Audio signal adjusting system and method
AssigneeHannstar Display Corp.
InventorCHIA-MING CHEN
Life of this patent
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Abstract
An audio signal adjusting method is disclosed, which comprises steps of: determining an environment noise level; calculating a ratio between an environment noise level and an output audio signal level to form a measuring value; comparing the measuring value with a predetermined threshold as an audio comfort value; and determining whether or not to adjust an audio signal parameter according to the comparison result. If the comparison result is incorrect, then the audio signal parameter is adjusted, and the output audio signal should be outputted according to the adjusted audio signal parameter. The audio signal adjusting method can satisfy the different user needs on different environment types.
Claims10
An audio signal adjusting method applied for an electronic device receiving at least one input audio signal, and said audio signal adjusting method comprising steps of:
- utilizing an audio signal detector for detecting an external acoustic signal outside the electronic device and transmitting the detected external acoustic signal to an audio processor;
- utilizing the audio processor for generating an output audio signal according to an audio signal adjusting parameter and the at least one input audio signal, wherein the output audio signal has an output audio signal level, and the audio processor transmits the output audio signal level and the external acoustic signal to a microprocessor;
- utilizing the microprocessor to control an evaluating and comparing logic unit to determine an environmental noise level according to the external acoustic signal, and thereby the microprocessor transmitting the environmental noise level back to the audio processor;
- utilizing the audio processor for calculating a ratio between the environmental noise level and the output audio signal level to correspondingly form a measuring value;
- utilizing the microprocessor for comparing the measuring value with a predetermined threshold;
- and
- utilizing the microprocessor for determining whether or not to adjust the audio signal adjusting parameter according to the comparison result of the measuring value and the predetermined threshold, wherein if the comparison result is incorrect, the microprocessor adjusts the audio signal adjusting parameter and then transmits the adjusted audio signal adjusting parameter to the audio processor, and the audio processor generates a corresponding output audio signal according to the adjusted audio signal adjusting parameter and the at least one input audio signal.
An audio signal adjusting system applied to an electronic device, the electronic device receiving an input audio signal, said audio signal adjusting system comprising:
- an audio signal detector for detecting an external acoustic signal outside the electronic device;
- an audio signal processor for generating an output audio signal according to an audio signal adjusting parameter and the input audio signal, wherein the output audio signal has an output audio signal level;
- an evaluating and comparing logic unit for determining an environmental noise level according to the external acoustic signal, wherein the audio processor calculates a ratio between the environmental noise level and the output audio signal level and thereby correspondingly forms a measuring value;
- a memory for storing a predetermined threshold;
- and
- a microprocessor connected to the memory and the audio processor, receiving the measuring value from the audio processor and the predetermined threshold from the memory, and comparing the measuring value with the predetermined threshold.
Dependencies are inferred from the claim text.