Audio Transmission Device Cost Reduction via Circuit Segmentation
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Solution Overview
Problem
Existing audio transmission devices with digital signal processors are expensive due to the cost of these processors, which are necessary for processing sound signals effectively.
Innovation Solution
An audio transmission device comprising a detection circuit, a vendor-defined class circuit, and an audio class circuit, where the detection circuit generates an input voice signal, the vendor-defined class circuit processes it, and the audio class circuit provides a clean voice signal to the media manager, eliminating the need for a digital signal processor within the device by processing noise outside the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a digital signal processor is used to process sound signals, then voice recognition and noise reduction effectiveness are improved, but the device cost increases
Solution Approach 1:
The audio transmission device is divided into multiple functional circuits: a detection circuit for capturing audio signals, a vendor-defined class circuit for initial signal processing, and an audio class circuit for final processing and transmission. This segmentation allows each circuit to perform specific functions without requiring a complete digital signal processor, thereby reducing cost while maintaining processing effectiveness.
Solution Approach 2:
The vendor-defined class circuit acts as an intermediary between the detection circuit and the audio class circuit. It performs preliminary processing of the audio signal before it reaches the audio class circuit, enabling progressive signal processing that reduces the computational burden on subsequent circuits and eliminates the need for an expensive digital signal processor.
2Reliability
If a digital signal processor is integrated into the audio transmission device, then noise reduction capability is improved, but the device complexity increases
Solution Approach 1:
The complex digital signal processing functions are extracted from a single integrated processor and distributed across multiple specialized circuits. The detection circuit handles audio capture, the vendor-defined class circuit handles preliminary processing, and the audio class circuit handles final processing and transmission. This extraction reduces the complexity of any single component while maintaining overall system effectiveness.
Solution Approach 2:
The processing functionality is segmented into distinct circuit blocks with specific roles. Each circuit block handles a particular aspect of signal processing, making the overall system more manageable and less complex than a single integrated processor would be, while achieving the same noise reduction effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces the cost of the audio transmission device while maintaining effective voice signal processing, ensuring clean voice signals are provided to electronic devices, thereby enhancing the accuracy of voice recognition and noise reduction applications.
Implementation Method 1
The detection circuit detects an external sound to generate an input voice
Data Source
AI summary
An audio transmission device coupled to an electronic device and including a detection circuit, a vendor-defined class circuit, and an audio class circuit is provided. The detection circuit detects an external sound to generate an input voice. The vendor-defined class circuit provides a first voice signal to the electronic device according to the input voice. An audio processing application program of the electronic device processes the first voice signal to generate a processed voice to the vendor-defined class circuit. The audio class circuit receives the processed voice from the vendor-defined class circuit, uses the processed voice as a second voice signal, and provides the second voice signal to the media manager of the electronic device.