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US 11,600,285 B2Granted
Loudspeaker system provided with dynamic speech equalization
AssigneeEPOS Group A/S
InventorsAnders Røser Hansen, Poul Peder Hestbek, Svend Feldt, Casper Fynsk
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Abstract
A method for speech equalization, comprising the steps of receiving an input audio signal, processing said input audio signal in dependence on frequency and to providing an equalized electric audio signal according to an equalization function, wherein said equalization function comprises at least an actuator part configured to dynamically applying a compensation filter to the received input signal and dynamically applying a transparent filter to the received input signal, and further transmitting an output signal perceivable by a user as sound representative of said electric acoustic input signal or a processed version thereof.
Claims13
A method for dynamic speech equalization, comprising:
- receiving an input audio signal,
- processing said input audio signal in dependence on frequency and providing an equalized electric audio signal according to an equalization function, wherein said equalization function comprises
- an actuator part configured to
- apply a first filter to the received input audio signal to provide a first output signal, and
- apply a second filter to the received input audio signal to provide a second output signal,
- an analysis part configured to determine first and second dynamic mixing weights by
- applying a third filter to said received input audio signal, the third filter being a high pass filter, and
- applying a fourth filter to said received input audio signal, the fourth filter being a low pass filter, and
- a part mixing the first output signal from said first filter and the second output signal from said second filter based on the first and second dynamic weights, respectively, to produce the equalized electric audio signal,
- transmitting an output signal perceivable by a user as sound representative of said equalized electric audio signal or a processed version thereof.
7 more elements
A speakerphone comprising
- an audio interface to at least one of a microphone, a data communication channel, and a phone connection, said audio interface receiving an input audio signal with a first dynamic range of levels representative of a time and frequency variant sound signal, the input audio signal comprising a target signal and/or a noise signal and providing an electric audio input signal;
- a processor;
- a memory storing computer instructions which, when executed, cause the processor to perform a process comprising modifying said input audio signal in dependence on frequency and for providing an equalized electric audio signal according to an equalization function, wherein said equalization function comprises:
- applying a first filter to said received input audio signal, and
- applying a second filter to received input audio signal,
- wherein said process further comprises determining first and second dynamic mixing weights by
- applying a third filter to said received input audio signal, the third filter being a high pass filter, and
- applying a fourth filter to said received input audio signal, the fourth filter being a low pass filter,
- wherein said process further comprises mixing an output signal from said first filter and an output signal from said second filter based on the first and second dynamic weights, respectively, to produce the equalized electric audio signal;
- a loudspeaker for providing an output signal perceivable by a user as sound representative of said equalized electric audio signal or a processed version thereof.
7 more elements
A hearing device comprising
- an audio interface to at least one of a microphone, a data communication channel, and a phone connection, said audio interface receiving an input audio signal with a first dynamic range of levels representative of a time and frequency variant sound signal, the input audio signal comprising a target signal and/or a noise signal and providing an electric audio input signal;
- a processor;
- a memory storing computer instructions which, when executed, cause the processor to perform a process comprising modifying said input audio signal in dependence on frequency and for providing an equalized electric audio signal according to an equalization function, wherein said equalization function comprises:
- applying a first filter to said received input audio signal, and
- applying a second filter to received input audio signal,
- wherein said process further comprises determining first and second dynamic mixing weights by
- applying a third filter to said received input audio signal, the third filter being a high pass filter, and
- applying a fourth filter to said received input audio signal, the fourth filter being a low pass filter,
- wherein said process further comprises mixing an output signal from said first filter and an output signal from said second filter based on the first and second dynamic weights, respectively, to produce the equalized electric audio signal;
- a loudspeaker for providing an output signal perceivable by a user as sound representative of said equalized electric audio signal or a processed version thereof.
7 more elements
Dependencies are inferred from the claim text.