Base Station Speech Enhancement for Noise Reduction
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Solution Overview
Problem
Existing user equipment lacks the capability to effectively improve sound quality due to constraints in calculation resources and the absence of speech enhancement and reinforcement functions, leading to noise amplification during speech reinforcement processing, especially when one user equipment lacks the speech enhancement function of the other.
Innovation Solution
Implementing speech enhancement and reinforcement processing at a base station, which receives and processes transmission signals from user equipment, removing noise using noise information from both sides to enhance and reinforce speech signals before retransmission, thereby eliminating the need for hardware or software in individual user equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If speech enhancement and reinforcement processing is performed in user equipment, then sound quality is improved, but calculation resources are consumed and device complexity increases
Solution Approach 1:
The base station acts as an intermediary that performs speech enhancement and reinforcement processing for user equipment. Instead of requiring complex processing capabilities within the user equipment itself, the base station mediates the signal processing function, thereby improving sound quality without increasing the complexity of portable devices.
Solution Approach 2:
The base station provides universal speech enhancement and reinforcement processing services to multiple user equipment devices. By centralizing this functionality at the base station level, the system achieves multi-functionality without requiring each user equipment to have dedicated processing capabilities, thus resolving the contradiction between sound quality improvement and device complexity.
2Reliability
If speech reinforcement processing is performed without speech enhancement, then articulation is improved, but noise is amplified and sound quality degrades
Solution Approach 1:
The base station performs speech enhancement processing as a preliminary action before speech reinforcement processing. This preliminary noise removal ensures that when speech reinforcement amplifies the signal, it amplifies clean speech rather than noise, thus improving articulation without the harmful effect of noise amplification.
Solution Approach 2:
The base station uses noise information feedback from the transmission signal to perform accurate speech enhancement. By analyzing the noise characteristics in the received signal and using this feedback to guide the enhancement process, the system effectively separates speech from noise, enabling safe speech reinforcement without amplifying harmful noise components.
3Device complexity
If user equipment lacks speech enhancement function, then device simplicity is maintained, but sound quality cannot be improved when communicating with equipment that has the function
Solution Approach 1:
The base station provides universal speech enhancement and reinforcement services to all user equipment regardless of whether individual devices have built-in processing capabilities. This universal service ensures sound quality compatibility in all communication scenarios while maintaining device simplicity, as the base station compensates for the absence of local processing functions.
Data Source
AI summary
Disclosed is a method of improving a sound quality, including: receiving a transmission signal of a first user equipment; removing noise in the transmission signal using noise information of the first user equipment side; performing speech reinforcement with respect to the noise removed transmission signal using noise information of a second user equipment side; and transmitting the speech reinforced transmission signal to the second user equipment.