Power Limiter Configuration for Audio Signals
AssigneeBiamp Systems, LLC
InventorAaron Faulstich
Life of this patent
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Abstract
Example embodiments provide a process that includes one or more of receiving an audio signal at a feedback compressor circuit, receiving an auxiliary attenuation signal from an auxiliary attenuation source, determining a threshold power level based on a value of the auxiliary attenuation signal, determining an output power level of the audio signal exceeds the threshold power level, combining the audio signal with the auxiliary attenuation signal from the auxiliary attenuation source and a compressed attenuation signal from the feedback compressor circuit to create a combination signal, and generating an audio output signal of the feedback compressor circuit based on the combination signal.
Claims20
A method comprising:
- receiving an audio signal at a feedback compressor circuit;
- receiving an auxiliary attenuation signal from an auxiliary attenuation source;
- determining a threshold power level based on the auxiliary attenuation signal;
- combining the audio signal with the auxiliary attenuation signal from the auxiliary attenuation source and a compressed attenuation signal from the feedback compressor circuit to create a combination signal;
- dynamically adjusting a low pass filter (LPF) based on a change to the threshold power level;
- filtering the audio output signal via the low pass filter (LPF);
- combining the filtered audio output signal with the auxiliary attenuation signal and the compressed attenuation signal to create a combination signal;
- and
- combining the combination signal with the audio signal to create an audio output signal of the feedback compressor circuit.
An apparatus comprising:
- a receiver configured to
- receive an audio signal at a feedback compressor circuit;
- receive an auxiliary attenuation signal from an auxiliary attenuation source;
- and
- a processor configured to
- determine a threshold power level based on the auxiliary attenuation signal;
- combine the audio signal with the auxiliary attenuation signal from the auxiliary attenuation source and a compressed attenuation signal from the feedback compressor circuit to create a combination signal;
- dynamically adjust a low pass filter (LPF) based on a change to the threshold power level;
- filter the audio output signal via the low pass filter (LPF);
- combine the filtered audio output signal with the auxiliary attenuation signal and the compressed attenuation signal to create a combination signal;
- and
- combine the combination signal with the audio signal to create an audio output signal of the feedback compressor circuit.
A non-transitory computer readable storage medium configured to store instructions that when executed cause a processor to perform:
- receiving an audio signal at a feedback compressor circuit;
- receiving an auxiliary attenuation signal from an auxiliary attenuation source;
- determining a threshold power level based on the auxiliary attenuation signal;
- combining the audio signal with the auxiliary attenuation signal from the auxiliary attenuation source and a compressed attenuation signal from the feedback compressor circuit to create a combination signal;
- dynamically adjusting a low pass filter (LPF) based on a change to the threshold power level;
- filtering the audio output signal via the low pass filter (LPF);
- combining the filtered audio output signal with the auxiliary attenuation signal and the compressed attenuation signal to create a combination signal;
- and
- combining the combination signal with the audio signal to create an audio output signal of the feedback compressor circuit.
Dependencies are inferred from the claim text.