Audio System And Audio Processing Method
AssigneeMediatek Inc.
InventorsYung-Chun Lei, Shang-Tzu Ju
Life of this patent
Estimating the term…
Abstract
An audio system and an audio processing method are provided. The audio system comprises a down mixer, an ADC, a storage unit, a control unit, a DSP unit, and a DAC. The down mixer first down-converts an analog signal, which is then converted by the ADC into a first audio digital signal. The storage unit stores a second audio digital signal. The control unit generates a control signal. The DSP unit then processes the first audio digital signal or the second audio digital signal according to the control signal to generate a processed audio digital signal. The DAC converts this processed audio digital signal to a processed analog signal for playback. The audio processing method comprises the steps executed in the audio system.
Claims20
An audio system, comprising:
- a down mixer for down-converting an analog signal;
- an analog to digital converter (ADC) for converting the down-converted analog signal into a first audio digital signal;
- a storage unit for storing a second audio digital signal;
- a control unit for generating a control signal;
- a digital signal processing (DSP) unit for processing one of the first audio digital signal and the second audio digital signal according to the control signal to generate a processed audio digital signal;
- and
- a digital to analog converter (DAC) for converting the processed audio digital signal to a processed analog signal for playing.
An audio processing method, comprising:
- down-converting an analog signal;
- converting the down-converted analog signal into a first audio digital signal;
- storing a second audio digital signal;
- generating a control signal;
- processing one of the first audio digital signal and the second audio digital signal according to the control signal to generate a processed audio digital signal by a DSP unit;
- and
- converting the processed audio digital signal to a processed analog signal for playing.
An audio system, comprising:
- means for down-converting an analog signal;
- means for converting the down-converted analog signal into a first audio digital signal;
- means for storing a second audio digital signal;
- means for generating a control signal;
- means for processing one of the first audio digital signal and the second audio digital signal according to the control signal to generate a processed audio digital signal;
- and
- means for converting the processed audio digital signal to a processed analog signal for playing.
Dependencies are inferred from the claim text.