Multiple Acoustic-Electric Transducers for Direct Sub-Band Generation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Generating sub-band signals from digital audio signals is time-consuming due to the computing processes involved, leading to inefficiencies and potential noise introduction in existing signal processing systems.
Innovation Solution
A signal processing device utilizing multiple acoustic-electric transducers with different frequency responses to directly generate sub-band signals, reducing the need for digital signal processing and minimizing noise by leveraging the inherent properties of these transducers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital signal processing is used to generate sub-band signals, then signal processing can be performed, but processing time increases and noise is introduced
Solution Approach 1:
The patent replaces the digital signal processing system (mechanical/computational system) with acoustic-electric transducers that directly generate sub-band signals through physical acoustic filtering. This substitution eliminates the need for digital computation, thereby reducing processing time and avoiding digital noise while maintaining signal quality.
Solution Approach 2:
The patent performs sub-band decomposition in advance through the frequency response characteristics of multiple acoustic-electric transducers before digital processing is needed. Each transducer is designed with a specific frequency response that pre-separates the audio signal into sub-bands, so when the signal is detected, the separation is already accomplished, eliminating the need for time-consuming digital decomposition.
2Reliability
If digital signal processing is used to generate sub-band signals, then sub-band signals can be obtained, but processing complexity increases
Solution Approach 1:
The patent replaces complex digital signal processing algorithms and computations with simple acoustic-electric transduction. Multiple transducers with different frequency responses physically separate the signal into sub-bands through their inherent acoustic characteristics, eliminating the need for complex digital filtering and processing algorithms.
Solution Approach 2:
The acoustic-electric transducers self-perform the sub-band decomposition function through their designed frequency responses. Each transducer automatically separates specific frequency components of the audio signal based on its physical characteristics, without requiring external digital processing control or complex algorithmic intervention.
3Productivity
If multiple acoustic-electric transducers with different frequency responses are used, then sub-band signals can be generated efficiently, but device complexity increases
Solution Approach 1:
The patent divides the audio frequency spectrum into multiple sub-bands by using multiple acoustic-electric transducers, each responsible for detecting and generating signals for a specific frequency range. This segmentation allows parallel processing of different frequency components, significantly improving signal generation speed while the modular nature of using separate transducers keeps the overall system architecture manageable.
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
The device efficiently generates sub-band signals with reduced processing time and minimal noise, improving the speed and quality of signal processing operations.
Implementation Method 1
an acoustic-electric transducer configured to detect the audio signal and generate an electric signal according to the detected audio signal
Data Source
AI summary
The present disclosure relates to a device for processing an audio signal. The device may include a first acoustic-electric transducer and a second acoustic-electric transducer. The first acoustic-electric transducer may have a first frequency response, and may be configured to detect the audio signal and generate a first sub-band signal according to the detected audio signal. The second acoustic-electric transducer may have a second frequency response, the second frequency response being different from the first frequency response. The second acoustic-electric transducer may be configured to detect the audio signal and generate a second sub-band signal according to the detected audio signal.