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High-fidelity (Hi-Fi) audio system and driving method thereof

A technology of audio system and driving method, applied in the direction of transducer circuit, instrument, sensor, etc., can solve the problem of high cost and achieve the effect of reducing cost

Active Publication Date: 2013-04-17
VIA TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the computer system with I2S interface is not popular at present, so the cost of this system architecture is relatively high
Moreover, the high-fidelity codec 220 with audio decoder is also relatively high in cost

Method used

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  • High-fidelity (Hi-Fi) audio system and driving method thereof
  • High-fidelity (Hi-Fi) audio system and driving method thereof
  • High-fidelity (Hi-Fi) audio system and driving method thereof

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Embodiment Construction

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

[0029] image 3 is a block diagram of the hi-fi audio system 300 of the present invention. The hi-fi system 300 includes an hi-fi controller 310 , a virtual hi-fi codec 314 and a digital signal processor 316 . In addition, audio data can be transmitted from the high-definition audio system 300 to the high-definition codec 320 through a high-definition channel (HD Link). In one embodiment, the high-fidelity audio system 300 is, for example, located in a chipset, and the high-fidelity codec 320 is, for example, located on a motherboard. In addition, the hi-fi audio controller 310 includes a first hi-fi audio controller part 310a and a hi-fi audio controller second part 310b. The first part 310a of the high-fidelity audio controller can be regarded as the fro...

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Abstract

The invention relates to a high-fidelity (Hi-Fi) audio system and a driving method thereof. The Hi-Fi audio system is suitable for connecting with an Hi-Fi codec and comprises an Hi-Fi audio controller, a virtual Hi-Fi codec and a digital signal processor (DSP), wherein the virtual Hi-Fi codec is connected with the Hi-Fi audio controller for providing a simulated Hi-Fi codec architecture to an operating system and receiving and sending audio data; the DSP is connected with the virtual Hi-Fi codec for buffering or decoding the audio data; the virtual Hi-Fi codec composes a plurality of virtualtool sets according to the Hi-Fi codec architecture to form the simulated Hi-Fi codec architecture so that the operating system takes the virtual Hi-Fi codec as the Hi-Fi codec. The invention can process un-decoded audio data without configuring a higher-cost audio decoder or a Hi-Fi codec with the audio decoder, thereby decreasing the cost.

Description

technical field [0001] The invention relates to a high-fidelity audio system, in particular to a high-fidelity audio system with a virtual high-fidelity codec. Background technique [0002] Currently, computer products on the market, whether personal computers or notebook computers, generally use high-fidelity (High Definition, HD) interfaces to process audio data. A typical high-fidelity audio system 100 such as figure 1 As shown, it includes a high-definition audio controller (High Definition Audio Controller, HDAC) 110 located in the chipset, a high-fidelity codec (High Definition Codec, HD Codec) 120 located on the motherboard, and an audio decoder externally connected to the motherboard device 130. In some cases, the external audio decoder 130 is combined with an audio amplifier (AudioAmplifier) ​​(not shown) for audio playback. Alternatively, in some cases, the audio decoder 130 and the audio amplifier (not shown) can be combined into an integrated amplifier. The h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00G06F13/10
Inventor 翁志豪叶大荣张智淳吴青晃林景祥
Owner VIA TECH INC