signal to create a processed signal, a band splitter configured to split the processed signal into a low band signal, a mid band signal, and a high band signal, a low band compressor configured to modulate the low band signal to create a modulated low band signal, a high band compressor configured to modulate the high band signal to create a modulated high band signal, and a second processing module configured to process the modulated low band signal, the mid band signal, and the modulated high band signal to create an output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification